function ThemeTest::testListThemes

Tests the listInfo() function.

File

core/modules/system/tests/src/Kernel/Theme/ThemeTest.php, line 106

Class

ThemeTest

Tests low-level theme functions.

Namespace

Code

public function testListThemes() {
  $this->container
    ->get('theme_installer')
    ->install([
    'test_subtheme',
  ]);
  $theme_handler = $this->container
    ->get('theme_handler');
  $themes = $theme_handler->listInfo();
  // Check if ThemeHandlerInterface::listInfo() retrieves enabled themes.
  $this->assertSame(1, $themes['test_theme']->status, 'Installed theme detected');
  // Check if ThemeHandlerInterface::listInfo() returns disabled themes.
  // Check for base theme and subtheme lists.
  $base_theme_list = [
    'test_basetheme' => 'Theme test base theme',
  ];
  $sub_theme_list = [
    'test_subsubtheme' => 'Theme test subsubtheme',
    'test_subtheme' => 'Theme test subtheme',
  ];
  $this->assertSame($sub_theme_list, $themes['test_basetheme']->sub_themes, 'Base theme\'s object includes list of subthemes.');
  $this->assertSame($base_theme_list, $themes['test_subtheme']->base_themes, 'Subtheme\'s object includes list of base themes.');
  // Check for theme engine in subtheme.
  $this->assertSame('twig', $themes['test_subtheme']->engine, 'Subtheme\'s object includes the theme engine.');
  // Check for theme engine prefix.
  $this->assertSame('twig', $themes['test_basetheme']->prefix, 'Base theme\'s object includes the theme engine prefix.');
  $this->assertSame('twig', $themes['test_subtheme']->prefix, 'Subtheme\'s object includes the theme engine prefix.');
}