function ThemeTest::testUninstallingThemes

Tests uninstalling of themes works.

File

core/modules/system/tests/src/Functional/System/ThemeTest.php, line 461

Class

ThemeTest

Tests the theme administration user interface.

Namespace

Code

public function testUninstallingThemes() : void {
  // Install 'Test theme'.
  \Drupal::service('theme_installer')->install([
    'test_theme',
  ]);
  // Set up Admin as the admin theme.
  \Drupal::service('theme_installer')->install([
    'default_admin',
  ]);
  $edit = [
    'admin_theme' => 'default_admin',
    'use_admin_theme' => TRUE,
  ];
  $this->drupalGet('admin/appearance');
  $this->submitForm($edit, 'Save configuration');
  // Set 'Test theme' as the default theme.
  $this->cssSelect('a[title="Set <strong>Test theme</strong> as default theme"]')[0]
    ->click();
  // Check that Admin cannot be uninstalled as it is the admin theme.
  $this->assertSession()
    ->responseNotContains('Uninstall Default Admin theme');
  // Check that 'Test theme' cannot be uninstalled as it is the default theme.
  $this->assertSession()
    ->responseNotContains('Uninstall <strong>Test theme</strong> theme');
  // Install Stark and set it as the default theme.
  \Drupal::service('theme_installer')->install([
    'stark',
  ]);
  $edit = [
    'admin_theme' => 'stark',
    'use_admin_theme' => TRUE,
  ];
  $this->drupalGet('admin/appearance');
  $this->submitForm($edit, 'Save configuration');
  // Check that default_admin can be uninstalled now.
  $this->assertSession()
    ->responseContains('Uninstall Default Admin theme');
  // Change the default theme to stark, stark is second in the list.
  $this->clickLink('Set as default', 1);
  // Check that 'Test theme' can be uninstalled now.
  $this->assertSession()
    ->responseContains('Uninstall &lt;strong&gt;Test theme&lt;/strong&gt; theme');
  // Uninstall each of the two themes starting with 'Test theme'.
  $this->cssSelect('a[title="Uninstall <strong>Test theme</strong> theme"]')[0]
    ->click();
  $this->submitForm([], 'Uninstall');
  $this->assertSession()
    ->responseContains('The <em class="placeholder">&lt;strong&gt;Test theme&lt;/strong&gt;</em> theme has been uninstalled.');
  $this->cssSelect('a[title="Uninstall Default Admin theme"]')[0]
    ->click();
  $this->submitForm([], 'Uninstall');
  $this->assertSession()
    ->responseContains('The <em class="placeholder">Default Admin</em> theme has been uninstalled');
}