function ThemeSuggestionsAlterTest::testSpecificSuggestionsAlter

Tests that theme suggestion alter hooks work for specific theme calls.

File

core/modules/system/tests/src/Functional/Theme/ThemeSuggestionsAlterTest.php, line 102

Class

ThemeSuggestionsAlterTest

Tests theme suggestion alter hooks.

Namespace

Code

public function testSpecificSuggestionsAlter() : void {
    // Test that the default template is rendered.
    $this->drupalGet('theme-test/specific-suggestion-alter');
    $this->assertSession()
        ->pageTextContains('Template for testing specific theme calls.');
    $this->config('system.theme')
        ->set('default', 'test_theme')
        ->save();
    // Test a specific theme call similar to '#theme' => 'node__article'.
    $this->drupalGet('theme-test/specific-suggestion-alter');
    $this->assertSession()
        ->pageTextContains('Template matching the specific theme call.');
    $this->assertSession()
        ->pageTextContains('theme_test_specific_suggestions__variant');
    // Ensure that the base hook is used to determine the suggestion alter hook.
    \Drupal::service('module_installer')->install([
        'theme_suggestions_test',
    ]);
    $this->resetAll();
    $this->drupalGet('theme-test/specific-suggestion-alter');
    $this->assertSession()
        ->pageTextContains('Template overridden based on suggestion alter hook determined by the base hook.');
    $raw_content = $this->getSession()
        ->getPage()
        ->getContent();
    // Verify that a specific theme call is added to the suggestions array
    // before the suggestions alter hook.
    $this->assertLessThan(strpos($raw_content, 'theme_test_specific_suggestions__variant__foo'), strpos($raw_content, 'theme_test_specific_suggestions__variant'));
}