function ImageAdminStylesTest::testFlushUserInterface

Test flush user interface.

File

core/modules/image/tests/src/Functional/ImageAdminStylesTest.php, line 427

Class

ImageAdminStylesTest

Tests creation, deletion, and editing of image styles and effects.

Namespace

Code

public function testFlushUserInterface() {
  $admin_path = 'admin/config/media/image-styles';
  // Create a new style.
  $style_name = strtolower($this->randomMachineName(10));
  $style = ImageStyle::create([
    'name' => $style_name,
    'label' => $this->randomString(),
  ]);
  $style->save();
  // Create an image to make sure it gets flushed.
  $files = $this->drupalGetTestFiles('image');
  $image_uri = $files[0]->uri;
  $derivative_uri = $style->buildUri($image_uri);
  $this->assertTrue($style->createDerivative($image_uri, $derivative_uri));
  $this->assertEqual($this->getImageCount($style), 1);
  // Go to image styles list page and check if the flush operation link
  // exists.
  $this->drupalGet($admin_path);
  $flush_path = $admin_path . '/manage/' . $style_name . '/flush';
  $this->assertLinkByHref($flush_path);
  // Flush the image style derivatives using the user interface.
  $this->drupalPostForm($flush_path, [], t('Flush'));
  // The derivative image file should have been deleted.
  $this->assertEqual($this->getImageCount($style), 0);
}