public function ThemeTest::testPreprocessHtml in Drupal 10

Same name and namespace in other branches

1. 8 core/modules/system/tests/src/Functional/Theme/ThemeTest.php \Drupal\Tests\system\Functional\Theme\ThemeTest::testPreprocessHtml()
2. 9 core/modules/system/tests/src/Functional/Theme/ThemeTest.php \Drupal\Tests\system\Functional\Theme\ThemeTest::testPreprocessHtml()

Tests that the page variable is not prematurely flattened.

Some modules check the page array in template_preprocess_html(), so we ensure that it has not been rendered prematurely.

File

core/modules/system/tests/src/Functional/Theme/ThemeTest.php, line 150

Class

ThemeTest

Tests low-level theme functions.

Namespace

Drupal\Tests\system\Functional\Theme

Code

public function testPreprocessHtml() {
  $this
    ->drupalGet('');
  $attributes = $this
    ->xpath('/body[@theme_test_page_variable="Page variable is an array."]');
  $this
    ->assertCount(1, $attributes, 'In template_preprocess_html(), the page variable is still an array (not rendered yet).');
  $this
    ->assertSession()
    ->pageTextContains('theme test page bottom markup');
}