Issue #3132964 by jungle, longwave, sja112, dww, xjm, daffie: assertResponse() does not actually support a $message parameter, so stop passing one

core/modules/aggregator/tests/src/Functional/AddFeedTest.php

@@ -35,7 +35,7 @@ class AddFeedTest extends AggregatorTestBase {
 
     // Check feed source.
     $this->drupalGet('aggregator/sources/' . $feed->id());
-    $this->assertResponse(200, 'Feed source exists.');
+    $this->assertResponse(200);
     $this->assertText($feed->label(), 'Page title');
     $this->assertRaw($feed->getWebsiteUrl());
 
@@ -91,7 +91,7 @@ class AddFeedTest extends AggregatorTestBase {
 
     // Check feed source.
     $this->drupalGet('aggregator/sources/' . $feed->id());
-    $this->assertResponse(200, 'Long URL feed source exists.');
+    $this->assertResponse(200);
     $this->assertText($feed->label(), 'Page title');
 
     // Delete feeds.

core/modules/aggregator/tests/src/Functional/AggregatorTestBase.php

@@ -181,7 +181,7 @@ abstract class AggregatorTestBase extends BrowserTestBase {
   public function updateFeedItems(FeedInterface $feed, $expected_count = NULL) {
     // First, let's ensure we can get to the rss xml.
     $this->drupalGet($feed->getUrl());
-    $this->assertResponse(200, new FormattableMarkup(':url is reachable.', [':url' => $feed->getUrl()]));
+    $this->assertResponse(200);
 
     // Attempt to access the update link directly without an access token.
     $this->drupalGet('admin/config/services/aggregator/update/' . $feed->id());

core/modules/aggregator/tests/src/Functional/DeleteFeedTest.php

@@ -45,7 +45,7 @@ class DeleteFeedTest extends AggregatorTestBase {
 
     // Check feed source.
     $this->drupalGet('aggregator/sources/' . $feed1->id());
-    $this->assertResponse(404, 'Deleted feed source does not exist.');
+    $this->assertResponse(404);
 
     // Check database for feed.
     $result = \Drupal::entityQuery('aggregator_feed')->condition('title', $feed1->label())->condition('url', $feed1->getUrl())->count()->execute();

core/modules/aggregator/tests/src/Functional/FeedAdminDisplayTest.php

@@ -22,7 +22,7 @@ class FeedAdminDisplayTest extends AggregatorTestBase {
     $scheduled_feed = $this->createFeed(NULL, ['refresh' => '900']);
 
     $this->drupalGet('admin/config/services/aggregator');
-    $this->assertResponse(200, 'Aggregator feed overview page exists.');
+    $this->assertResponse(200);
 
     // The scheduled feed shows that it has not been updated yet and is
     // scheduled.

core/modules/aggregator/tests/src/Functional/FeedParserTest.php

@@ -2,7 +2,6 @@
 
 namespace Drupal\Tests\aggregator\Functional;
 
-use Drupal\Component\Render\FormattableMarkup;
 use Drupal\aggregator\FeedStorageInterface;
 use Drupal\Core\Url;
 use Drupal\aggregator\Entity\Feed;
@@ -38,7 +37,7 @@ class FeedParserTest extends AggregatorTestBase {
     $feed = $this->createFeed($this->getRSS091Sample());
     $feed->refreshItems();
     $this->drupalGet('aggregator/sources/' . $feed->id());
-    $this->assertResponse(200, new FormattableMarkup('Feed %name exists.', ['%name' => $feed->label()]));
+    $this->assertResponse(200);
     $this->assertText('First example feed item title');
     $this->assertLinkByHref('http://example.com/example-turns-one');
     $this->assertText('First example feed item description.');
@@ -61,7 +60,7 @@ class FeedParserTest extends AggregatorTestBase {
     $feed = $this->createFeed($this->getAtomSample());
     $feed->refreshItems();
     $this->drupalGet('aggregator/sources/' . $feed->id());
-    $this->assertResponse(200, new FormattableMarkup('Feed %name exists.', ['%name' => $feed->label()]));
+    $this->assertResponse(200);
     $this->assertText('Atom-Powered Robots Run Amok');
     $this->assertLinkByHref('http://example.org/2003/12/13/atom03');
     $this->assertText('Some text.');
@@ -85,7 +84,7 @@ class FeedParserTest extends AggregatorTestBase {
     $feed = $this->createFeed($this->getHtmlEntitiesSample());
     $feed->refreshItems();
     $this->drupalGet('aggregator/sources/' . $feed->id());
-    $this->assertResponse(200, new FormattableMarkup('Feed %name exists.', ['%name' => $feed->label()]));
+    $this->assertResponse(200);
     $this->assertRaw("Quote" Amp&");
   }
 

core/modules/aggregator/tests/src/Functional/UpdateFeedTest.php

@@ -44,7 +44,7 @@ class UpdateFeedTest extends AggregatorTestBase {
 
       // Check feed source.
       $this->drupalGet('aggregator/sources/' . $feed->id());
-      $this->assertResponse(200, 'Feed source exists.');
+      $this->assertResponse(200);
       $this->assertText($edit['title[0][value]'], 'Page title');
 
       // Set correct title so deleteFeed() will work.

core/modules/basic_auth/tests/src/Functional/BasicAuthTest.php

@@ -47,31 +47,37 @@ class BasicAuthTest extends BrowserTestBase {
     $account = $this->drupalCreateUser();
     $url = Url::fromRoute('router_test.11');
 
+    // Ensure we can log in with valid authentication details.
     $this->basicAuthGet($url, $account->getAccountName(), $account->pass_raw);
     $this->assertText($account->getAccountName(), 'Account name is displayed.');
-    $this->assertResponse('200', 'HTTP response is OK');
+    $this->assertResponse(200);
     $this->mink->resetSessions();
     $this->assertNull($this->drupalGetHeader('X-Drupal-Cache'));
     // Check that Cache-Control is not set to public.
     $this->assertSession()->responseHeaderNotContains('Cache-Control', 'public');
 
+    // Ensure that invalid authentication details give access denied.
     $this->basicAuthGet($url, $account->getAccountName(), $this->randomMachineName());
     $this->assertNoText($account->getAccountName(), 'Bad basic auth credentials do not authenticate the user.');
-    $this->assertResponse('403', 'Access is not granted.');
+    $this->assertResponse(403);
     $this->mink->resetSessions();
 
+    // Ensure that the user is prompted to authenticate if they are not yet
+    // authenticated and the route only allows basic auth.
     $this->drupalGet($url);
     $this->assertEqual($this->drupalGetHeader('WWW-Authenticate'), new FormattableMarkup('Basic realm="@realm"', ['@realm' => \Drupal::config('system.site')->get('name')]));
-    $this->assertResponse('401', 'Not authenticated on the route that allows only basic_auth. Prompt to authenticate received.');
+    $this->assertResponse(401);
 
+    // Ensure that a route without basic auth defined doesn't prompt for auth.
     $this->drupalGet('admin');
-    $this->assertResponse('403', 'No authentication prompt for routes not explicitly defining authentication providers.');
+    $this->assertResponse(403);
 
     $account = $this->drupalCreateUser(['access administration pages']);
 
+    // Ensure that a route without basic auth defined doesn't allow login.
     $this->basicAuthGet(Url::fromRoute('system.admin'), $account->getAccountName(), $account->pass_raw);
     $this->assertNoLink('Log out', 'User is not logged in');
-    $this->assertResponse('403', 'No basic authentication for routes not explicitly defining authentication providers.');
+    $this->assertResponse(403);
     $this->mink->resetSessions();
 
     // Ensure that pages already in the page cache aren't returned from page
@@ -107,7 +113,7 @@ class BasicAuthTest extends BrowserTestBase {
 
     // IP limit has reached to its limit. Even valid user credentials will fail.
     $this->basicAuthGet($url, $user->getAccountName(), $user->pass_raw);
-    $this->assertResponse('403', 'Access is blocked because of IP based flood prevention.');
+    $this->assertResponse(403);
   }
 
   /**
@@ -131,7 +137,7 @@ class BasicAuthTest extends BrowserTestBase {
 
     // A successful login will reset the per-user flood control count.
     $this->basicAuthGet($url, $user->getAccountName(), $user->pass_raw);
-    $this->assertResponse('200', 'Per user flood prevention gets reset on a successful login.');
+    $this->assertResponse(200);
 
     // Try 2 failed logins for a user. They will trigger flood control.
     for ($i = 0; $i < 2; $i++) {
@@ -140,12 +146,12 @@ class BasicAuthTest extends BrowserTestBase {
 
     // Now the user account is blocked.
     $this->basicAuthGet($url, $user->getAccountName(), $user->pass_raw);
-    $this->assertResponse('403', 'The user account is blocked due to per user flood prevention.');
+    $this->assertResponse(403);
 
     // Try one successful attempt for a different user, it should not trigger
     // any flood control.
     $this->basicAuthGet($url, $user2->getAccountName(), $user2->pass_raw);
-    $this->assertResponse('200', 'Per user flood prevention does not block access for other users.');
+    $this->assertResponse(200);
   }
 
   /**
@@ -160,7 +166,7 @@ class BasicAuthTest extends BrowserTestBase {
 
     $this->basicAuthGet($url, $account->getAccountName(), $account->pass_raw);
     $this->assertText($account->getAccountName(), 'Account name is displayed.');
-    $this->assertResponse('200', 'HTTP response is OK');
+    $this->assertResponse(200);
   }
 
   /**
@@ -172,24 +178,24 @@ class BasicAuthTest extends BrowserTestBase {
 
     // Case when no credentials are passed.
     $this->drupalGet($url);
-    $this->assertResponse('401', 'The user is blocked when no credentials are passed.');
+    $this->assertResponse(401);
     $this->assertNoText('Exception', "No raw exception is displayed on the page.");
     $this->assertText('Please log in to access this page.', "A user friendly access unauthorized message is displayed.");
 
     // Case when empty credentials are passed.
     $this->basicAuthGet($url, NULL, NULL);
-    $this->assertResponse('403', 'The user is blocked when empty credentials are passed.');
+    $this->assertResponse(403);
     $this->assertText('Access denied', "A user friendly access denied message is displayed");
 
     // Case when wrong credentials are passed.
     $this->basicAuthGet($url, $account->getAccountName(), $this->randomMachineName());
-    $this->assertResponse('403', 'The user is blocked when wrong credentials are passed.');
+    $this->assertResponse(403);
     $this->assertText('Access denied', "A user friendly access denied message is displayed");
 
     // Case when correct credentials but hasn't access to the route.
     $url = Url::fromRoute('router_test.15');
     $this->basicAuthGet($url, $account->getAccountName(), $account->pass_raw);
-    $this->assertResponse('403', 'The used authentication method is not allowed on this route.');
+    $this->assertResponse(403);
     $this->assertText('Access denied', "A user friendly access denied message is displayed");
   }
 

core/modules/block/tests/src/Functional/BlockUiTest.php

@@ -94,13 +94,15 @@ class BlockUiTest extends BrowserTestBase {
     $elements = $this->xpath('//div[contains(@class, "region-highlighted")]/div[contains(@class, "block-region") and contains(text(), :title)]', [':title' => 'Highlighted']);
     $this->assertTrue(!empty($elements), 'Block demo regions are shown.');
 
+    // Ensure that other themes can use the block demo page.
     \Drupal::service('theme_installer')->install(['test_theme']);
     $this->drupalGet('admin/structure/block/demo/test_theme');
     $this->assertEscaped('<strong>Test theme</strong>');
 
+    // Ensure that a hidden theme cannot use the block demo page.
     \Drupal::service('theme_installer')->install(['stable']);
     $this->drupalGet('admin/structure/block/demo/stable');
-    $this->assertResponse(404, 'Hidden themes that are not the default theme are not supported by the block demo screen');
+    $this->assertResponse(404);
   }
 
   /**
@@ -159,16 +161,19 @@ class BlockUiTest extends BrowserTestBase {
     $this->assertLink($theme_handler->getName('stark'));
     $this->assertNoLink($theme_handler->getName('stable'));
 
+    // Ensure that a hidden theme cannot use the block demo page.
     $this->drupalGet('admin/structure/block/list/stable');
-    $this->assertResponse(404, 'Placing blocks through UI is not possible for a hidden base theme.');
+    $this->assertResponse(404);
 
+    // Ensure that a hidden theme set as the admin theme can use the block demo
+    // page.
     \Drupal::configFactory()->getEditable('system.theme')->set('admin', 'stable')->save();
     \Drupal::service('router.builder')->rebuildIfNeeded();
     $this->drupalPlaceBlock('local_tasks_block', ['region' => 'header', 'theme' => 'stable']);
     $this->drupalGet('admin/structure/block');
     $this->assertLink($theme_handler->getName('stable'));
     $this->drupalGet('admin/structure/block/list/stable');
-    $this->assertResponse(200, 'Placing blocks through UI is possible for a hidden base theme that is the admin theme.');
+    $this->assertResponse(200);
   }
 
   /**

core/modules/block_content/tests/src/Functional/BlockContentPageViewTest.php

@@ -31,8 +31,8 @@ class BlockContentPageViewTest extends BlockContentTestBase {
     // Attempt to view the block.
     $this->drupalGet('block-content/' . $block->id());
 
-    // Assert response was '200' and not '403 Access denied'.
+    // Ensure user was able to view the block.
-    $this->assertResponse('200', 'User was able the view the block');
+    $this->assertResponse(200);
     $this->drupalGet('<front>');
     $this->assertRaw(t('This block is broken or missing. You may be missing content or you might need to enable the original module.'));
   }

core/modules/book/tests/src/Functional/BookTest.php

@@ -214,11 +214,11 @@ class BookTest extends BrowserTestBase {
 
     // Make sure we can't export an unsupported format.
     $this->drupalGet('book/export/foobar/' . $this->book->id());
-    $this->assertResponse('404', 'Unsupported export format returned "not found".');
+    $this->assertResponse(404);
 
     // Make sure we get a 404 on a not existing book node.
     $this->drupalGet('book/export/html/123');
-    $this->assertResponse('404', 'Not existing book node returned "not found".');
+    $this->assertResponse(404);
 
     // Make sure an anonymous user cannot view printer-friendly version.
     $this->drupalLogout();
@@ -229,14 +229,14 @@ class BookTest extends BrowserTestBase {
 
     // Try getting the URL directly, and verify it fails.
     $this->drupalGet('book/export/html/' . $this->book->id());
-    $this->assertResponse('403', 'Anonymous user properly forbidden.');
+    $this->assertResponse(403);
 
     // Now grant anonymous users permission to view the printer-friendly
     // version and verify that node access restrictions still prevent them from
     // seeing it.
     user_role_grant_permissions(RoleInterface::ANONYMOUS_ID, ['access printer-friendly version']);
     $this->drupalGet('book/export/html/' . $this->book->id());
-    $this->assertResponse('403', 'Anonymous user properly forbidden from seeing the printer-friendly version when denied by node access.');
+    $this->assertResponse(403);
   }
 
   /**
@@ -356,9 +356,11 @@ class BookTest extends BrowserTestBase {
     $this->drupalLogin($this->adminUser);
     $edit = [];
 
-    // Test access to delete top-level and child book nodes.
+    // Ensure that the top-level book node cannot be deleted.
     $this->drupalGet('node/' . $this->book->id() . '/outline/remove');
-    $this->assertResponse('403', 'Deleting top-level book node properly forbidden.');
+    $this->assertResponse(403);
+
+    // Ensure that a child book node can be deleted.
     $this->drupalPostForm('node/' . $nodes[4]->id() . '/outline/remove', $edit, t('Remove'));
     $node_storage->resetCache([$nodes[4]->id()]);
     $node4 = $node_storage->load($nodes[4]->id());

core/modules/comment/tests/src/Functional/CommentAdminTest.php

@@ -156,12 +156,14 @@ class CommentAdminTest extends CommentTestBase {
 
     $this->assertFalse($this->commentExists($anonymous_comment4), 'Anonymous comment was not published.');
 
-    // Approve comment.
+    // Ensure comments cannot be approved without a valid token.
     $this->drupalLogin($this->adminUser);
     $this->drupalGet('comment/1/approve');
-    $this->assertResponse(403, 'Forged comment approval was denied.');
+    $this->assertResponse(403);
     $this->drupalGet('comment/1/approve', ['query' => ['token' => 'forged']]);
-    $this->assertResponse(403, 'Forged comment approval was denied.');
+    $this->assertResponse(403);
+
+    // Approve comment.
     $this->drupalGet('comment/1/edit');
     $this->assertFieldChecked('edit-status-0');
     $this->drupalGet('node/' . $this->node->id());

core/modules/comment/tests/src/Functional/CommentTypeTest.php

@@ -64,8 +64,9 @@ class CommentTypeTest extends CommentTestBase {
     // Log in a test user.
     $this->drupalLogin($this->adminUser);
 
+    // Ensure that the new comment type admin page can be accessed.
     $this->drupalGet('admin/structure/comment/manage/' . $type->id());
-    $this->assertResponse(200, 'The new comment type can be accessed at the edit form.');
+    $this->assertResponse(200);
 
     // Create a comment type via the user interface.
     $edit = [

core/modules/config/tests/src/Functional/ConfigExportUITest.php

@@ -53,7 +53,7 @@ class ConfigExportUITest extends BrowserTestBase {
     // Submit the export form and verify response. This will create a file in
     // temporary directory with the default name config.tar.gz.
     $this->drupalPostForm('admin/config/development/configuration/full/export', [], t('Export'));
-    $this->assertResponse(200, 'User can access the download callback.');
+    $this->assertResponse(200);
 
     // Test if header contains file name with hostname and timestamp.
     $request = \Drupal::request();

core/modules/contact/tests/src/Functional/ContactLanguageTest.php

@@ -51,7 +51,7 @@ class ContactLanguageTest extends BrowserTestBase {
   public function testContactLanguage() {
     // Ensure that contact form by default does not show the language select.
     $this->drupalGet('contact');
-    $this->assertResponse(200, 'The page exists');
+    $this->assertResponse(200);
     $this->assertNoField('edit-langcode-0-value');
 
     // Enable language select from content language settings page.
@@ -62,7 +62,7 @@ class ContactLanguageTest extends BrowserTestBase {
 
     // Ensure that contact form now shows the language select.
     $this->drupalGet('contact');
-    $this->assertResponse(200, 'The page exists');
+    $this->assertResponse(200);
     $this->assertField('edit-langcode-0-value');
   }
 

core/modules/contact/tests/src/Functional/ContactPersonalTest.php

@@ -137,7 +137,7 @@ class ContactPersonalTest extends BrowserTestBase {
     $original_email = $this->contactUser->getEmail();
     $this->contactUser->setEmail(FALSE)->save();
     $this->drupalGet('user/' . $this->contactUser->id() . '/contact');
-    $this->assertResponse(404, 'Not found (404) returned when visiting a personal contact form for a user with no email address');
+    $this->assertResponse(404);
 
     // Test that the 'contact tab' does not appear on the user profiles
     // for users without an email address configured.

core/modules/content_translation/tests/src/Functional/ContentTranslationUITestBase.php

@@ -83,7 +83,7 @@ abstract class ContentTranslationUITestBase extends ContentTranslationTestBase {
     $entity = $storage->load($this->entityId);
     $this->assertNotEmpty($entity, 'Entity found in the database.');
     $this->drupalGet($entity->toUrl());
-    $this->assertResponse(200, 'Entity URL is valid.');
+    $this->assertResponse(200);
 
     // Ensure that the content language cache context is not yet added to the
     // page.

core/modules/content_translation/tests/src/Functional/ContentTranslationWorkflowsTest.php

@@ -163,26 +163,25 @@ class ContentTranslationWorkflowsTest extends ContentTranslationTestBase {
   protected function doTestWorkflows(UserInterface $user, $expected_status) {
     $default_langcode = $this->langcodes[0];
     $languages = $this->container->get('language_manager')->getLanguages();
-    $args = ['@user_label' => $user->getAccountName()];
     $options = ['language' => $languages[$default_langcode], 'absolute' => TRUE];
     $this->drupalLogin($user);
 
     // Check whether the user is allowed to access the entity form in edit mode.
     $edit_url = $this->entity->toUrl('edit-form', $options);
     $this->drupalGet($edit_url, $options);
-    $this->assertResponse($expected_status['edit'], new FormattableMarkup('The @user_label has the expected edit access.', $args));
+    $this->assertResponse($expected_status['edit']);
 
     // Check whether the user is allowed to access the entity delete form.
     $delete_url = $this->entity->toUrl('delete-form', $options);
     $this->drupalGet($delete_url, $options);
-    $this->assertResponse($expected_status['delete'], new FormattableMarkup('The @user_label has the expected delete access.', $args));
+    $this->assertResponse($expected_status['delete']);
 
     // Check whether the user is allowed to access the translation overview.
     $langcode = $this->langcodes[1];
     $options['language'] = $languages[$langcode];
     $translations_url = $this->entity->toUrl('drupal:content-translation-overview', $options)->toString();
     $this->drupalGet($translations_url);
-    $this->assertResponse($expected_status['overview'], new FormattableMarkup('The @user_label has the expected translation overview access.', $args));
+    $this->assertResponse($expected_status['overview']);
 
     // Check whether the user is allowed to create a translation.
     $add_translation_url = Url::fromRoute("entity.$this->entityTypeId.content_translation_add", [$this->entityTypeId => $this->entity->id(), 'source' => $default_langcode, 'target' => $langcode], $options);
@@ -198,7 +197,7 @@ class ContentTranslationWorkflowsTest extends ContentTranslationTestBase {
     else {
       $this->drupalGet($add_translation_url);
     }
-    $this->assertResponse($expected_status['add_translation'], new FormattableMarkup('The @user_label has the expected translation creation access.', $args));
+    $this->assertResponse($expected_status['add_translation']);
 
     // Check whether the user is allowed to edit a translation.
     $langcode = $this->langcodes[2];
@@ -226,7 +225,7 @@ class ContentTranslationWorkflowsTest extends ContentTranslationTestBase {
     else {
       $this->drupalGet($edit_translation_url);
     }
-    $this->assertResponse($expected_status['edit_translation'], new FormattableMarkup('The @user_label has the expected translation edit access.', $args));
+    $this->assertResponse($expected_status['edit_translation']);
 
     // Check whether the user is allowed to delete a translation.
     $langcode = $this->langcodes[2];
@@ -254,7 +253,7 @@ class ContentTranslationWorkflowsTest extends ContentTranslationTestBase {
     else {
       $this->drupalGet($delete_translation_url);
     }
-    $this->assertResponse($expected_status['delete_translation'], new FormattableMarkup('The @user_label has the expected translation deletion access.', $args));
+    $this->assertResponse($expected_status['delete_translation']);
   }
 
   /**

core/modules/file/tests/src/Functional/DownloadTest.php

@@ -77,7 +77,7 @@ class DownloadTest extends FileManagedTestBase {
     $this->drupalGet($url);
     $this->assertEqual($this->drupalGetHeader('x-foo'), 'Bar', 'Found header set by file_test module on private download.');
     $this->assertNull($this->drupalGetHeader('x-drupal-cache'), 'Page cache is disabled on private file download.');
-    $this->assertResponse(200, 'Correctly allowed access to a file when file_test provides headers.');
+    $this->assertResponse(200);
     // Ensure hook_file_download is fired correctly.
     $this->assertEquals($file->getFileUri(), \Drupal::state()->get('file_test.results')['download'][0][0]);
 

core/modules/file/tests/src/Functional/FileFieldAnonymousSubmissionTest.php

@@ -40,7 +40,7 @@ class FileFieldAnonymousSubmissionTest extends FileFieldTestBase {
     // Load the node form.
     $this->drupalLogout();
     $this->drupalGet('node/add/article');
-    $this->assertResponse(200, 'Loaded the article node form.');
+    $this->assertResponse(200);
     $this->assertText(strip_tags(t('Create @name', ['@name' => $bundle_label])));
 
     $edit = [
@@ -71,7 +71,7 @@ class FileFieldAnonymousSubmissionTest extends FileFieldTestBase {
     // Load the node form.
     $this->drupalLogout();
     $this->drupalGet('node/add/article');
-    $this->assertResponse(200, 'Loaded the article node form.');
+    $this->assertResponse(200);
     $this->assertText(strip_tags(t('Create @name', ['@name' => $bundle_label])));
 
     // Generate an image file.
@@ -128,7 +128,7 @@ class FileFieldAnonymousSubmissionTest extends FileFieldTestBase {
 
     // Load the node form.
     $this->drupalGet('node/add/article');
-    $this->assertResponse(200, 'Loaded the article node form.');
+    $this->assertResponse(200);
     $this->assertText(strip_tags(t('Create @name', ['@name' => $bundle_label])));
 
     // Generate an image file.

core/modules/file/tests/src/Functional/FileFieldWidgetTest.php

@@ -93,7 +93,7 @@ class FileFieldWidgetTest extends FileFieldTestBase {
 
     // Ensure the file can be downloaded.
     $this->drupalGet($node_file->createFileUrl());
-    $this->assertResponse(200, 'Confirmed that the generated URL is correct by downloading the shipped file.');
+    $this->assertResponse(200);
 
     // Ensure the edit page has a remove button instead of an upload button.
     $this->drupalGet("node/$nid/edit");
@@ -267,7 +267,7 @@ class FileFieldWidgetTest extends FileFieldTestBase {
 
     // Ensure the private file is available to the user who uploaded it.
     $this->drupalGet($node_file->createFileUrl());
-    $this->assertResponse(200, 'Confirmed that the generated URL is correct by downloading the shipped file.');
+    $this->assertResponse(200);
 
     // Ensure we can't change 'uri_scheme' field settings while there are some
     // entities with uploaded files.
@@ -335,12 +335,12 @@ class FileFieldWidgetTest extends FileFieldTestBase {
     $url = $comment_file->createFileUrl();
     $this->assertNotEqual($url, NULL, 'Confirmed that the URL is valid');
     $this->drupalGet($comment_file->createFileUrl());
-    $this->assertResponse(200, 'Confirmed that the generated URL is correct by downloading the shipped file.');
+    $this->assertResponse(200);
 
-    // Test anonymous file download.
+    // Ensure that the anonymous user cannot download the file.
     $this->drupalLogout();
     $this->drupalGet($comment_file->createFileUrl());
-    $this->assertResponse(403, 'Confirmed that access is denied for the file without the needed permission.');
+    $this->assertResponse(403);
 
     // Unpublishes node.
     $this->drupalLogin($this->adminUser);
@@ -350,7 +350,7 @@ class FileFieldWidgetTest extends FileFieldTestBase {
     // Ensures normal user can no longer download the file.
     $this->drupalLogin($user);
     $this->drupalGet($comment_file->createFileUrl());
-    $this->assertResponse(403, 'Confirmed that access is denied for the file without the needed permission.');
+    $this->assertResponse(403);
   }
 
   /**
@@ -512,7 +512,7 @@ class FileFieldWidgetTest extends FileFieldTestBase {
 
     // Ensure the file can be downloaded.
     $this->drupalGet($node_file->createFileUrl());
-    $this->assertResponse(200, 'Confirmed that the generated URL is correct by downloading the shipped file.');
+    $this->assertResponse(200);
 
     // "Click" the remove button (emulating either a nojs or js submission).
     // In this POST request, the attacker "guesses" the fid of the victim's

core/modules/file/tests/src/Functional/FilePrivateTest.php

@@ -60,10 +60,11 @@ class FilePrivateTest extends FileFieldTestBase {
     $this->assertRaw($node_file->getFilename(), 'File reference is displayed after attaching it');
     // Ensure the file can be downloaded.
     $this->drupalGet(file_create_url($node_file->getFileUri()));
-    $this->assertResponse(200, 'Confirmed that the generated URL is correct by downloading the shipped file.');
+    $this->assertResponse(200);
     $this->drupalLogOut();
+    // Ensure the file cannot be downloaded after logging out.
     $this->drupalGet(file_create_url($node_file->getFileUri()));
-    $this->assertResponse(403, 'Confirmed that access is denied for the file without the needed permission.');
+    $this->assertResponse(403);
 
     // Create a field with no view access. See
     // field_test_entity_field_access().
@@ -79,7 +80,7 @@ class FilePrivateTest extends FileFieldTestBase {
     // Ensure the file cannot be downloaded.
     $file_url = file_create_url($node_file->getFileUri());
     $this->drupalGet($file_url);
-    $this->assertResponse(403, 'Confirmed that access is denied for the file without view field access permission.');
+    $this->assertResponse(403);
 
     // Attempt to reuse the file when editing a node.
     $edit = [];
@@ -114,20 +115,20 @@ class FilePrivateTest extends FileFieldTestBase {
     \Drupal::state()->set('file_test.allow_all', TRUE);
     // Delete the node.
     $node->delete();
-    // Ensure the file can still be downloaded by the owner.
+    // Ensure the temporary file can still be downloaded by the owner.
     $this->drupalGet($file_url);
-    $this->assertResponse(200, 'Confirmed that the owner still has access to the temporary file.');
+    $this->assertResponse(200);
 
-    // Ensure the file cannot be downloaded by an anonymous user.
+    // Ensure the temporary file cannot be downloaded by an anonymous user.
     $this->drupalLogout();
     $this->drupalGet($file_url);
-    $this->assertResponse(403, 'Confirmed that access is denied for an anonymous user to the temporary file.');
+    $this->assertResponse(403);
 
-    // Ensure the file cannot be downloaded by another user.
+    // Ensure the temporary file cannot be downloaded by another user.
     $account = $this->drupalCreateUser();
     $this->drupalLogin($account);
     $this->drupalGet($file_url);
-    $this->assertResponse(403, 'Confirmed that access is denied for another user to the temporary file.');
+    $this->assertResponse(403);
 
     // As an anonymous user, create a temporary file with no references and
     // confirm that only the session that uploaded it may view it.
@@ -152,12 +153,14 @@ class FilePrivateTest extends FileFieldTestBase {
     $usage = $this->container->get('file.usage')->listUsage($file);
     $this->assertEmpty($usage, 'No file usage found.');
     $file_url = file_create_url($file->getFileUri());
+    // Ensure the anonymous uploader has access to the temporary file.
     $this->drupalGet($file_url);
-    $this->assertResponse(200, 'Confirmed that the anonymous uploader has access to the temporary file.');
+    $this->assertResponse(200);
     // Close the prior connection and remove the session cookie.
     $this->getSession()->reset();
+    // Ensure that a different anonymous user cannot access the temporary file.
     $this->drupalGet($file_url);
-    $this->assertResponse(403, 'Confirmed that another anonymous user cannot access the temporary file.');
+    $this->assertResponse(403);
 
     // As an anonymous user, create a permanent file, then remove all
     // references to the file (so that it becomes temporary again) and confirm
@@ -180,12 +183,14 @@ class FilePrivateTest extends FileFieldTestBase {
     $usage = $this->container->get('file.usage')->listUsage($file);
     $this->assertEmpty($usage, 'No file usage found.');
     $file_url = file_create_url($file->getFileUri());
+    // Ensure the anonymous uploader has access to the temporary file.
     $this->drupalGet($file_url);
-    $this->assertResponse(200, 'Confirmed that the anonymous uploader has access to the file whose references were removed.');
+    $this->assertResponse(200);
     // Close the prior connection and remove the session cookie.
     $this->getSession()->reset();
+    // Ensure that a different anonymous user cannot access the temporary file.
     $this->drupalGet($file_url);
-    $this->assertResponse(403, 'Confirmed that another anonymous user cannot access the file whose references were removed.');
+    $this->assertResponse(403);
 
     // As an anonymous user, create a permanent file that is referenced by a
     // published node and confirm that all anonymous users may view it.
@@ -201,12 +206,14 @@ class FilePrivateTest extends FileFieldTestBase {
     $usage = $this->container->get('file.usage')->listUsage($file);
     $this->assertCount(1, $usage, 'File usage found.');
     $file_url = file_create_url($file->getFileUri());
+    // Ensure the anonymous uploader has access to the file.
     $this->drupalGet($file_url);
-    $this->assertResponse(200, 'Confirmed that the anonymous uploader has access to the permanent file that is referenced by a published node.');
+    $this->assertResponse(200);
     // Close the prior connection and remove the session cookie.
     $this->getSession()->reset();
+    // Ensure that a different anonymous user can access the file.
     $this->drupalGet($file_url);
-    $this->assertResponse(200, 'Confirmed that another anonymous user also has access to the permanent file that is referenced by a published node.');
+    $this->assertResponse(200);
 
     // As an anonymous user, create a permanent file that is referenced by an
     // unpublished node and confirm that no anonymous users may view it (even
@@ -226,12 +233,14 @@ class FilePrivateTest extends FileFieldTestBase {
     $usage = $this->container->get('file.usage')->listUsage($file);
     $this->assertCount(1, $usage, 'File usage found.');
     $file_url = file_create_url($file->getFileUri());
+    // Ensure the anonymous uploader cannot access to the file.
     $this->drupalGet($file_url);
-    $this->assertResponse(403, 'Confirmed that the anonymous uploader cannot access the permanent file when it is referenced by an unpublished node.');
+    $this->assertResponse(403);
     // Close the prior connection and remove the session cookie.
     $this->getSession()->reset();
+    // Ensure that a different anonymous user cannot access the temporary file.
     $this->drupalGet($file_url);
-    $this->assertResponse(403, 'Confirmed that another anonymous user cannot access the permanent file when it is referenced by an unpublished node.');
+    $this->assertResponse(403);
   }
 
 }

core/modules/file/tests/src/Functional/PrivateFileOnTranslatedEntityTest.php

@@ -96,7 +96,7 @@ class PrivateFileOnTranslatedEntityTest extends FileFieldTestBase {
     $node = Node::load($default_language_node->id());
     $node_file = File::load($node->{$this->fieldName}->target_id);
     $this->drupalGet(file_create_url($node_file->getFileUri()));
-    $this->assertResponse(200, 'Confirmed that the file attached to the English node can be downloaded.');
+    $this->assertResponse(200);
 
     // Translate the node into French.
     $this->drupalGet('node/' . $default_language_node->id() . '/translations');
@@ -123,7 +123,7 @@ class PrivateFileOnTranslatedEntityTest extends FileFieldTestBase {
     $french_node = $default_language_node->getTranslation('fr');
     $node_file = File::load($french_node->{$this->fieldName}->target_id);
     $this->drupalGet(file_create_url($node_file->getFileUri()));
-    $this->assertResponse(200, 'Confirmed that the file attached to the French node can be downloaded.');
+    $this->assertResponse(200);
   }
 
 }

core/modules/file/tests/src/Functional/SaveUploadFormTest.php

@@ -86,7 +86,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'files[file_test_upload][]' => $file_system->realpath($this->image->getFileUri()),
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
     // Check that the correct hooks were called then clean out the hook
@@ -115,7 +115,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
     $file_system = \Drupal::service('file_system');
     $edit = ['files[file_test_upload][]' => $file_system->realpath($image2->uri)];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'));
     $max_fid_after = (int) \Drupal::entityQueryAggregate('file')->aggregate('fid', 'max')->execute()[0]['fid_max'];
 
@@ -141,7 +141,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'file_subdir' => $dir,
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'));
     $this->assertFileExists('temporary://' . $dir . '/' . trim(\Drupal::service('file_system')->basename($image3_realpath)));
   }
@@ -164,7 +164,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
     ];
 
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $message = t('Only files with the following extensions are allowed:') . ' <em class="placeholder">' . $extensions . '</em>';
     $this->assertRaw($message, 'Cannot upload a disallowed extension');
     $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');
@@ -184,7 +184,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
     ];
 
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertNoRaw(t('Only files with the following extensions are allowed:'), 'Can upload an allowed extension.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
@@ -201,7 +201,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'allow_all_extensions' => TRUE,
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertNoRaw(t('Only files with the following extensions are allowed:'), 'Can upload any extension.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
@@ -226,7 +226,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
     ];
 
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $message = t('For security reasons, your upload has been renamed to') . ' <em class="placeholder">' . $this->phpfile->filename . '.txt' . '</em>';
     $this->assertRaw($message, 'Dangerous file was renamed.');
     $this->assertRaw(t('File MIME type is text/plain.'), "Dangerous file's MIME type was changed.");
@@ -242,7 +242,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
     file_test_reset();
 
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertNoRaw(t('For security reasons, your upload has been renamed'), 'Found no security message.');
     $this->assertRaw(t('File name is @filename', ['@filename' => $this->phpfile->filename]), 'Dangerous file was not renamed when insecure uploads is TRUE.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
@@ -278,7 +278,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
     $munged_filename .= '_.' . $this->imageExtension;
 
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('For security reasons, your upload has been renamed'), 'Found security message.');
     $this->assertRaw(t('File name is @filename', ['@filename' => $munged_filename]), 'File was successfully munged.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
@@ -296,7 +296,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
     ];
 
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertNoRaw(t('For security reasons, your upload has been renamed'), 'Found no security message.');
     $this->assertRaw(t('File name is @filename', ['@filename' => $this->image->getFilename()]), 'File was not munged when allowing any extension.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
@@ -316,7 +316,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'files[file_test_upload][]' => $file_system->realpath($this->image->getFileUri()),
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
     // Check that the correct hooks were called.
@@ -334,7 +334,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'files[file_test_upload][]' => $file_system->realpath($this->image->getFileUri()),
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
     // Check that the correct hooks were called.
@@ -352,7 +352,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'files[file_test_upload][]' => $file_system->realpath($this->image->getFileUri()),
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');
 
     // Check that the no hooks were called while failing.
@@ -385,7 +385,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
 
     \Drupal::state()->set('file_test.disable_error_collection', TRUE);
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('File upload error. Could not move uploaded file.'), 'Found the failure message.');
     $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');
 
@@ -411,7 +411,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'error_message' => $error,
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
     // Ensure the expected error message is present and the counts before and
@@ -427,7 +427,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'extensions' => 'foo',
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');
 
     // Ensure the expected error message is present and the counts before and
@@ -441,7 +441,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'files[file_test_upload][]' => $file_system->realpath($this->image->getFileUri()),
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
     // Ensure the error message is not present and the counts before and after
@@ -475,8 +475,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
     $files['files']['file_test_upload'][0] = $file_system->realpath($this->phpfile->uri);
     $files['files']['file_test_upload'][1] = $file_system->realpath($textfile->uri);
     $client->request($form->getMethod(), $form->getUri(), $edit, $files);
-
+    $this->assertResponse(200);
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
     $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');
 
     // Search for combined error message followed by a formatted list of messages.
@@ -496,7 +495,7 @@ class SaveUploadFormTest extends FileManagedTestBase {
       'extensions' => 'foo',
     ];
     $this->drupalPostForm('file-test/save_upload_from_form_test', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');
     $this->assertCount(1, $this->cssSelect('input[name="files[file_test_upload][]"].error'), 'File upload field has error.');
   }

core/modules/file/tests/src/Functional/SaveUploadTest.php

@@ -81,7 +81,7 @@ class SaveUploadTest extends FileManagedTestBase {
       'files[file_test_upload]' => \Drupal::service('file_system')->realpath($this->image->getFileUri()),
     ];
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
     // Check that the correct hooks were called then clean out the hook
@@ -108,7 +108,7 @@ class SaveUploadTest extends FileManagedTestBase {
     $image2 = current($this->drupalGetTestFiles('image'));
     $edit = ['files[file_test_upload]' => \Drupal::service('file_system')->realpath($image2->uri)];
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'));
     $max_fid_after = (int) \Drupal::entityQueryAggregate('file')->aggregate('fid', 'max')->execute()[0]['fid_max'];
 
@@ -134,7 +134,7 @@ class SaveUploadTest extends FileManagedTestBase {
       'file_subdir' => $dir,
     ];
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'));
     $this->assertFileExists('temporary://' . $dir . '/' . trim(\Drupal::service('file_system')->basename($image3_realpath)));
   }
@@ -184,7 +184,7 @@ class SaveUploadTest extends FileManagedTestBase {
     ];
 
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $message = t('Only files with the following extensions are allowed:') . ' <em class="placeholder">' . $extensions . '</em>';
     $this->assertRaw($message, 'Cannot upload a disallowed extension');
     $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');
@@ -204,7 +204,7 @@ class SaveUploadTest extends FileManagedTestBase {
     ];
 
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertNoRaw(t('Only files with the following extensions are allowed:'), 'Can upload an allowed extension.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
@@ -221,7 +221,7 @@ class SaveUploadTest extends FileManagedTestBase {
       'allow_all_extensions' => TRUE,
     ];
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertNoRaw(t('Only files with the following extensions are allowed:'), 'Can upload any extension.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
 
@@ -244,7 +244,7 @@ class SaveUploadTest extends FileManagedTestBase {
     ];
 
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $message = t('For security reasons, your upload has been renamed to') . ' <em class="placeholder">' . $this->phpfile->filename . '.txt' . '</em>';
     $this->assertRaw($message, 'Dangerous file was renamed.');
     $this->assertSession()->pageTextContains('File name is php-2.php.txt.');
@@ -261,7 +261,7 @@ class SaveUploadTest extends FileManagedTestBase {
     file_test_reset();
 
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertNoRaw(t('For security reasons, your upload has been renamed'), 'Found no security message.');
     $this->assertSession()->pageTextContains('File name is php-2.php.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
@@ -295,7 +295,7 @@ class SaveUploadTest extends FileManagedTestBase {
     $munged_filename .= '_.' . $this->imageExtension;
 
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('For security reasons, your upload has been renamed'), 'Found security message.');
     $this->assertRaw(t('File name is @filename', ['@filename' => $munged_filename]), 'File was successfully munged.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
@@ -313,7 +313,7 @@ class SaveUploadTest extends FileManagedTestBase {
     ];
 
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertNoRaw(t('For security reasons, your upload has been renamed'), 'Found no security message.');
     $this->assertRaw(t('File name is @filename', ['@filename' => $this->image->getFilename()]), 'File was not munged when allowing any extension.');
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
@@ -331,7 +331,7 @@ class SaveUploadTest extends FileManagedTestBase {
       'files[file_test_upload]' => \Drupal::service('file_system')->realpath($this->image->getFileUri()),
     ];
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
     $this->assertSession()->pageTextContains('File name is image-test_0.png.');
 
@@ -348,7 +348,7 @@ class SaveUploadTest extends FileManagedTestBase {
       'files[file_test_upload]' => \Drupal::service('file_system')->realpath($this->image->getFileUri()),
     ];
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
     $this->assertSession()->pageTextContains('File name is image-test.png.');
 
@@ -365,7 +365,7 @@ class SaveUploadTest extends FileManagedTestBase {
       'files[file_test_upload]' => \Drupal::service('file_system')->realpath($this->image->getFileUri()),
     ];
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');
 
     // Check that the no hooks were called while failing.
@@ -398,7 +398,7 @@ class SaveUploadTest extends FileManagedTestBase {
 
     \Drupal::state()->set('file_test.disable_error_collection', TRUE);
     $this->drupalPostForm('file-test/upload', $edit, t('Submit'));
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('File upload error. Could not move uploaded file.'), 'Found the failure message.');
     $this->assertRaw(t('Epic upload FAIL!'), 'Found the failure message.');
 

core/modules/filter/tests/src/Functional/FilterAdminTest.php

@@ -163,7 +163,7 @@ class FilterAdminTest extends BrowserTestBase {
 
     // Verify that disabled text format no longer exists.
     $this->drupalGet('admin/config/content/formats/manage/' . $format_id);
-    $this->assertResponse(404, 'Disabled text format no longer exists.');
+    $this->assertResponse(404);
 
     // Attempt to create a format of the same machine name as the disabled
     // format but with a different human readable name.
@@ -203,7 +203,7 @@ class FilterAdminTest extends BrowserTestBase {
     $this->drupalGet('admin/config/content/formats');
     $this->assertNoRaw('admin/config/content/formats/manage/' . $plain . '/disable', 'Disable link for the fallback format not found.');
     $this->drupalGet('admin/config/content/formats/manage/' . $plain . '/disable');
-    $this->assertResponse(403, 'The fallback format cannot be disabled.');
+    $this->assertResponse(403);
 
     // Verify access permissions to Full HTML format.
     $full_format = FilterFormat::load($full);

core/modules/forum/tests/src/Functional/ForumTest.php

@@ -491,7 +491,7 @@ class ForumTest extends BrowserTestBase {
 
     // Assert that the forum no longer exists.
     $this->drupalGet('forum/' . $tid);
-    $this->assertResponse(404, 'The forum was not found');
+    $this->assertResponse(404);
   }
 
   /**

core/modules/help/tests/src/Functional/NoHelpTest.php

@@ -47,8 +47,10 @@ class NoHelpTest extends BrowserTestBase {
     $this->assertFalse(\Drupal::moduleHandler()->implementsHook('menu_test', 'help'), 'The menu_test module does not implement hook_help');
     $this->assertNoText(\Drupal::moduleHandler()->getName('menu_test'), 'Making sure the test module menu_test does not display a help link on admin/help.');
 
+    // Ensure that the module overview help page for a module that does not
+    // implement hook_help() results in a 404.
     $this->drupalGet('admin/help/menu_test');
-    $this->assertResponse(404, 'Getting a module overview help page for a module that does not implement hook_help() results in a 404.');
+    $this->assertResponse(404);
   }
 
 }

core/modules/image/tests/src/Functional/ImageAdminStylesTest.php

@@ -217,7 +217,6 @@ class ImageAdminStylesTest extends ImageFieldTestBase {
     // Check that the URL was updated.
     $this->drupalGet($style_path);
     $this->assertTitle(t('Edit style @name | Drupal', ['@name' => $style_label]));
-    $this->assertResponse(200, new FormattableMarkup('Image style %original renamed to %new', ['%original' => $style->id(), '%new' => $style_name]));
 
     // Check that the available image effects are properly sorted.
     $option = $this->xpath('//select[@id=:id]//option', [':id' => 'edit-new--2']);

core/modules/image/tests/src/Functional/ImageDimensionsTest.php

@@ -80,7 +80,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" width="120" height="60" alt="" class="image-style-test" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     $image_file = $image_factory->get($generated_uri);
     $this->assertEqual($image_file->getWidth(), 120);
@@ -101,7 +101,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" width="60" height="120" alt="" class="image-style-test" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     $image_file = $image_factory->get($generated_uri);
     $this->assertEqual($image_file->getWidth(), 60);
@@ -123,7 +123,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" width="45" height="90" alt="" class="image-style-test" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     $image_file = $image_factory->get($generated_uri);
     $this->assertEqual($image_file->getWidth(), 45);
@@ -145,7 +145,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" width="45" height="90" alt="" class="image-style-test" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     $image_file = $image_factory->get($generated_uri);
     $this->assertEqual($image_file->getWidth(), 45);
@@ -163,7 +163,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" width="45" height="90" alt="" class="image-style-test" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     $image_file = $image_factory->get($generated_uri);
     $this->assertEqual($image_file->getWidth(), 45);
@@ -184,7 +184,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" alt="" class="image-style-test" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
 
     // Add a crop effect.
@@ -203,7 +203,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" width="30" height="30" alt="" class="image-style-test" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     $image_file = $image_factory->get($generated_uri);
     $this->assertEqual($image_file->getWidth(), 30);
@@ -226,7 +226,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     // $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" width="41" height="41" alt="" class="image-style-test" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     $image_file = $image_factory->get($generated_uri);
     // @todo Uncomment this once
@@ -270,7 +270,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" width="100" height="100" alt="" class="image-style-test-uri" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     $image_file = $image_factory->get($generated_uri);
     $this->assertEqual($image_file->getWidth(), 100);
@@ -284,7 +284,7 @@ class ImageDimensionsTest extends BrowserTestBase {
     $this->assertEqual($this->getImageTag($variables), '<img src="' . $url . '" width="50" height="50" alt="" class="image-style-test-uri" />');
     $this->assertFileNotExists($generated_uri);
     $this->drupalGet($this->getAbsoluteUrl($url));
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     $image_file = $image_factory->get($generated_uri);
     $this->assertEqual($image_file->getWidth(), 50);

core/modules/image/tests/src/Functional/ImageFieldDisplayTest.php

@@ -152,10 +152,10 @@ class ImageFieldDisplayTest extends ImageFieldTestBase {
       $this->assertEqual($this->drupalGetHeader('Content-Type'), 'image/png', 'Content-Type header was sent.');
       $this->assertTrue(strstr($this->drupalGetHeader('Cache-Control'), 'private') !== FALSE, 'Cache-Control header was sent.');
 
-      // Log out and try to access the file.
+      // Log out and ensure the file cannot be accessed.
       $this->drupalLogout();
       $this->drupalGet(file_create_url($image_uri));
-      $this->assertResponse('403', 'Access denied to original image as anonymous user.');
+      $this->assertResponse(403);
 
       // Log in again.
       $this->drupalLogin($this->adminUser);
@@ -211,10 +211,10 @@ class ImageFieldDisplayTest extends ImageFieldTestBase {
     $this->assertRaw($default_output, 'Image style thumbnail formatter displaying correctly on full node view.');
 
     if ($scheme == 'private') {
-      // Log out and try to access the file.
+      // Log out and ensure the file cannot be accessed.
       $this->drupalLogout();
       $this->drupalGet(ImageStyle::load('thumbnail')->buildUrl($image_uri));
-      $this->assertResponse('403', 'Access denied to image style thumbnail as anonymous user.');
+      $this->assertResponse(403);
     }
 
     // Test the image URL formatter without an image style.

core/modules/image/tests/src/Functional/ImageStylesPathAndUrlTest.php

@@ -126,7 +126,7 @@ class ImageStylesPathAndUrlTest extends BrowserTestBase {
     $non_existent_uri = 'public://foo.png';
     $generated_url = $this->style->buildUrl($non_existent_uri);
     $this->drupalGet($generated_url);
-    $this->assertResponse(404, 'Accessing an image style URL with a source image that does not exist provides a 404 error response.');
+    $this->assertResponse(404);
   }
 
   /**
@@ -185,10 +185,10 @@ class ImageStylesPathAndUrlTest extends BrowserTestBase {
     }
     // Add some extra chars to the token.
     $this->drupalGet(str_replace(IMAGE_DERIVATIVE_TOKEN . '=', IMAGE_DERIVATIVE_TOKEN . '=Zo', $generate_url));
-    $this->assertResponse(404, 'Image was inaccessible at the URL with an invalid token.');
+    $this->assertResponse(404);
     // Change the parameter name so the token is missing.
     $this->drupalGet(str_replace(IMAGE_DERIVATIVE_TOKEN . '=', 'wrongparam=', $generate_url));
-    $this->assertResponse(404, 'Image was inaccessible at the URL with a missing token.');
+    $this->assertResponse(404);
 
     // Check that the generated URL is the same when we pass in a relative path
     // rather than a URI. We need to temporarily switch the default scheme to
@@ -202,7 +202,7 @@ class ImageStylesPathAndUrlTest extends BrowserTestBase {
 
     // Fetch the URL that generates the file.
     $this->drupalGet($generate_url);
-    $this->assertResponse(200, 'Image was generated at the URL.');
+    $this->assertResponse(200);
     $this->assertFileExists($generated_uri);
     // assertRaw can't be used with string containing non UTF-8 chars.
     $this->assertNotEmpty(file_get_contents($generated_uri), 'URL returns expected file.');
@@ -224,7 +224,7 @@ class ImageStylesPathAndUrlTest extends BrowserTestBase {
       // Make sure that a second request to the already existing derivative
       // works too.
       $this->drupalGet($generate_url);
-      $this->assertResponse(200, 'Image was generated at the URL.');
+      $this->assertResponse(200);
 
       // Check that the second request also returned the generated image.
       $this->assertEqual($this->drupalGetHeader('Content-Length'), $image->getFileSize());
@@ -236,7 +236,7 @@ class ImageStylesPathAndUrlTest extends BrowserTestBase {
       // have access.
       \Drupal::state()->delete('image.test_file_download');
       $this->drupalGet($generate_url);
-      $this->assertResponse(403, 'Confirmed that access is denied for the private image style.');
+      $this->assertResponse(403);
 
       // Repeat this with a different file that we do not have access to and
       // make sure that access is denied.
@@ -247,7 +247,7 @@ class ImageStylesPathAndUrlTest extends BrowserTestBase {
       $generate_url_noaccess = $this->style->buildUrl($original_uri_noaccess);
 
       $this->drupalGet($generate_url_noaccess);
-      $this->assertResponse(403, 'Confirmed that access is denied for the private image style.');
+      $this->assertResponse(403);
       // Verify that images are not appended to the response.
       // Currently this test only uses PNG images.
       if (strpos($generate_url, '.png') === FALSE) {
@@ -268,7 +268,7 @@ class ImageStylesPathAndUrlTest extends BrowserTestBase {
       if ($clean_url) {
         // Add some extra chars to the token.
         $this->drupalGet(str_replace(IMAGE_DERIVATIVE_TOKEN . '=', IMAGE_DERIVATIVE_TOKEN . '=Zo', $generate_url));
-        $this->assertResponse(200, 'Existing image was accessible at the URL with an invalid token.');
+        $this->assertResponse(200);
       }
     }
 
@@ -295,7 +295,7 @@ class ImageStylesPathAndUrlTest extends BrowserTestBase {
     $generate_url = $this->style->buildUrl($original_uri, $clean_url);
     $this->assertStringNotContainsString(IMAGE_DERIVATIVE_TOKEN . '=', $generate_url, 'The security token does not appear in the image style URL.');
     $this->drupalGet($generate_url);
-    $this->assertResponse(200, 'Image was accessible at the URL with a missing token.');
+    $this->assertResponse(200);
 
     // Stop suppressing the security token in the URL.
     $this->config('image.settings')->set('suppress_itok_output', FALSE)->save();
@@ -309,16 +309,16 @@ class ImageStylesPathAndUrlTest extends BrowserTestBase {
     $this->assertTrue($matches_expected_url_format, "URL for a derivative of an image style matches expected format.");
     $nested_url_with_wrong_token = str_replace(IMAGE_DERIVATIVE_TOKEN . '=', 'wrongparam=', $nested_url);
     $this->drupalGet($nested_url_with_wrong_token);
-    $this->assertResponse(404, 'Image generated from an earlier derivative was inaccessible at the URL with a missing token.');
+    $this->assertResponse(404);
     // Check that this restriction cannot be bypassed by adding extra slashes
     // to the URL.
     $this->drupalGet(substr_replace($nested_url_with_wrong_token, '//styles/', strrpos($nested_url_with_wrong_token, '/styles/'), strlen('/styles/')));
-    $this->assertResponse(404, 'Image generated from an earlier derivative was inaccessible at the URL with a missing token, even with an extra forward slash in the URL.');
+    $this->assertResponse(404);
     $this->drupalGet(substr_replace($nested_url_with_wrong_token, '////styles/', strrpos($nested_url_with_wrong_token, '/styles/'), strlen('/styles/')));
-    $this->assertResponse(404, 'Image generated from an earlier derivative was inaccessible at the URL with a missing token, even with multiple forward slashes in the URL.');
+    $this->assertResponse(404);
     // Make sure the image can still be generated if a correct token is used.
     $this->drupalGet($nested_url);
-    $this->assertResponse(200, 'Image was accessible when a correct token was provided in the URL.');
+    $this->assertResponse(200);
 
     // Check that requesting a nonexistent image does not create any new
     // directories in the file system.

core/modules/image/tests/src/Functional/QuickEditImageControllerTest.php

@@ -86,7 +86,7 @@ class QuickEditImageControllerTest extends BrowserTestBase {
       'title' => t('Test Node'),
     ]);
     $this->drupalGet('quickedit/image/info/node/' . $node->id() . '/' . $this->fieldName . '/' . $node->language()->getId() . '/default');
-    $this->assertResponse('403');
+    $this->assertResponse(403);
 
     /** @var \Symfony\Component\BrowserKit\Client $client */
     $client = $this->getSession()->getDriver()->getClient();

core/modules/language/tests/src/Functional/LanguageListTest.php

@@ -88,7 +88,7 @@ class LanguageListTest extends BrowserTestBase {
 
     // Ensure we can't delete the default language.
     $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
-    $this->assertResponse(403, 'Failed to delete the default language.');
+    $this->assertResponse(403);
 
     // Ensure 'Edit' link works.
     $this->drupalGet('admin/config/regional/language');
@@ -128,7 +128,7 @@ class LanguageListTest extends BrowserTestBase {
     $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], ['absolute' => TRUE, 'language' => $english])->toString());
     // Verify that language is no longer found.
     $this->drupalGet('admin/config/regional/language/delete/' . $langcode);
-    $this->assertResponse(404, 'Language no longer found.');
+    $this->assertResponse(404);
 
     // Delete French.
     $this->drupalPostForm('admin/config/regional/language/delete/fr', [], t('Delete'));
@@ -140,7 +140,7 @@ class LanguageListTest extends BrowserTestBase {
     $this->assertUrl(Url::fromRoute('entity.configurable_language.collection', [], ['absolute' => TRUE])->toString());
     // Verify that language is no longer found.
     $this->drupalGet('admin/config/regional/language/delete/fr');
-    $this->assertResponse(404, 'Language no longer found.');
+    $this->assertResponse(404);
     // Make sure the "language_count" state has not changed.
 
     // Ensure we can delete the English language. Right now English is the only
@@ -179,7 +179,7 @@ class LanguageListTest extends BrowserTestBase {
 
     // Ensure we can't delete a locked language.
     $this->drupalGet('admin/config/regional/language/delete/und');
-    $this->assertResponse(403, 'Can not delete locked language');
+    $this->assertResponse(403);
 
     // Ensure that NL cannot be set default when it's not available.
     // First create the NL language.

core/modules/language/tests/src/Functional/LanguagePathMonolingualTest.php

@@ -71,7 +71,7 @@ class LanguagePathMonolingualTest extends BrowserTestBase {
 
     // Verify that links in this page can be followed and work.
     $this->clickLink(t('Languages'));
-    $this->assertResponse(200, 'Clicked link results in a valid page');
+    $this->assertResponse(200);
     $this->assertText(t('Add language'), 'Page contains the add language text');
   }
 

core/modules/language/tests/src/Functional/LanguageUILanguageNegotiationTest.php

@@ -257,7 +257,7 @@ class LanguageUILanguageNegotiationTest extends BrowserTestBase {
       ->set('negotiation.' . LanguageInterface::TYPE_INTERFACE . '.enabled', array_flip(array_keys($language_interface_method_definitions)))
       ->save();
     $this->drupalGet("$langcode_unknown/admin/config", [], $http_header_browser_fallback);
-    $this->assertResponse(404, "Unknown language path prefix should return 404");
+    $this->assertResponse(404);
 
     // Set preferred langcode for user to NULL.
     $account = $this->loggedInUser;

core/modules/language/tests/src/Functional/LanguageUrlRewritingTest.php

@@ -62,7 +62,7 @@ class LanguageUrlRewritingTest extends BrowserTestBase {
   public function testUrlRewritingEdgeCases() {
     // Check URL rewriting with a non-installed language.
     $non_existing = new Language(['id' => $this->randomMachineName()]);
-    $this->checkUrl($non_existing, 'Path language is ignored if language is not installed.', 'URL language negotiation does not work with non-installed languages');
+    $this->checkUrl($non_existing, 'Path language is ignored if language is not installed.');
 
     // Check that URL rewriting is not applied to subrequests.
     $this->drupalGet('language_test/subrequest');
@@ -78,12 +78,10 @@ class LanguageUrlRewritingTest extends BrowserTestBase {
    *
    * @param \Drupal\Core\Language\LanguageInterface $language
    *   The language object.
-   * @param string $message1
+   * @param string $message
    *   Message to display in assertion that language prefixes are not added.
-   * @param string $message2
-   *   The message to display confirming prefixed URL is not working.
    */
-  private function checkUrl(LanguageInterface $language, $message1, $message2) {
+  private function checkUrl(LanguageInterface $language, $message) {
     $options = ['language' => $language, 'script' => ''];
     $base_path = trim(base_path(), '/');
     $rewritten_path = trim(str_replace($base_path, '', Url::fromRoute('<front>', [], $options)->toString()), '/');
@@ -95,11 +93,11 @@ class LanguageUrlRewritingTest extends BrowserTestBase {
     // we can always check the prefixed URL.
     $prefixes = $this->config('language.negotiation')->get('url.prefixes');
     $stored_prefix = isset($prefixes[$language->getId()]) ? $prefixes[$language->getId()] : $this->randomMachineName();
-    $this->assertNotEqual($stored_prefix, $prefix, $message1);
+    $this->assertNotEqual($stored_prefix, $prefix, $message);
     $prefix = $stored_prefix;
 
     $this->drupalGet("$prefix/$path");
-    $this->assertResponse(404, $message2);
+    $this->assertResponse(404);
   }
 
   /**

core/modules/locale/tests/src/Functional/LocaleTranslationUiTest.php

@@ -182,7 +182,7 @@ class LocaleTranslationUiTest extends BrowserTestBase {
     // Reload to remove $name.
     $this->drupalGet($path);
     // Verify that language is no longer found.
-    $this->assertResponse(404, 'Language no longer found.');
+    $this->assertResponse(404);
     $this->drupalLogout();
 
     // Delete the string.

core/modules/node/tests/src/Functional/NodeTypeTest.php

@@ -64,7 +64,7 @@ class NodeTypeTest extends NodeTestBase {
     $this->drupalLogin($web_user);
 
     $this->drupalGet('node/add/' . $type->id());
-    $this->assertResponse(200, 'The new content type can be accessed at node/add.');
+    $this->assertResponse(200);
 
     // Create a content type via the user interface.
     $web_user = $this->drupalCreateUser(['bypass node access', 'administer content types']);

core/modules/node/tests/src/Functional/Views/RevisionLinkTest.php

@@ -48,7 +48,7 @@ class RevisionLinkTest extends NodeTestBase {
     $second_revision = $nodes[1]->getRevisionId();
 
     $this->drupalGet('test-node-revision-links');
-    $this->assertResponse(200, 'Test view can be accessed in the path expected');
+    $this->assertResponse(200);
     // The first node revision should link to the node directly as you get an
     // access denied if you link to the revision.
     $url = $nodes[0]->toUrl()->toString();

core/modules/page_cache/tests/src/Functional/PageCacheTest.php

@@ -201,38 +201,47 @@ class PageCacheTest extends BrowserTestBase {
     $etag = $this->drupalGetHeader('ETag');
     $last_modified = $this->drupalGetHeader('Last-Modified');
 
+    // Ensure a conditional request returns 304 Not Modified.
     $this->drupalGet('', [], ['If-Modified-Since' => $last_modified, 'If-None-Match' => $etag]);
-    $this->assertResponse(304, 'Conditional request returned 304 Not Modified.');
+    $this->assertResponse(304);
 
+    // Ensure a conditional request with obsolete If-Modified-Since date
+    // returns 304 Not Modified.
     $this->drupalGet('', [], [
       'If-Modified-Since' => gmdate(DATE_RFC822, strtotime($last_modified)),
       'If-None-Match' => $etag,
     ]);
-    $this->assertResponse(304, 'Conditional request with obsolete If-Modified-Since date returned 304 Not Modified.');
+    $this->assertResponse(304);
 
+    // Ensure a conditional request with obsolete If-Modified-Since date
+    // returns 304 Not Modified.
     $this->drupalGet('', [], [
       'If-Modified-Since' => gmdate(DATE_RFC850, strtotime($last_modified)),
       'If-None-Match' => $etag,
     ]);
-    $this->assertResponse(304, 'Conditional request with obsolete If-Modified-Since date returned 304 Not Modified.');
+    $this->assertResponse(304);
 
+    // Ensure a conditional request without If-None-Match returns 200 OK.
     $this->drupalGet('', [], ['If-Modified-Since' => $last_modified, 'If-None-Match' => NULL]);
     // Verify the page is not printed twice when the cache is warm.
     $this->assertSession()->responseNotMatches('#<html.*<html#');
-    $this->assertResponse(200, 'Conditional request without If-None-Match returned 200 OK.');
+    $this->assertResponse(200);
     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
 
+    // Ensure a conditional request with If-Modified-Since newer than
+    // Last-Modified returns 200 OK.
     $this->drupalGet('', [], [
       'If-Modified-Since' => gmdate(DateTimePlus::RFC7231, strtotime($last_modified) + 1),
       'If-None-Match' => $etag,
     ]);
-    $this->assertResponse(200, 'Conditional request with new a If-Modified-Since date newer than Last-Modified returned 200 OK.');
+    $this->assertResponse(200);
     $this->assertEqual($this->drupalGetHeader('X-Drupal-Cache'), 'HIT', 'Page was cached.');
 
+    // Ensure a conditional request by an authenticated user returns 200 OK.
     $user = $this->drupalCreateUser();
     $this->drupalLogin($user);
     $this->drupalGet('', [], ['If-Modified-Since' => $last_modified, 'If-None-Match' => $etag]);
-    $this->assertResponse(200, 'Conditional request returned 200 OK for authenticated user.');
+    $this->assertResponse(200);
     $this->assertNull($this->drupalGetHeader('X-Drupal-Cache'), 'Absence of Page was not cached.');
   }
 

core/modules/path/tests/src/Functional/PathLanguageTest.php

@@ -173,7 +173,7 @@ class PathLanguageTest extends PathTestBase {
     // situation only aliases in the default language and language neutral ones
     // should keep working.
     $this->drupalGet($french_alias);
-    $this->assertResponse(404, 'Alias for French translation is unavailable when URL language negotiation is disabled.');
+    $this->assertResponse(404);
 
     // The alias manager has an internal path lookup cache. Check to see that
     // it has the appropriate contents at this point.

core/modules/path/tests/src/Functional/PathTaxonomyTermTest.php

@@ -76,7 +76,7 @@ class PathTaxonomyTermTest extends PathTestBase {
     // Confirm that the old alias no longer works.
     $this->drupalGet(trim($edit['path[0][alias]'], '/'));
     $this->assertNoText($description, 'Old URL alias has been removed after altering.');
-    $this->assertResponse(404, 'Old URL alias returns 404.');
+    $this->assertResponse(404);
 
     // Remove the term's URL alias.
     $edit3 = [];
@@ -86,7 +86,7 @@ class PathTaxonomyTermTest extends PathTestBase {
     // Confirm that the alias no longer works.
     $this->drupalGet(trim($edit2['path[0][alias]'], '/'));
     $this->assertNoText($description, 'Old URL alias has been removed after altering.');
-    $this->assertResponse(404, 'Old URL alias returns 404.');
+    $this->assertResponse(404);
   }
 
 }

core/modules/path_alias/tests/src/Functional/UrlAlterFunctionalTest.php

@@ -47,7 +47,7 @@ class UrlAlterFunctionalTest extends BrowserTestBase {
 
     // Test a single altered path.
     $this->drupalGet("user/$name");
-    $this->assertResponse('200', 'The user/username path gets resolved correctly');
+    $this->assertResponse(200);
     $this->assertUrlOutboundAlter("/user/$uid", "/user/$name");
 
     // Test that a path always uses its alias.
@@ -61,7 +61,7 @@ class UrlAlterFunctionalTest extends BrowserTestBase {
     $this->drupalPostForm('admin/config/search/path/add', $edit, t('Save'));
     $this->assertText(t('The alias has been saved.'));
     $this->drupalGet('alias/test2');
-    $this->assertResponse('200', 'The path alias gets resolved correctly');
+    $this->assertResponse(200);
     $this->assertUrlOutboundAlter("/user/$uid/edit", '/alias/test2');
 
     // Test a non-existent user is not altered.

core/modules/responsive_image/tests/src/Functional/ResponsiveImageFieldDisplayTest.php

@@ -268,10 +268,10 @@ class ResponsiveImageFieldDisplayTest extends ImageFieldTestBase {
       $this->assertEqual($this->drupalGetHeader('Content-Type'), 'image/png', 'Content-Type header was sent.');
       $this->assertTrue(strstr($this->drupalGetHeader('Cache-Control'), 'private') !== FALSE, 'Cache-Control header was sent.');
 
-      // Log out and try to access the file.
+      // Log out and ensure the file cannot be accessed.
       $this->drupalLogout();
       $this->drupalGet(file_create_url($image_uri));
-      $this->assertResponse('403', 'Access denied to original image as anonymous user.');
+      $this->assertResponse(403);
 
       // Log in again.
       $this->drupalLogin($this->adminUser);
@@ -334,10 +334,10 @@ class ResponsiveImageFieldDisplayTest extends ImageFieldTestBase {
     $this->assertRaw($default_output, 'Image style large formatter displaying correctly on full node view.');
 
     if ($scheme == 'private') {
-      // Log out and try to access the file.
+      // Log out and ensure the file cannot be accessed.
       $this->drupalLogout();
       $this->drupalGet($large_style->buildUrl($image_uri));
-      $this->assertResponse('403', 'Access denied to image style large as anonymous user.');
+      $this->assertResponse(403);
       $cache_tags_header = $this->drupalGetHeader('X-Drupal-Cache-Tags');
       $this->assertTrue(!preg_match('/ image_style\:/', $cache_tags_header), 'No image style cache tag found.');
     }

core/modules/rest/tests/src/Functional/ResourceTest.php

@@ -83,7 +83,7 @@ class ResourceTest extends BrowserTestBase {
     // means there's always a match and hence when there is no matching REST
     // route, the non-REST route is used, but can't render into
     // application/hal+json, so it returns a 406.
-    $this->assertResponse('406', 'HTTP response code is 406 when the resource does not define formats, because it falls back to the canonical, non-REST route.');
+    $this->assertResponse(406);
   }
 
   /**
@@ -109,7 +109,7 @@ class ResourceTest extends BrowserTestBase {
     // means there's always a match and hence when there is no matching REST
     // route, the non-REST route is used, but can't render into
     // application/hal+json, so it returns a 406.
-    $this->assertResponse('406', 'HTTP response code is 406 when the resource does not define formats, because it falls back to the canonical, non-REST route.');
+    $this->assertResponse(406);
   }
 
   /**

core/modules/rest/tests/src/Functional/Views/StyleSerializerTest.php

@@ -383,23 +383,23 @@ class StyleSerializerTest extends ViewTestBase {
 
     $style_options = 'admin/structure/views/nojs/display/test_serializer_display_field/rest_export_1/style_options';
 
-    // Test with no format.
+    // Ensure a request with no format returns 406 Not Acceptable.
     $this->drupalGet('test/serialize/field');
     $this->assertHeader('content-type', 'text/html; charset=UTF-8');
-    $this->assertResponse(406, 'A 406 response was returned when no format was requested.');
+    $this->assertResponse(406);
 
     // Select only 'xml' as an accepted format.
     $this->drupalPostForm($style_options, ['style_options[formats][xml]' => 'xml'], t('Apply'));
     $this->drupalPostForm(NULL, [], t('Save'));
 
-    // Should return a 406.
+    // Ensure a request for JSON returns 406 Not Acceptable.
     $this->drupalGet('test/serialize/field', ['query' => ['_format' => 'json']]);
     $this->assertHeader('content-type', 'application/json');
-    $this->assertResponse(406, 'A 406 response was returned when JSON was requested.');
+    $this->assertResponse(406);
-    // Should return a 200.
+    // Ensure a request for XML returns 200 OK.
     $this->drupalGet('test/serialize/field', ['query' => ['_format' => 'xml']]);
     $this->assertHeader('content-type', 'text/xml; charset=UTF-8');
-    $this->assertResponse(200, 'A 200 response was returned when XML was requested.');
+    $this->assertResponse(200);
 
     // Add 'json' as an accepted format, so we have multiple.
     $this->drupalPostForm($style_options, ['style_options[formats][json]' => 'json'], t('Apply'));
@@ -408,39 +408,40 @@ class StyleSerializerTest extends ViewTestBase {
     // Should return a 406. Emulates a sample Firefox header.
     $this->drupalGet('test/serialize/field', [], ['Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8']);
     $this->assertHeader('content-type', 'text/html; charset=UTF-8');
-    $this->assertResponse(406, 'A 406 response was returned when a browser accept header was requested.');
+    $this->assertResponse(406);
 
-    // Should return a 406.
+    // Ensure a request for HTML returns 406 Not Acceptable.
     $this->drupalGet('test/serialize/field', ['query' => ['_format' => 'html']]);
     $this->assertHeader('content-type', 'text/html; charset=UTF-8');
-    $this->assertResponse(406, 'A 406 response was returned when HTML was requested.');
+    $this->assertResponse(406);
 
-    // Should return a 200.
+    // Ensure a request for JSON returns 200 OK.
     $this->drupalGet('test/serialize/field', ['query' => ['_format' => 'json']]);
     $this->assertHeader('content-type', 'application/json');
-    $this->assertResponse(200, 'A 200 response was returned when JSON was requested.');
+    $this->assertResponse(200);
 
-    // Should return a 200.
+    // Ensure a request XML returns 200 OK.
     $this->drupalGet('test/serialize/field', ['query' => ['_format' => 'xml']]);
     $this->assertHeader('content-type', 'text/xml; charset=UTF-8');
-    $this->assertResponse(200, 'A 200 response was returned when XML was requested');
+    $this->assertResponse(200);
 
     // Now configure no format, so both serialization formats should be allowed.
     $this->drupalPostForm($style_options, ['style_options[formats][json]' => '0', 'style_options[formats][xml]' => '0'], t('Apply'));
 
-    // Should return a 200.
+    // Ensure a request for JSON returns 200 OK.
     $this->drupalGet('test/serialize/field', ['query' => ['_format' => 'json']]);
     $this->assertHeader('content-type', 'application/json');
-    $this->assertResponse(200, 'A 200 response was returned when JSON was requested.');
+    $this->assertResponse(200);
-    // Should return a 200.
+
+    // Ensure a request for XML returns 200 OK.
     $this->drupalGet('test/serialize/field', ['query' => ['_format' => 'xml']]);
     $this->assertHeader('content-type', 'text/xml; charset=UTF-8');
-    $this->assertResponse(200, 'A 200 response was returned when XML was requested');
+    $this->assertResponse(200);
 
     // Should return a 406 for HTML still.
     $this->drupalGet('test/serialize/field', ['query' => ['_format' => 'html']]);
     $this->assertHeader('content-type', 'text/html; charset=UTF-8');
-    $this->assertResponse(406, 'A 406 response was returned when HTML was requested.');
+    $this->assertResponse(406);
   }
 
   /**

core/modules/search/tests/src/Functional/SearchPageTextTest.php

@@ -157,13 +157,13 @@ class SearchPageTextTest extends BrowserTestBase {
     // Test that if you search for a URL with .. in it, you still end up at
     // the search page. See issue https://www.drupal.org/node/890058.
     $this->drupalPostForm('search/node', ['keys' => '../../admin'], t('Search'));
-    $this->assertResponse(200, 'Searching for ../../admin with non-admin user does not lead to a 403 error');
+    $this->assertResponse(200);
     $this->assertText('no results', 'Searching for ../../admin with non-admin user gives you a no search results page');
 
     // Test that if you search for a URL starting with "./", you still end up
     // at the search page. See issue https://www.drupal.org/node/1421560.
     $this->drupalPostForm('search/node', ['keys' => '.something'], t('Search'));
-    $this->assertResponse(200, 'Searching for .something does not lead to a 403 error');
+    $this->assertResponse(200);
     $this->assertText('no results', 'Searching for .something gives you a no search results page');
   }
 

core/modules/shortcut/tests/src/Functional/ShortcutLinksTest.php

@@ -406,17 +406,12 @@ class ShortcutLinksTest extends ShortcutTestBase {
 
     // Verify that set administration pages are inaccessible without the
     // 'access shortcuts' permission.
-    $edit_paths = [
+    $this->drupalGet('admin/config/user-interface/shortcut/manage/default/customize');
-      'admin/config/user-interface/shortcut/manage/default/customize',
+    $this->assertResponse(403);
-      'admin/config/user-interface/shortcut/manage/default',
+    $this->drupalGet('admin/config/user-interface/shortcut/manage/default');
-      'user/' . $noaccess_user->id() . '/shortcuts',
+    $this->assertResponse(403);
-    ];
+    $this->drupalGet('user/' . $noaccess_user->id() . '/shortcuts');
-
+    $this->assertResponse(403);
-    foreach ($edit_paths as $path) {
-      $this->drupalGet($path);
-      $message = new FormattableMarkup('Access is denied on %s', ['%s' => $path]);
-      $this->assertResponse(403, $message);
-    }
   }
 
   /**

core/modules/system/tests/src/Functional/Form/StateValuesCleanAdvancedTest.php

@@ -56,7 +56,7 @@ class StateValuesCleanAdvancedTest extends BrowserTestBase {
     $this->drupalPostForm('form_test/form-state-values-clean-advanced', $edit, t('Submit'));
 
     // Expecting a 200 HTTP code.
-    $this->assertResponse(200, 'Received a 200 response for posted test file.');
+    $this->assertResponse(200);
     $this->assertRaw(t('You WIN!'), 'Found the success message.');
   }
 

core/modules/system/tests/src/Functional/Module/InstallUninstallTest.php

@@ -354,7 +354,7 @@ class InstallUninstallTest extends ModuleTestBase {
    */
   protected function assertHelp($module, $name) {
     $this->drupalGet('admin/help/' . $module);
-    $this->assertResponse(200, "Help for $module displayed successfully");
+    $this->assertResponse(200);
     $this->assertText($name . ' module', "'$name module' is on the help page for $module");
     $this->assertLink('online documentation for the ' . $name . ' module', 0, "Correct online documentation link is in the help page for $module");
   }

core/modules/system/tests/src/Functional/Module/PrepareUninstallTest.php

@@ -151,9 +151,9 @@ class PrepareUninstallTest extends BrowserTestBase {
     $this->assertText('The selected modules have been uninstalled.');
     $this->assertNoText('Allows content to be submitted to the site and displayed on pages.');
 
-    // Ensure the proper response when accessing a non-existent entity type.
+    // Ensure a 404 is returned when accessing a non-existent entity type.
     $this->drupalGet('admin/modules/uninstall/entity/node');
-    $this->assertResponse(404, 'Entity types that do not exist result in a 404.');
+    $this->assertResponse(404);
 
     // Test an entity type which does not have any existing entities.
     $this->drupalGet('admin/modules/uninstall/entity/entity_test_no_label');

core/modules/system/tests/src/Functional/Routing/RouterPermissionTest.php

@@ -27,12 +27,13 @@ class RouterPermissionTest extends BrowserTestBase {
    * Tests permission requirements on routes.
    */
   public function testPermissionAccess() {
-    $path = 'router_test/test7';
+    // Ensure 403 Access Denied for a route without permission.
-    $this->drupalGet($path);
+    $this->drupalGet('router_test/test7');
-    $this->assertResponse(403, "Access denied for a route where we don't have a permission");
+    $this->assertResponse(403);
 
+    // Ensure 403 Access Denied by default if no access specified.
     $this->drupalGet('router_test/test8');
-    $this->assertResponse(403, 'Access denied by default if no access specified');
+    $this->assertResponse(403);
 
     $user = $this->drupalCreateUser(['access test7']);
     $this->drupalLogin($user);

core/modules/system/tests/src/Functional/Session/SessionAuthenticationTest.php

@@ -58,11 +58,11 @@ class SessionAuthenticationTest extends BrowserTestBase {
     // Test that the route is not accessible as an anonymous user.
     $this->drupalGet($protected_url);
     $session = $this->getSession();
-    $this->assertResponse(401, 'An anonymous user cannot access a route protected with basic authentication.');
+    $this->assertResponse(401);
 
     // We should be able to access the route with basic authentication.
     $this->basicAuthGet($protected_url, $this->user->getAccountName(), $this->user->passRaw);
-    $this->assertResponse(200, 'A route protected with basic authentication can be accessed by an authenticated user.');
+    $this->assertResponse(200);
 
     // Check that the correct user is logged in.
     $this->assertEqual($this->user->id(), json_decode($session->getPage()->getContent())->user, 'The correct user is authenticated on a route with basic authentication.');
@@ -71,13 +71,13 @@ class SessionAuthenticationTest extends BrowserTestBase {
     // If we now try to access a page without basic authentication then we
     // should no longer be logged in.
     $this->drupalGet($unprotected_url);
-    $this->assertResponse(200, 'An unprotected route can be accessed without basic authentication.');
+    $this->assertResponse(200);
     $this->assertEquals(0, json_decode($session->getPage()->getContent())->user, 'The user is no longer authenticated after visiting a page without basic authentication.');
 
     // If we access the protected page again without basic authentication we
     // should get 401 Unauthorized.
     $this->drupalGet($protected_url);
-    $this->assertResponse(401, 'A subsequent request to the same route without basic authentication is not authorized.');
+    $this->assertResponse(401);
   }
 
   /**
@@ -88,12 +88,12 @@ class SessionAuthenticationTest extends BrowserTestBase {
     $test_value = 'alpaca';
     $response = $this->basicAuthGet('session-test/set-session/' . $test_value, $this->user->getAccountName(), $this->user->pass_raw);
     $this->assertSessionData($response, $test_value);
-    $this->assertResponse(200, 'The request to set a session value was successful.');
+    $this->assertResponse(200);
 
     // Test that on a subsequent request the session value is still present.
     $response = $this->basicAuthGet('session-test/get-session', $this->user->getAccountName(), $this->user->pass_raw);
     $this->assertSessionData($response, $test_value);
-    $this->assertResponse(200, 'The request to get a session value was successful.');
+    $this->assertResponse(200);
   }
 
   /**
@@ -126,7 +126,7 @@ class SessionAuthenticationTest extends BrowserTestBase {
     // session cookie should be set, the third party system is responsible for
     // sustaining the session.
     $this->basicAuthGet($no_cookie_url, $this->user->getAccountName(), $this->user->passRaw);
-    $this->assertResponse(200, 'The user is successfully authenticated using basic authentication.');
+    $this->assertResponse(200);
     $this->assertEmpty($this->getSessionCookies());
     // Mink stores some information in the session that breaks the next check if
     // not reset.

core/modules/system/tests/src/Functional/Session/SessionTest.php

@@ -279,7 +279,7 @@ class SessionTest extends BrowserTestBase {
     $user = $this->drupalCreateUser([]);
     $this->drupalLogin($user);
     $this->drupalGet('session-test/is-logged-in');
-    $this->assertResponse(200, 'User is logged in.');
+    $this->assertResponse(200);
 
     // Reset the sid in {sessions} to a blank string. This may exist in the
     // wild in some cases, although we normally prevent it from happening.
@@ -292,37 +292,42 @@ class SessionTest extends BrowserTestBase {
     $this->assertRaw("session_id:\n", 'Session ID is blank as sent from cookie header.');
     // Assert that we have an anonymous session now.
     $this->drupalGet('session-test/is-logged-in');
-    $this->assertResponse(403, 'An empty session ID is not allowed.');
+    $this->assertResponse(403);
   }
 
   /**
    * Test session bag.
    */
   public function testSessionBag() {
+    // Ensure the flag is absent to start with.
     $this->drupalGet('/session-test/has-bag-flag');
     $this->assertSessionCookie(FALSE);
     $this->assertSessionEmpty(TRUE);
-    $this->assertResponse(200, 'Flag is absent from session bag');
+    $this->assertResponse(200);
 
+    // Set the flag.
     $this->drupalGet('/session-test/set-bag-flag');
     $this->assertSessionCookie(TRUE);
     $this->assertSessionEmpty(TRUE);
     $this->assertResponse(200);
 
+    // Ensure the flag is set.
     $this->drupalGet('/session-test/has-bag-flag');
     $this->assertSessionCookie(TRUE);
     $this->assertSessionEmpty(FALSE);
-    $this->assertResponse(200, 'Flag is present in session bag');
+    $this->assertResponse(200);
 
+    // Clear the flag.
     $this->drupalGet('/session-test/clear-bag-flag');
     $this->assertSessionCookie(FALSE);
     $this->assertSessionEmpty(FALSE);
     $this->assertResponse(200);
 
+    // Ensure the flag is absent again.
     $this->drupalGet('/session-test/has-bag-flag');
     $this->assertSessionCookie(FALSE);
     $this->assertSessionEmpty(TRUE);
-    $this->assertResponse(200, 'Flag is absent from session bag');
+    $this->assertResponse(200);
   }
 
   /**
@@ -335,7 +340,7 @@ class SessionTest extends BrowserTestBase {
 
     // Change cookie file for user.
     $this->drupalGet('session-test/get');
-    $this->assertResponse(200, 'Session test module is correctly enabled.', 'Session');
+    $this->assertResponse(200);
   }
 
   /**

core/modules/system/tests/src/Functional/System/AdminTest.php

@@ -157,7 +157,7 @@ class AdminTest extends BrowserTestBase {
     $frontpage_url = 'user/' . $this->adminUser->id();
 
     $this->drupalGet('admin/compact/on');
-    $this->assertResponse(200, 'A valid page is returned after turning on compact mode.');
+    $this->assertResponse(200);
     $this->assertUrl($frontpage_url, [], 'The user is redirected to the front page after turning on compact mode.');
     $this->assertEquals('1', $session->getCookie('Drupal.visitor.admin_compact_mode'), 'Compact mode turns on.');
     $this->drupalGet('admin/compact/on');
@@ -166,7 +166,7 @@ class AdminTest extends BrowserTestBase {
     $this->assertEquals('1', $session->getCookie('Drupal.visitor.admin_compact_mode'), 'Compact mode persists on new requests.');
 
     $this->drupalGet('admin/compact/off');
-    $this->assertResponse(200, 'A valid page is returned after turning off compact mode.');
+    $this->assertResponse(200);
     $this->assertUrl($frontpage_url, [], 'The user is redirected to the front page after turning off compact mode.');
     $this->assertNull($session->getCookie('Drupal.visitor.admin_compact_mode'), 'Compact mode turns off.');
     $this->drupalGet('admin/compact/off');

core/modules/system/tests/src/Functional/System/DateTimeTest.php

@@ -185,7 +185,7 @@ class DateTimeTest extends BrowserTestBase {
     $this->drupalCreateContentType(['type' => 'page_with_date', 'name' => 'Page with date']);
 
     $this->drupalGet('admin/structure/types/manage/page_with_date');
-    $this->assertResponse(200, 'Content type created.');
+    $this->assertResponse(200);
 
     $this->drupalGet('admin/structure/types/manage/page_with_date/fields/add-field');
     $edit = [

core/modules/system/tests/src/Functional/System/ErrorHandlerTest.php

@@ -51,7 +51,7 @@ class ErrorHandlerTest extends BrowserTestBase {
     // Set error reporting to display verbose notices.
     $this->config('system.logging')->set('error_level', ERROR_REPORTING_DISPLAY_VERBOSE)->save();
     $this->drupalGet('error-test/generate-warnings');
-    $this->assertResponse(200, 'Received expected HTTP status code.');
+    $this->assertResponse(200);
     $this->assertErrorMessage($error_notice);
     $this->assertErrorMessage($error_warning);
     $this->assertErrorMessage($error_user_notice);
@@ -66,7 +66,7 @@ class ErrorHandlerTest extends BrowserTestBase {
     // Set error reporting to collect notices.
     $config->set('error_level', ERROR_REPORTING_DISPLAY_ALL)->save();
     $this->drupalGet('error-test/generate-warnings');
-    $this->assertResponse(200, 'Received expected HTTP status code.');
+    $this->assertResponse(200);
     $this->assertErrorMessage($error_notice);
     $this->assertErrorMessage($error_warning);
     $this->assertErrorMessage($error_user_notice);
@@ -75,7 +75,7 @@ class ErrorHandlerTest extends BrowserTestBase {
     // Set error reporting to not collect notices.
     $config->set('error_level', ERROR_REPORTING_DISPLAY_SOME)->save();
     $this->drupalGet('error-test/generate-warnings');
-    $this->assertResponse(200, 'Received expected HTTP status code.');
+    $this->assertResponse(200);
     $this->assertNoErrorMessage($error_notice);
     $this->assertErrorMessage($error_warning);
     $this->assertErrorMessage($error_user_notice);
@@ -84,7 +84,7 @@ class ErrorHandlerTest extends BrowserTestBase {
     // Set error reporting to not show any errors.
     $config->set('error_level', ERROR_REPORTING_HIDE)->save();
     $this->drupalGet('error-test/generate-warnings');
-    $this->assertResponse(200, 'Received expected HTTP status code.');
+    $this->assertResponse(200);
     $this->assertNoErrorMessage($error_notice);
     $this->assertNoErrorMessage($error_warning);
     $this->assertNoErrorMessage($error_user_notice);

core/modules/system/tests/src/Functional/System/HtaccessTest.php

@@ -108,7 +108,7 @@ class HtaccessTest extends BrowserTestBase {
 
     // Test that adding "/1" to a .php URL does not make it accessible.
     $this->drupalGet('core/lib/Drupal.php/1');
-    $this->assertResponse(403, "Access to core/lib/Drupal.php/1 is denied.");
+    $this->assertResponse(403);
 
     // Test that it is possible to have path aliases containing .php.
     $type = $this->drupalCreateContentType();
@@ -143,7 +143,7 @@ class HtaccessTest extends BrowserTestBase {
   protected function assertFileAccess($path, $response_code) {
     $this->assertFileExists(\Drupal::root() . '/' . $path);
     $this->drupalGet($path);
-    $this->assertResponse($response_code, "Response code to $path is $response_code.");
+    $this->assertEquals($response_code, $this->getSession()->getStatusCode(), "Response code to $path should be $response_code");
   }
 
   /**

core/modules/system/tests/src/Functional/System/IndexPhpTest.php

@@ -27,10 +27,10 @@ class IndexPhpTest extends BrowserTestBase {
     $index_php = $GLOBALS['base_url'] . '/index.php';
 
     $this->drupalGet($index_php, ['external' => TRUE]);
-    $this->assertResponse(200, 'Make sure index.php returns a valid page.');
+    $this->assertResponse(200);
 
     $this->drupalGet($index_php . '/user', ['external' => TRUE]);
-    $this->assertResponse(200, 'Make sure index.php/user returns a valid page.');
+    $this->assertResponse(200);
   }
 
 }

core/modules/system/tests/src/Functional/System/StatusTest.php

@@ -48,7 +48,7 @@ class StatusTest extends BrowserTestBase {
   public function testStatusPage() {
     // Go to Administration.
     $this->drupalGet('admin/reports/status');
-    $this->assertResponse(200, 'The status page is reachable.');
+    $this->assertResponse(200);
 
     $phpversion = phpversion();
     $this->assertText($phpversion, 'Php version is shown on the page.');
@@ -81,7 +81,7 @@ class StatusTest extends BrowserTestBase {
     $this->assertText(t('Out of date'));
 
     $this->drupalGet('admin/reports/status/php');
-    $this->assertResponse(200, 'The phpinfo page is reachable.');
+    $this->assertResponse(200);
 
     // Check if cron error is displayed in errors section
     $cron_last_run = \Drupal::state()->get('system.cron_last');

core/modules/system/tests/src/Functional/System/ThemeTest.php

@@ -53,14 +53,16 @@ class ThemeTest extends BrowserTestBase {
    * Test the theme settings form.
    */
   public function testThemeSettings() {
-    // Ensure invalid theme settings form URLs return a proper 404.
+    // Ensure a disabled theme settings form URL returns 404.
     $this->drupalGet('admin/appearance/settings/bartik');
-    $this->assertResponse(404, 'The theme settings form URL for a uninstalled theme could not be found.');
+    $this->assertResponse(404);
+    // Ensure a non existent theme settings form URL returns 404.
     $this->drupalGet('admin/appearance/settings/' . $this->randomMachineName());
-    $this->assertResponse(404, 'The theme settings form URL for a non-existent theme could not be found.');
+    $this->assertResponse(404);
+    // Ensure a hidden theme settings form URL returns 404.
     $this->assertTrue(\Drupal::service('theme_installer')->install(['stable']));
     $this->drupalGet('admin/appearance/settings/stable');
-    $this->assertResponse(404, 'The theme settings form URL for a hidden theme is unavailable.');
+    $this->assertResponse(404);
 
     // Specify a filesystem path to be used for the logo.
     $file = current($this->drupalGetTestFiles('image'));
@@ -211,7 +213,7 @@ class ThemeTest extends BrowserTestBase {
     $this->drupalGet('admin/appearance/settings');
     $this->assertLink($theme_handler->getName('stable'));
     $this->drupalGet('admin/appearance/settings/stable');
-    $this->assertResponse(200, 'The theme settings form URL for a hidden theme that is the admin theme is available.');
+    $this->assertResponse(200);
 
     // Ensure default logo and favicons are not triggering custom path
     // validation errors if their custom paths are set on the form.

core/modules/system/tests/src/Functional/System/TrustedHostsTest.php

@@ -34,7 +34,7 @@ class TrustedHostsTest extends BrowserTestBase {
    */
   public function testStatusPageWithoutConfiguration() {
     $this->drupalGet('admin/reports/status');
-    $this->assertResponse(200, 'The status page is reachable.');
+    $this->assertResponse(200);
 
     $this->assertRaw(t('Trusted Host Settings'));
     $this->assertRaw(t('The trusted_host_patterns setting is not configured in settings.php.'));
@@ -52,7 +52,7 @@ class TrustedHostsTest extends BrowserTestBase {
     $this->writeSettings($settings);
 
     $this->drupalGet('admin/reports/status');
-    $this->assertResponse(200, 'The status page is reachable.');
+    $this->assertResponse(200);
 
     $this->assertRaw(t('Trusted Host Settings'));
     $this->assertRaw(t('The trusted_host_patterns setting is set to allow'));

core/modules/system/tests/src/Functional/UpdateSystem/UpdatePathTestBaseFilledTest.php

@@ -190,7 +190,7 @@ class UpdatePathTestBaseFilledTest extends UpdatePathTestBaseTest {
     $this->drupalGet('admin/config/content/formats');
     $this->assertText('Test text format');
     $this->drupalGet('admin/config/content/formats/manage/test_text_format');
-    $this->assertResponse('200');
+    $this->assertResponse(200);
 
     // Make sure our feed still exists.
     $this->drupalGet('admin/config/services/aggregator');
@@ -323,7 +323,7 @@ class UpdatePathTestBaseFilledTest extends UpdatePathTestBaseTest {
     $this->assertText('Test root term');
     $this->assertText('Test child term');
     $this->drupalGet('taxonomy/term/3');
-    $this->assertResponse('200');
+    $this->assertResponse(200);
 
     // Make sure the terms are still translated.
     $this->drupalGet('taxonomy/term/2/translations');

core/modules/taxonomy/tests/src/Functional/TaxonomyImageTest.php

@@ -98,13 +98,17 @@ class TaxonomyImageTest extends TaxonomyTestBase {
     $access_user = $this->drupalCreateUser(['access content']);
     $no_access_user = $this->drupalCreateUser();
     $image = File::load($term->field_test->target_id);
+
+    // Ensure a user that should be able to access the file can access it.
     $this->drupalLogin($access_user);
     $this->drupalGet(file_create_url($image->getFileUri()));
-    $this->assertResponse(200, 'Private image on term is accessible with right permission');
+    $this->assertResponse(200);
 
+    // Ensure a user that should not be able to access the file cannot access
+    // it.
     $this->drupalLogin($no_access_user);
     $this->drupalGet(file_create_url($image->getFileUri()));
-    $this->assertResponse(403, 'Private image on term not accessible without right permission');
+    $this->assertResponse(403);
   }
 
 }

core/modules/taxonomy/tests/src/Functional/TermTest.php

@@ -359,7 +359,7 @@ class TermTest extends TaxonomyTestBase {
 
     // Check the term link can be clicked through to the term page.
     $this->clickLink($edit['name[0][value]']);
-    $this->assertResponse(200, 'Term page can be accessed via the listing link.');
+    $this->assertResponse(200);
 
     // View the term and check that it is correct.
     $this->drupalGet('taxonomy/term/' . $term->id());
@@ -390,7 +390,7 @@ class TermTest extends TaxonomyTestBase {
 
     // Assert that the term no longer exists.
     $this->drupalGet('taxonomy/term/' . $term->id());
-    $this->assertResponse(404, 'The taxonomy term page was not found.');
+    $this->assertResponse(404);
   }
 
   /**

core/modules/taxonomy/tests/src/Functional/TermTranslationUITest.php

@@ -131,7 +131,7 @@ class TermTranslationUITest extends ContentTranslationUITestBase {
 
     // Verify translation links.
     $this->drupalGet('admin/structure/taxonomy/manage/' . $this->vocabulary->id() . '/overview');
-    $this->assertResponse(200, 'The translatable vocabulary page was found.');
+    $this->assertResponse(200);
     $this->assertLinkByHref('term/' . $translatable_tid . '/translations', 0, 'The translations link exists for a translatable vocabulary.');
     $this->assertLinkByHref('term/' . $translatable_tid . '/edit', 0, 'The edit link exists for a translatable vocabulary.');
 

core/modules/taxonomy/tests/src/Functional/VocabularyLanguageTest.php

@@ -85,7 +85,7 @@ class VocabularyLanguageTest extends TaxonomyTestBase {
 
     // Check that the vocabulary was actually created.
     $this->drupalGet('admin/structure/taxonomy/manage/' . $edit['vid']);
-    $this->assertResponse(200, 'The vocabulary has been created.');
+    $this->assertResponse(200);
 
     // Check that the language settings were saved.
     $language_settings = ContentLanguageSettings::loadByEntityTypeBundle('taxonomy_term', $edit['vid']);

core/modules/taxonomy/tests/src/Functional/VocabularyPermissionsTest.php

@@ -304,9 +304,9 @@ class VocabularyPermissionsTest extends TaxonomyTestBase {
     $user = $this->drupalCreateUser(["edit terms in {$vocabulary->id()}"]);
     $this->drupalLogin($user);
 
-    // Visit the main taxonomy administration page.
+    // Ensure the taxonomy term add form is denied.
     $this->drupalGet('admin/structure/taxonomy/manage/' . $vocabulary->id() . '/add');
-    $this->assertResponse(403, 'Add taxonomy term form open failed.');
+    $this->assertResponse(403);
 
     // Create a test term.
     $term = $this->createTerm($vocabulary);
@@ -324,24 +324,24 @@ class VocabularyPermissionsTest extends TaxonomyTestBase {
     $view_link = $this->xpath('//div[@class="messages"]//a[contains(@href, :href)]', [':href' => 'term/']);
     $this->assert(isset($view_link), 'The message area contains a link to a term');
 
-    // Delete the vocabulary.
+    // Ensure the term cannot be deleted.
     $this->drupalGet('taxonomy/term/' . $term->id() . '/delete');
-    $this->assertResponse(403, 'Delete taxonomy term form open failed.');
+    $this->assertResponse(403);
 
     // Test as user with "delete" permissions.
     $user = $this->drupalCreateUser(["delete terms in {$vocabulary->id()}"]);
     $this->drupalLogin($user);
 
-    // Visit the main taxonomy administration page.
+    // Ensure the taxonomy term add form is denied.
     $this->drupalGet('admin/structure/taxonomy/manage/' . $vocabulary->id() . '/add');
-    $this->assertResponse(403, 'Add taxonomy term form open failed.');
+    $this->assertResponse(403);
 
     // Create a test term.
     $term = $this->createTerm($vocabulary);
 
-    // Edit the term.
+    // Ensure that the term cannot be edited.
     $this->drupalGet('taxonomy/term/' . $term->id() . '/edit');
-    $this->assertResponse(403, 'Edit taxonomy term form open failed.');
+    $this->assertResponse(403);
 
     // Delete the vocabulary.
     $this->drupalGet('taxonomy/term/' . $term->id() . '/delete');
@@ -355,20 +355,20 @@ class VocabularyPermissionsTest extends TaxonomyTestBase {
     $user = $this->drupalCreateUser();
     $this->drupalLogin($user);
 
-    // Visit the main taxonomy administration page.
+    // Ensure the taxonomy term add form is denied.
     $this->drupalGet('admin/structure/taxonomy/manage/' . $vocabulary->id() . '/add');
-    $this->assertResponse(403, 'Add taxonomy term form open failed.');
+    $this->assertResponse(403);
 
     // Create a test term.
     $term = $this->createTerm($vocabulary);
 
-    // Edit the term.
+    // Ensure that the term cannot be edited.
     $this->drupalGet('taxonomy/term/' . $term->id() . '/edit');
-    $this->assertResponse(403, 'Edit taxonomy term form open failed.');
+    $this->assertResponse(403);
 
-    // Delete the vocabulary.
+    // Ensure the term cannot be deleted.
     $this->drupalGet('taxonomy/term/' . $term->id() . '/delete');
-    $this->assertResponse(403, 'Delete taxonomy term form open failed.');
+    $this->assertResponse(403);
   }
 
 }

core/modules/update/tests/src/Functional/UpdateCoreTest.php

@@ -98,7 +98,7 @@ class UpdateCoreTest extends UpdateTestBase {
 
     // Ensure that the update check requires a token.
     $this->drupalGet('admin/reports/updates/check');
-    $this->assertResponse(403, 'Accessing admin/reports/updates/check without a CSRF token results in access denied.');
+    $this->assertResponse(403);
 
     foreach ([0, 1] as $minor_version) {
       foreach (['-alpha1', '-beta1', ''] as $extra_version) {

core/modules/user/tests/src/Functional/UserAdminListingTest.php

@@ -22,8 +22,9 @@ class UserAdminListingTest extends BrowserTestBase {
    * Tests the listing.
    */
   public function testUserListing() {
+    // Ensure the anonymous user cannot access the admin listing.
     $this->drupalGet('admin/people');
-    $this->assertResponse(403, 'Anonymous user does not have access to the user admin listing.');
+    $this->assertResponse(403);
 
     // Create a bunch of users.
     $accounts = [];
@@ -62,8 +63,9 @@ class UserAdminListingTest extends BrowserTestBase {
 
     $this->drupalLogin($admin_user);
 
+    // Ensure the admin user can access the admin listing.
     $this->drupalGet('admin/people');
-    $this->assertResponse(200, 'The admin user has access to the user admin listing.');
+    $this->assertResponse(200);
 
     $result = $this->xpath('//table[contains(@class, "responsive-enabled")]/tbody/tr');
     $result_accounts = [];

core/modules/user/tests/src/Functional/UserCancelTest.php

@@ -61,7 +61,7 @@ class UserCancelTest extends BrowserTestBase {
     // Attempt bogus account cancellation request confirmation.
     $timestamp = $account->getLastLoginTime();
     $this->drupalGet("user/" . $account->id() . "/cancel/confirm/$timestamp/" . user_pass_rehash($account, $timestamp));
-    $this->assertResponse(403, 'Bogus cancelling request rejected.');
+    $this->assertResponse(403);
     $user_storage->resetCache([$account->id()]);
     $account = $user_storage->load($account->id());
     $this->assertTrue($account->isActive(), 'User account was not canceled.');

core/modules/user/tests/src/Functional/UserRegistrationTest.php

@@ -34,10 +34,11 @@ class UserRegistrationTest extends BrowserTestBase {
     // Require email verification.
     $config->set('verify_mail', TRUE)->save();
 
-    // Set registration to administrator only.
+    // Set registration to administrator only and ensure the user registration
+    // page is inaccessible.
     $config->set('register', UserInterface::REGISTER_ADMINISTRATORS_ONLY)->save();
     $this->drupalGet('user/register');
-    $this->assertResponse(403, 'Registration page is inaccessible when only administrators can create accounts.');
+    $this->assertResponse(403);
 
     // Allow registration by site visitors without administrator approval.
     $config->set('register', UserInterface::REGISTER_VISITORS)->save();

core/modules/user/tests/src/Functional/UserRoleAdminTest.php

@@ -93,10 +93,10 @@ class UserRoleAdminTest extends BrowserTestBase {
     // Make sure that the system-defined roles can be edited via the user
     // interface.
     $this->drupalGet('admin/people/roles/manage/' . RoleInterface::ANONYMOUS_ID);
-    $this->assertResponse(200, 'Access granted when trying to edit the built-in anonymous role.');
+    $this->assertResponse(200);
     $this->assertNoText(t('Delete role'), 'Delete button for the anonymous role is not present.');
     $this->drupalGet('admin/people/roles/manage/' . RoleInterface::AUTHENTICATED_ID);
-    $this->assertResponse(200, 'Access granted when trying to edit the built-in authenticated role.');
+    $this->assertResponse(200);
     $this->assertNoText(t('Delete role'), 'Delete button for the authenticated role is not present.');
   }
 

core/modules/user/tests/src/Functional/UserSearchTest.php

@@ -108,17 +108,19 @@ class UserSearchTest extends BrowserTestBase {
     $this->drupalPostForm('search/user', $edit, t('Search'));
     $this->assertText(t('Your search yielded no results.'), 'Blocked users are hidden from the user search results.');
 
-    // Create a user without search permission, and one without user page view
+    // Ensure that a user without access to user profiles cannot access the
-    // permission. Verify that neither one can access the user search page.
+    // user search page.
     $user3 = $this->drupalCreateUser(['search content']);
     $this->drupalLogin($user3);
     $this->drupalGet('search/user');
-    $this->assertResponse('403', 'User without user profile access cannot search');
+    $this->assertResponse(403);
 
+    // Ensure that a user without search permission cannot access the user
+    // search page.
     $user4 = $this->drupalCreateUser(['access user profiles']);
     $this->drupalLogin($user4);
     $this->drupalGet('search/user');
-    $this->assertResponse('403', 'User without search permission cannot search');
+    $this->assertResponse(403);
     $this->drupalLogout();
   }
 

core/modules/user/tests/src/Functional/Views/BulkFormAccessTest.php

@@ -49,7 +49,7 @@ class BulkFormAccessTest extends UserTestBase {
     // Ensure that the account "no_edit" can not be edited.
     $this->drupalGet('user/' . $no_edit_user->id() . '/edit');
     $this->assertFalse($no_edit_user->access('update', $admin_user));
-    $this->assertResponse(403, 'The user may not be edited.');
+    $this->assertResponse(403);
 
     // Test blocking the account "no_edit".
     $edit = [
@@ -109,10 +109,10 @@ class BulkFormAccessTest extends UserTestBase {
 
     // Ensure that the account "no_delete" can not be deleted.
     $this->drupalGet('user/' . $account->id() . '/cancel');
-    $this->assertResponse(403, 'The user "no_delete" may not be deleted.');
+    $this->assertResponse(403);
     // Ensure that the account "may_delete" *can* be deleted.
     $this->drupalGet('user/' . $account2->id() . '/cancel');
-    $this->assertResponse(200, 'The user "may_delete" may be deleted.');
+    $this->assertResponse(200);
 
     // Test deleting the accounts "no_delete" and "may_delete".
     $edit = [

core/modules/views_ui/tests/src/Functional/ReportTest.php

@@ -36,7 +36,7 @@ class ReportTest extends UITestBase {
 
     // Test the report page.
     $this->drupalGet('admin/reports/views-plugins');
-    $this->assertResponse(200, "Views report page exists");
+    $this->assertResponse(200);
   }
 
 }

core/tests/Drupal/FunctionalTests/Bootstrap/UncaughtExceptionTest.php

@@ -115,7 +115,7 @@ class UncaughtExceptionTest extends BrowserTestBase {
       '%function' => 'Drupal\error_test\Controller\ErrorTestController->Drupal\error_test\Controller\{closure}()',
     ];
     $this->drupalGet('error-test/generate-fatals');
-    $this->assertResponse(500, 'Received expected HTTP status code.');
+    $this->assertResponse(500);
     $message = new FormattableMarkup('%type: @message in %function (line ', $fatal_error);
     $this->assertRaw((string) $message);
     $this->assertRaw('<pre class="backtrace">');