public function InstallUninstallTest::testInstallUninstall in Drupal 8

Same name and namespace in other branches
9 core/modules/system/tests/src/Functional/Module/InstallUninstallTest.php \Drupal\Tests\system\Functional\Module\InstallUninstallTest::testInstallUninstall()
Tests that a fixed set of modules can be installed and uninstalled.
File

core/modules/system/tests/src/Functional/Module/InstallUninstallTest.php, line 35
Class

InstallUninstallTest: Install/uninstall core module and confirm table creation/deletion.
Namespace

Drupal\Tests\system\Functional\Module
Code

public function testInstallUninstall() {

  // Set a variable so that the hook implementations in system_test.module
  // will display messages via
  // \Drupal\Core\Messenger\MessengerInterface::addStatus().
  $this->container
    ->get('state')
    ->set('system_test.verbose_module_hooks', TRUE);

  // Install and uninstall module_test to ensure hook_preinstall_module and
  // hook_preuninstall_module are fired as expected.
  $this->container
    ->get('module_installer')
    ->install([
    'module_test',
  ]);
  $this
    ->assertEqual($this->container
    ->get('state')
    ->get('system_test_preinstall_module'), 'module_test');
  $this->container
    ->get('module_installer')
    ->uninstall([
    'module_test',
  ]);
  $this
    ->assertEqual($this->container
    ->get('state')
    ->get('system_test_preuninstall_module'), 'module_test');
  $this
    ->resetAll();
  $all_modules = $this->container
    ->get('extension.list.module')
    ->getList();

  // Test help on required modules, but do not test uninstalling.
  $required_modules = array_filter($all_modules, function ($module) {
    if (!empty($module->info['required']) || $module->status == TRUE) {
      if ($module->info['package'] != 'Testing' && empty($module->info['hidden'])) {
        return TRUE;
      }
    }
    return FALSE;
  });
  $required_modules['help'] = $all_modules['help'];

  // Test uninstalling without hidden, required, and already enabled modules.
  $all_modules = array_filter($all_modules, function ($module) {
    if (!empty($module->info['hidden']) || !empty($module->info['required']) || $module->status == TRUE || $module->info['package'] == 'Testing') {
      return FALSE;
    }
    return TRUE;
  });

  // Install the Help module, and verify it installed successfully.
  unset($all_modules['help']);
  $this
    ->assertModuleNotInstalled('help');
  $edit = [];
  $edit["modules[help][enable]"] = TRUE;
  $this
    ->drupalPostForm('admin/modules', $edit, t('Install'));
  $this
    ->assertText('has been enabled', 'Modules status has been updated.');
  $this
    ->assertText(t('hook_modules_installed fired for help'));
  $this
    ->assertModuleSuccessfullyInstalled('help');

  // Test help for the required modules.
  foreach ($required_modules as $name => $module) {
    $this
      ->assertHelp($name, $module->info['name']);
  }

  // Go through each module in the list and try to install and uninstall
  // it with its dependencies.
  foreach ($all_modules as $name => $module) {
    $was_installed_list = \Drupal::moduleHandler()
      ->getModuleList();

    // Start a list of modules that we expect to be installed this time.
    $modules_to_install = [
      $name,
    ];
    foreach (array_keys($module->requires) as $dependency) {
      if (isset($all_modules[$dependency])) {
        $modules_to_install[] = $dependency;
      }
    }

    // Check that each module is not yet enabled and does not have any
    // database tables yet.
    foreach ($modules_to_install as $module_to_install) {
      $this
        ->assertModuleNotInstalled($module_to_install);
    }

    // Install the module.
    $edit = [];
    $package = $module->info['package'];
    $edit['modules[' . $name . '][enable]'] = TRUE;
    $this
      ->drupalPostForm('admin/modules', $edit, t('Install'));

    // Handle experimental modules, which require a confirmation screen.
    if ($package == 'Core (Experimental)') {
      $this
        ->assertText('Are you sure you wish to enable experimental modules?');
      if (count($modules_to_install) > 1) {

        // When there are experimental modules, needed dependencies do not
        // result in the same page title, but there will be expected text
        // indicating they need to be enabled.
        $this
          ->assertText('You must enable');
      }
      $this
        ->drupalPostForm(NULL, [], t('Continue'));
    }
    elseif (count($modules_to_install) > 1) {

      // Verify that we are on the correct form and that the expected text
      // about enabling dependencies appears.
      $this
        ->assertText('Some required modules must be enabled');
      $this
        ->assertText('You must enable');
      $this
        ->drupalPostForm(NULL, [], t('Continue'));
    }

    // List the module display names to check the confirmation message.
    $module_names = [];
    foreach ($modules_to_install as $module_to_install) {
      $module_names[] = $all_modules[$module_to_install]->info['name'];
    }
    $expected_text = \Drupal::translation()
      ->formatPlural(count($module_names), 'Module @name has been enabled.', '@count modules have been enabled: @names.', [
      '@name' => $module_names[0],
      '@names' => implode(', ', $module_names),
    ]);
    $this
      ->assertText($expected_text, 'Modules status has been updated.');

    // Check that hook_modules_installed() was invoked with the expected list
    // of modules, that each module's database tables now exist, and that
    // appropriate messages appear in the logs.
    foreach ($modules_to_install as $module_to_install) {
      $this
        ->assertText(t('hook_modules_installed fired for @module', [
        '@module' => $module_to_install,
      ]));
      $this
        ->assertLogMessage('system', "%module module installed.", [
        '%module' => $module_to_install,
      ], RfcLogLevel::INFO);
      $this
        ->assertInstallModuleUpdates($module_to_install);
      $this
        ->assertModuleSuccessfullyInstalled($module_to_install);
    }

    // Verify the help page.
    $this
      ->assertHelp($name, $module->info['name']);

    // Uninstall the original module, plus everything else that was installed
    // with it.
    if ($name == 'forum') {

      // Forum has an extra step to be able to uninstall it.
      $this
        ->preUninstallForum();
    }

    // Delete all workspaces before uninstall.
    if ($name == 'workspaces') {
      $workspaces = Workspace::loadMultiple();
      \Drupal::entityTypeManager()
        ->getStorage('workspace')
        ->delete($workspaces);
    }
    $now_installed_list = \Drupal::moduleHandler()
      ->getModuleList();
    $added_modules = array_diff(array_keys($now_installed_list), array_keys($was_installed_list));
    while ($added_modules) {
      $initial_count = count($added_modules);
      foreach ($added_modules as $to_uninstall) {

        // See if we can currently uninstall this module (if its dependencies
        // have been uninstalled), and do so if we can.
        $this
          ->drupalGet('admin/modules/uninstall');
        $field_name = "uninstall[{$to_uninstall}]";
        $has_checkbox = $this
          ->xpath('//input[@type="checkbox" and @name="' . $field_name . '"]');
        $disabled = $this
          ->xpath('//input[@type="checkbox" and @name="' . $field_name . '" and @disabled="disabled"]');
        if (!empty($has_checkbox) && empty($disabled)) {

          // This one is eligible for being uninstalled.
          $package = $all_modules[$to_uninstall]->info['package'];
          $this
            ->assertSuccessfulUninstall($to_uninstall, $package);
          $added_modules = array_diff($added_modules, [
            $to_uninstall,
          ]);
        }
      }

      // If we were not able to find a module to uninstall, fail and exit the
      // loop.
      $final_count = count($added_modules);
      if ($initial_count == $final_count) {
        $this
          ->fail('Remaining modules could not be uninstalled for ' . $name);
        break;
      }
    }
  }

  // Uninstall the help module and put it back into the list of modules.
  $all_modules['help'] = $required_modules['help'];
  $this
    ->assertSuccessfulUninstall('help', $required_modules['help']->info['package']);

  // Now that all modules have been tested, go back and try to enable them
  // all again at once. This tests two things:
  // - That each module can be successfully enabled again after being
  //   uninstalled.
  // - That enabling more than one module at the same time does not lead to
  //   any errors.
  $edit = [];
  $experimental = FALSE;
  foreach ($all_modules as $name => $module) {
    $edit['modules[' . $name . '][enable]'] = TRUE;

    // Track whether there is at least one experimental module.
    if ($module->info['package'] == 'Core (Experimental)') {
      $experimental = TRUE;
    }
  }
  $this
    ->drupalPostForm('admin/modules', $edit, t('Install'));

  // If there are experimental modules, click the confirm form.
  if ($experimental) {
    $this
      ->assertText('Are you sure you wish to enable experimental modules?');
    $this
      ->drupalPostForm(NULL, [], t('Continue'));
  }

  // The string tested here is translatable but we are only using a part of it
  // so using a translated string is wrong. Doing so would create a new string
  // to translate.
  $this
    ->assertText(new FormattableMarkup('@count modules have been enabled: ', [
    '@count' => count($all_modules),
  ]), 'Modules status has been updated.');
}
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public function InstallUninstallTest::testInstallUninstall in Drupal 8

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