Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Tests\node\Functional;
Chris@0: 
Chris@0: use Drupal\Core\Cache\Cache;
Chris@0: use Drupal\Tests\EntityViewTrait;
Chris@0: 
Chris@0: /**
Chris@0:  * Tests changing view modes for nodes.
Chris@0:  *
Chris@0:  * @group node
Chris@0:  */
Chris@0: class NodeEntityViewModeAlterTest extends NodeTestBase {
Chris@0: 
Chris@0:   use EntityViewTrait;
Chris@0: 
Chris@0:   /**
Chris@0:    * Enable dummy module that implements hook_ENTITY_TYPE_view() for nodes.
Chris@0:    */
Chris@0:   public static $modules = ['node_test'];
Chris@0: 
Chris@0:   /**
Chris@0:    * Create a "Basic page" node and verify its consistency in the database.
Chris@0:    */
Chris@0:   public function testNodeViewModeChange() {
Chris@0:     $web_user = $this->drupalCreateUser(['create page content', 'edit own page content']);
Chris@0:     $this->drupalLogin($web_user);
Chris@0: 
Chris@0:     // Create a node.
Chris@0:     $edit = [];
Chris@0:     $edit['title[0][value]'] = $this->randomMachineName(8);
Chris@0:     $edit['body[0][value]'] = t('Data that should appear only in the body for the node.');
Chris@0:     $edit['body[0][summary]'] = t('Extra data that should appear only in the teaser for the node.');
Chris@0:     $this->drupalPostForm('node/add/page', $edit, t('Save'));
Chris@0: 
Chris@0:     $node = $this->drupalGetNodeByTitle($edit['title[0][value]']);
Chris@0: 
Chris@0:     // Set the flag to alter the view mode and view the node.
Chris@0:     \Drupal::state()->set('node_test_change_view_mode', 'teaser');
Chris@0:     Cache::invalidateTags(['rendered']);
Chris@0:     $this->drupalGet('node/' . $node->id());
Chris@0: 
Chris@0:     // Check that teaser mode is viewed.
Chris@0:     $this->assertText('Extra data that should appear only in the teaser for the node.', 'Teaser text present');
Chris@0:     // Make sure body text is not present.
Chris@0:     $this->assertNoText('Data that should appear only in the body for the node.', 'Body text not present');
Chris@0: 
Chris@0:     // Test that the correct build mode has been set.
Chris@0:     $build = $this->buildEntityView($node);
Chris@0:     $this->assertEqual($build['#view_mode'], 'teaser', 'The view mode has correctly been set to teaser.');
Chris@0:   }
Chris@0: 
Chris@0: }