DependencyTest.php

<?php

/**
 * @file
 * Contains \Drupal\system\Tests\Module\DependencyTest.
 */

namespace Drupal\system\Tests\Module;

/**
 * Tests module dependency functionality.
 */
class DependencyTest extends ModuleTestBase {
  public static function getInfo() {
    return array(
      'name' => 'Module dependencies',
      'description' => 'Enable module without dependency enabled.',
      'group' => 'Module',
    );
  }

  /**
   * Attempts to enable the Content Translation module without Language enabled.
   */
  function testEnableWithoutDependency() {
    // Attempt to enable Content Translation without Language enabled.
    $edit = array();
    $edit['modules[Multilingual][content_translation][enable]'] = 'content_translation';
    $this->drupalPostForm('admin/modules', $edit, t('Save configuration'));
    $this->assertText(t('Some required modules must be enabled'), 'Dependency required.');

    $this->assertModules(array('content_translation', 'language'), FALSE);

    // Assert that the language tables weren't enabled.
    $this->assertTableCount('language', FALSE);

    $this->drupalPostForm(NULL, NULL, t('Continue'));
    $this->assertText(t('The configuration options have been saved.'), 'Modules status has been updated.');

    $this->assertModules(array('content_translation', 'language'), TRUE);

    // Assert that the language YAML files were created.
    $storage = $this->container->get('config.storage');
    $this->assertTrue(count($storage->listAll('language.entity.')) > 0, 'Language config entity files exist.');
  }

  /**
   * Attempts to enable a module with a missing dependency.
   */
  function testMissingModules() {
    // Test that the system_dependencies_test module is marked
    // as missing a dependency.
    $this->drupalGet('admin/modules');
    $this->assertRaw(t('@module (<span class="admin-missing">missing</span>)', array('@module' => drupal_ucfirst('_missing_dependency'))), 'A module with missing dependencies is marked as such.');
    $checkbox = $this->xpath('//input[@type="checkbox" and @disabled="disabled" and @name="modules[Testing][system_dependencies_test][enable]"]');
    $this->assert(count($checkbox) == 1, 'Checkbox for the module is disabled.');
  }

  /**
   * Tests enabling a module that depends on an incompatible version of a module.
   */
  function testIncompatibleModuleVersionDependency() {
    // Test that the system_incompatible_module_version_dependencies_test is
    // marked as having an incompatible dependency.
    $this->drupalGet('admin/modules');
    $this->assertRaw(t('@module (<span class="admin-missing">incompatible with</span> version @version)', array(
      '@module' => 'System incompatible module version test (>2.0)',
      '@version' => '1.0',
    )), 'A module that depends on an incompatible version of a module is marked as such.');
    $checkbox = $this->xpath('//input[@type="checkbox" and @disabled="disabled" and @name="modules[Testing][system_incompatible_module_version_dependencies_test][enable]"]');