Issue #1841900 by olli, herom, Sheldon Rampton: Node deletion should clear page cache.

CHANGELOG.txt

@@ -1,6 +1,8 @@
 
 Drupal 7.25, xxxx-xx-xx (development version)
 -----------------------
+- Fixed a bug in which caches were not properly cleared when a node was deleted
+  via the administrative interface.
 - Changed the Bartik theme to render content contained in <pre>, <code> and
   similar tags in a larger font size, so it is easier to read.
 - Fixed a bug in the Search module that caused exceptions to be thrown during

modules/node/node.admin.inc

@@ -695,6 +695,7 @@ function node_multiple_delete_confirm($form, &$form_state, $nodes) {
 function node_multiple_delete_confirm_submit($form, &$form_state) {
   if ($form_state['values']['confirm']) {
     node_delete_multiple(array_keys($form_state['values']['nodes']));
+    cache_clear_all();
     $count = count($form_state['values']['nodes']);
     watchdog('content', 'Deleted @count posts.', array('@count' => $count));
     drupal_set_message(format_plural($count, 'Deleted 1 post.', 'Deleted @count posts.'));

modules/node/node.pages.inc

@@ -542,6 +542,7 @@ function node_delete_confirm_submit($form, &$form_state) {
   if ($form_state['values']['confirm']) {
     $node = node_load($form_state['values']['nid']);
     node_delete($form_state['values']['nid']);
+    cache_clear_all();
     watchdog('content', '@type: deleted %title.', array('@type' => $node->type, '%title' => $node->title));
     drupal_set_message(t('@type %title has been deleted.', array('@type' => node_type_get_name($node), '%title' => $node->title)));
   }

modules/node/node.test

@@ -2755,3 +2755,78 @@ class NodeEntityViewModeAlterTest extends NodeWebTestCase {
     $this->assertEqual($build['#view_mode'], 'teaser', 'The view mode has correctly been set to teaser.');
   }
 }
+
+/**
+ * Tests the cache invalidation of node operations.
+ */
+class NodePageCacheTest extends NodeWebTestCase {
+
+  /**
+   * An admin user with administrative permissions for nodes.
+   */
+  protected $admin_user;
+
+  public static function getInfo() {
+    return array(
+        'name' => 'Node page cache test',
+        'description' => 'Test cache invalidation of node operations.',
+        'group' => 'Node',
+    );
+  }
+
+  function setUp() {
+    parent::setUp();
+
+    variable_set('cache', 1);
+    variable_set('page_cache_maximum_age', 300);
+
+    $this->admin_user = $this->drupalCreateUser(array(
+        'bypass node access',
+        'access content overview',
+        'administer nodes',
+    ));
+  }
+
+  /**
+   * Tests deleting nodes clears page cache.
+   */
+  public function testNodeDelete() {
+    $node_path = 'node/' . $this->drupalCreateNode()->nid;
+
+    // Populate page cache.
+    $this->drupalGet($node_path);
+
+    // Login and delete the node.
+    $this->drupalLogin($this->admin_user);
+    $this->drupalPost($node_path . '/delete', array(), t('Delete'));
+
+    // Logout and check the node is not available.
+    $this->drupalLogout();
+    $this->drupalGet($node_path);
+    $this->assertResponse(404);
+
+    // Create two new nodes.
+    $nodes[0] = $this->drupalCreateNode();
+    $nodes[1] = $this->drupalCreateNode();
+    $node_path = 'node/' . $nodes[0]->nid;
+
+    // Populate page cache.
+    $this->drupalGet($node_path);
+
+    // Login and delete the nodes.
+    $this->drupalLogin($this->admin_user);
+    $this->drupalGet('admin/content');
+    $edit = array(
+        'operation' => 'delete',
+        'nodes[' . $nodes[0]->nid . ']' => TRUE,
+        'nodes[' . $nodes[1]->nid . ']' => TRUE,
+    );
+    $this->drupalPost(NULL, $edit, t('Update'));
+    $this->drupalPost(NULL, array(), t('Delete'));
+
+    // Logout and check the node is not available.
+    $this->drupalLogout();
+    $this->drupalGet($node_path);
+    $this->assertResponse(404);
+  }
+}