Issue #1289336 by JimmyAx, marcingy, rooby, no_commit_credit | janipuni: Fixed D8 test coverage: Calling node_view() for the same node with muliple view modes on the same page does not correctly attach fields.

core/modules/node/lib/Drupal/node/Tests/PagePreviewTest.php

@@ -11,6 +11,14 @@ namespace Drupal\node\Tests;
  * Tests the node entity preview functionality.
  */
 class PagePreviewTest extends NodeTestBase {
+
+  /**
+   * Enable the node and taxonomy modules to test both on the preview.
+   *
+   * @var array
+   */
+  public static $modules = array('node', 'taxonomy');
+
   public static function getInfo() {
     return array(
       'name' => 'Node preview',
@@ -24,6 +32,64 @@ class PagePreviewTest extends NodeTestBase {
 
     $web_user = $this->drupalCreateUser(array('edit own page content', 'create page content'));
     $this->drupalLogin($web_user);
+
+    // Add a vocabulary so we can test different view modes.
+    $vocabulary = entity_create('taxonomy_vocabulary', array(
+      'name' => $this->randomName(),
+      'description' => $this->randomName(),
+      'vid' => $this->randomName(),
+      'langcode' => LANGUAGE_NOT_SPECIFIED,
+      'help' => '',
+    ));
+    $vocabulary->save();
+
+    $this->vocabulary = $vocabulary;
+
+    // Add a term to the vocabulary.
+    $term = entity_create('taxonomy_term', array(
+      'name' => $this->randomName(),
+      'description' => $this->randomName(),
+      'vid' => $this->vocabulary->id(),
+      'langcode' => LANGUAGE_NOT_SPECIFIED,
+    ));
+    $term->save();
+
+    $this->term = $term;
+
+    // Set up a field and instance.
+    $this->field_name = drupal_strtolower($this->randomName());
+    $this->field = array(
+      'field_name' => $this->field_name,
+      'type' => 'taxonomy_term_reference',
+      'settings' => array(
+        'allowed_values' => array(
+          array(
+            'vocabulary' => $this->vocabulary->id(),
+            'parent' => '0',
+          ),
+        ),
+      )
+    );
+
+    field_create_field($this->field);
+    $this->instance = array(
+      'field_name' => $this->field_name,
+      'entity_type' => 'node',
+      'bundle' => 'page',
+      'widget' => array(
+        'type' => 'options_select',
+      ),
+      // Hide on full display but render on teaser.
+      'display' => array(
+        'default' => array(
+          'type' => 'hidden',
+        ),
+        'teaser' => array(
+          'type' => 'taxonomy_term_reference_link',
+        ),
+      ),
+    );
+    field_create_instance($this->instance);
   }
 
   /**
@@ -33,21 +99,26 @@ class PagePreviewTest extends NodeTestBase {
     $langcode = LANGUAGE_NOT_SPECIFIED;
     $title_key = "title";
     $body_key = "body[$langcode][0][value]";
+    $term_key = "{$this->field_name}[$langcode]";
 
     // Fill in node creation form and preview node.
     $edit = array();
     $edit[$title_key] = $this->randomName(8);
     $edit[$body_key] = $this->randomName(16);
+    $edit[$term_key] = $this->term->id();
     $this->drupalPost('node/add/page', $edit, t('Preview'));
 
-    // Check that the preview is displaying the title and body.
+    // Check that the preview is displaying the title, body and term.
     $this->assertTitle(t('Preview | Drupal'), 'Basic page title is preview.');
     $this->assertText($edit[$title_key], 'Title displayed.');
     $this->assertText($edit[$body_key], 'Body displayed.');
+    $this->assertText($edit[$term_key], 'Term displayed.');
 
-    // Check that the title and body fields are displayed with the correct values.
+    // Check that the title, body and term fields are displayed with the
+    // correct values.
     $this->assertFieldByName($title_key, $edit[$title_key], 'Title field displayed.');
     $this->assertFieldByName($body_key, $edit[$body_key], 'Body field displayed.');
+    $this->assertFieldByName($term_key, $edit[$term_key], 'Term field displayed.');
   }
 
   /**
@@ -57,6 +128,7 @@ class PagePreviewTest extends NodeTestBase {
     $langcode = LANGUAGE_NOT_SPECIFIED;
     $title_key = "title";
     $body_key = "body[$langcode][0][value]";
+    $term_key = "{$this->field_name}[$langcode]";
     // Force revision on "Basic page" content.
     variable_set('node_options_page', array('status', 'revision'));
 
@@ -64,17 +136,20 @@ class PagePreviewTest extends NodeTestBase {
     $edit = array();
     $edit[$title_key] = $this->randomName(8);
     $edit[$body_key] = $this->randomName(16);
+    $edit[$term_key] = $this->term->id();
     $edit['log'] = $this->randomName(32);
     $this->drupalPost('node/add/page', $edit, t('Preview'));
 
-    // Check that the preview is displaying the title and body.
+    // Check that the preview is displaying the title, body and term.
     $this->assertTitle(t('Preview | Drupal'), 'Basic page title is preview.');
     $this->assertText($edit[$title_key], 'Title displayed.');
     $this->assertText($edit[$body_key], 'Body displayed.');
+    $this->assertText($edit[$term_key], 'Term displayed.');
 
-    // Check that the title and body fields are displayed with the correct values.
+    // Check that the title, body and term fields are displayed with the correct values.
     $this->assertFieldByName($title_key, $edit[$title_key], 'Title field displayed.');
     $this->assertFieldByName($body_key, $edit[$body_key], 'Body field displayed.');
+    $this->assertFieldByName($term_key, $edit[$term_key], 'Term field displayed.');
 
     // Check that the log field has the correct value.
     $this->assertFieldByName('log', $edit['log'], 'Log field displayed.');