function ThemeEarlyInitializationTest::testRequestListener

Test that the theme system can generate output in a request listener.

File

core/modules/system/tests/src/Functional/Theme/ThemeEarlyInitializationTest.php, line 30

Class

ThemeEarlyInitializationTest

Tests that the theme system can be correctly initialized early in the page request.

Namespace

Code

public function testRequestListener() {
  $this->drupalGet('theme-test/request-listener');
  // Verify that themed output generated in the request listener appears.
  $this->assertRaw('Themed output generated in a KernelEvents::REQUEST listener');
  // Verify that the default theme's CSS still appears even though the theme
  // system was initialized early.
  $this->assertRaw('classy/css/components/action-links.css');
}