550 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			550 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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declare(strict_types=1);
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namespace Drupal\Tests;
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use Behat\Mink\Driver\BrowserKitDriver;
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use Drupal\Component\Utility\Html;
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use Drupal\Component\Utility\UrlHelper;
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use Drupal\Core\Session\AccountInterface;
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use Drupal\Core\Session\AnonymousUserSession;
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use Drupal\Core\Test\RefreshVariablesTrait;
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use Drupal\Core\Url;
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use Symfony\Component\CssSelector\CssSelectorConverter;
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/**
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 * Provides UI helper methods.
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 */
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trait UiHelperTrait {
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  use BrowserHtmlDebugTrait;
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  use RefreshVariablesTrait;
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  /**
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   * The current user logged in using the Mink controlled browser.
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   *
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   * @var \Drupal\user\UserInterface
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   */
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  protected $loggedInUser = FALSE;
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  /**
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   * Use one-time login links instead of submitting the login form.
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   */
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  protected bool $useOneTimeLoginLinks = TRUE;
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  /**
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   * The number of meta refresh redirects to follow, or NULL if unlimited.
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   *
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   * @var null|int
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   */
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  protected $maximumMetaRefreshCount = NULL;
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  /**
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   * The number of meta refresh redirects followed during ::drupalGet().
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   *
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   * @var int
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   */
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  protected $metaRefreshCount = 0;
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  /**
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   * Fills and submits a form.
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   *
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   * @param array $edit
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   *   Field data in an associative array. Changes the current input fields
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   *   (where possible) to the values indicated.
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   *
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   *   A checkbox can be set to TRUE to be checked and should be set to FALSE to
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   *   be unchecked.
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   * @param string $submit
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   *   Value of the submit button whose click is to be emulated. For example,
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   *   'Save'. The processing of the request depends on this value. For example,
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   *   a form may have one button with the value 'Save' and another button with
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   *   the value 'Delete', and execute different code depending on which one is
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   *   clicked.
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   * @param string $form_html_id
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   *   (optional) HTML ID of the form to be submitted. On some pages
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   *   there are many identical forms, so just using the value of the submit
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   *   button is not enough. For example: 'trigger-node-presave-assign-form'.
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   *   Note that this is not the Drupal $form_id, but rather the HTML ID of the
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   *   form, which is typically the same thing but with hyphens replacing the
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   *   underscores.
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   */
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  protected function submitForm(array $edit, $submit, $form_html_id = NULL) {
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    $assert_session = $this->assertSession();
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    $submit_button = $assert_session->buttonExists($submit);
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    // Check if button has a form attribute set.
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    if ($form_id = $submit_button->getAttribute('form')) {
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      $form = $assert_session->elementExists('xpath', "//form[@id='$form_id']");
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      $action = $form->getAttribute('action');
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    }
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    // Get the form.
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    elseif (isset($form_html_id)) {
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      $form = $assert_session->elementExists('xpath', "//form[@id='$form_html_id']");
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      $submit_button = $assert_session->buttonExists($submit, $form);
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      $action = $form->getAttribute('action');
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    }
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    else {
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      $form = $assert_session->elementExists('xpath', './ancestor::form', $submit_button);
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      $action = $form->getAttribute('action');
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    }
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    // Edit the form values.
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    foreach ($edit as $name => $value) {
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      $field = $assert_session->fieldExists($name, $form);
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      $value = match ($field->getAttribute('type')) {
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        // Provide support for the values '1' and '0' for checkboxes instead of
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        // TRUE and FALSE.
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        // @todo Get rid of supporting 1/0 by converting all tests cases using
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        // this to boolean values.
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        'checkbox' => (bool) $value,
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        // Mink only allows strings for text, number and radio button values.
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        'text', 'number', 'radio' => (string) $value,
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        default => $value,
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      };
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      $field->setValue($value);
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    }
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    // Submit form.
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    $this->prepareRequest();
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    $submit_button->press();
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    // Ensure that any changes to variables in the other thread are picked up.
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    $this->refreshVariables();
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    // Check if there are any meta refresh redirects (like Batch API pages).
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    if ($this->checkForMetaRefresh()) {
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      // We are finished with all meta refresh redirects, so reset the counter.
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      $this->metaRefreshCount = 0;
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    }
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    // Log only for WebDriverTestBase tests because for tests using
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    // DrupalTestBrowser we log with ::getResponseLogHandler.
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    if ($this->htmlOutputEnabled && !$this->isTestUsingGuzzleClient()) {
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      $out = $this->getSession()->getPage()->getContent();
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      $html_output = 'POST request to: ' . $action .
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        '<hr />Ending URL: ' . $this->getSession()->getCurrentUrl();
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      $html_output .= '<hr />' . $out;
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      $html_output .= $this->getHtmlOutputHeaders();
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      $this->htmlOutput($html_output);
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    }
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  }
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  /**
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   * Logs in a user using the Mink controlled browser.
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   *
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   * If a user is already logged in, then the current user is logged out before
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   * logging in the specified user.
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   *
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   * Note that neither the current user nor the passed-in user object is
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   * populated with data of the logged in user. If you need full access to the
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   * user object after logging in, it must be updated manually. If you also need
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   * access to the plain-text password of the user (set by drupalCreateUser()),
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   * e.g. to log in the same user again, then it must be re-assigned manually.
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   * For example:
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   * @code
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   *   // Create a user.
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   *   $account = $this->drupalCreateUser([]);
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   *   $this->drupalLogin($account);
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   *   // Load real user object.
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   *   $pass_raw = $account->passRaw;
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   *   $account = User::load($account->id());
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   *   $account->passRaw = $pass_raw;
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   * @endcode
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   *
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   * @param \Drupal\Core\Session\AccountInterface $account
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   *   User object representing the user to log in.
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   *
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   * @see drupalCreateUser()
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   */
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  protected function drupalLogin(AccountInterface $account) {
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    if ($this->loggedInUser) {
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      $this->drupalLogout();
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    }
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    if ($this->useOneTimeLoginLinks) {
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      // Reload to get latest login timestamp.
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      $storage = \Drupal::entityTypeManager()->getStorage('user');
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      /** @var \Drupal\user\UserInterface $accountUnchanged */
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      $accountUnchanged = $storage->loadUnchanged($account->id());
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      $login = user_pass_reset_url($accountUnchanged) . '/login?destination=user/' . $account->id();
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      $this->drupalGet($login);
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    }
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    else {
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      $this->drupalGet(Url::fromRoute('user.login'));
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      $this->submitForm([
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        'name' => $account->getAccountName(),
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        'pass' => $account->passRaw,
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      ], 'Log in');
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    }
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    // @see ::drupalUserIsLoggedIn()
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    $account->sessionId = $this->getSession()->getCookie(\Drupal::service('session_configuration')->getOptions(\Drupal::request())['name']);
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    $this->assertTrue($this->drupalUserIsLoggedIn($account), "User {$account->getAccountName()} successfully logged in.");
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    $this->loggedInUser = $account;
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    $this->container->get('current_user')->setAccount($account);
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  }
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  /**
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   * Logs a user out of the Mink controlled browser and confirms.
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   *
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   * Confirms logout by checking the login page.
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   */
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  protected function drupalLogout() {
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    // Make a request to the logout page, and redirect to the user page, the
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    // idea being if you were properly logged out you should be seeing a login
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    // screen.
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    $assert_session = $this->assertSession();
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    $destination = Url::fromRoute('user.page')->toString();
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    $this->drupalGet(Url::fromRoute('user.logout.confirm', options: ['query' => ['destination' => $destination]]));
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    // Target the submit button using the name rather than the value to work
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    // regardless of the user interface language.
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    $this->submitForm([], 'op', 'user-logout-confirm');
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    $assert_session->fieldExists('name');
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    $assert_session->fieldExists('pass');
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    $this->drupalResetSession();
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  }
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  /**
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   * Resets the current active session back to Anonymous session.
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   */
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  protected function drupalResetSession(): void {
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    // @see BrowserTestBase::drupalUserIsLoggedIn()
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    unset($this->loggedInUser->sessionId);
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    $this->loggedInUser = FALSE;
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    \Drupal::currentUser()->setAccount(new AnonymousUserSession());
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  }
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  /**
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   * Returns WebAssert object.
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   *
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   * @param string $name
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   *   (optional) Name of the session. Defaults to the active session.
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   *
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   * @return \Drupal\Tests\WebAssert
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   *   A new web-assert option for asserting the presence of elements with.
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   */
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  public function assertSession($name = NULL) {
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    $this->addToAssertionCount(1);
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    return new WebAssert($this->getSession($name), $this->baseUrl);
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  }
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  /**
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   * Retrieves a Drupal path or an absolute path.
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   *
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   * @param string|\Drupal\Core\Url $path
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   *   Drupal path or URL to load into Mink controlled browser.
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   * @param array $options
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   *   (optional) Options to be forwarded to the URL generator.
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   * @param string[] $headers
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   *   An array containing additional HTTP request headers, the array keys are
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   *   the header names and the array values the header values. This is useful
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   *   to set for example the "Accept-Language" header for requesting the page
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   *   in a different language. Note that not all headers are supported, for
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   *   example the "Accept" header is always overridden by the browser. For
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   *   testing REST APIs it is recommended to obtain a separate HTTP client
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   *   using getHttpClient() and performing requests that way.
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   *
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   * @return string
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   *   The retrieved HTML string, also available as $this->getRawContent()
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   *
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   * @see \Drupal\Tests\BrowserTestBase::getHttpClient()
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   */
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  protected function drupalGet($path, array $options = [], array $headers = []) {
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    $options['absolute'] = TRUE;
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    $url = $this->buildUrl($path, $options);
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    $session = $this->getSession();
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    $this->prepareRequest();
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    foreach ($headers as $header_name => $header_value) {
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      if (is_int($header_name)) {
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        @trigger_error('Passing an integer as header name to ' . __METHOD__ . '() is deprecated in drupal:11.1.0 and will be removed from drupal:12.0.0. Update the calling code to pass the header name as a key. See https://www.drupal.org/node/3456178', E_USER_DEPRECATED);
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        [$header_name, $header_value] = explode(':', $header_value);
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      }
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      if (is_null($header_value)) {
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        @trigger_error('Using null as a header value to ' . __METHOD__ . '() is deprecated in drupal:11.1.0 and will be removed from drupal:12.0.0. Use an empty string instead. See https://www.drupal.org/node/3456233', E_USER_DEPRECATED);
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        $header_value = '';
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      }
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      $session->setRequestHeader($header_name, $header_value);
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    }
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    $session->visit($url);
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    $out = $session->getPage()->getContent();
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    // Ensure that any changes to variables in the other thread are picked up.
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    $this->refreshVariables();
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    // Replace original page output with new output from redirected page(s).
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    if ($new = $this->checkForMetaRefresh()) {
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      $out = $new;
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      // We are finished with all meta refresh redirects, so reset the counter.
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      $this->metaRefreshCount = 0;
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    }
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    // Log only for WebDriverTestBase tests because for BrowserKitDriver we log
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    // with ::getResponseLogHandler.
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    if ($this->htmlOutputEnabled && !$this->isTestUsingGuzzleClient()) {
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      $html_output = 'GET request to: ' . $url .
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        '<hr />Ending URL: ' . $this->getSession()->getCurrentUrl();
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      $html_output .= '<hr />' . $out;
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      $html_output .= $this->getHtmlOutputHeaders();
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      $this->htmlOutput($html_output);
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    }
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    return $out;
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  }
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  /**
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   * Builds an absolute URL from a system path or a URL object.
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   *
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   * @param string|\Drupal\Core\Url $path
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   *   A system path or a URL object.
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   * @param array $options
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   *   Options to be passed to Url::fromUri().
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   *
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   * @return string
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   *   An absolute URL string.
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   */
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  protected function buildUrl($path, array $options = []) {
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    global $base_path;
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    if ($path instanceof Url) {
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      $url_options = $path->getOptions();
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      $options = $url_options + $options;
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      $path->setOptions($options);
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      return $path->setAbsolute()->toString();
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    }
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    // The URL generator service is not necessarily available yet; e.g., in
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    // interactive installer tests.
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    elseif (\Drupal::hasService('url_generator')) {
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      // Strip $base_path, if existent.
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      $length = strlen($base_path);
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      if (substr($path, 0, $length) === $base_path) {
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        $path = substr($path, $length);
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      }
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      // Additionally strip any forward slashes.
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      if (strlen($path) > 1) {
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        $path = ltrim($path, '/');
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      }
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      $force_internal = isset($options['external']) && $options['external'] == FALSE;
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      if (!$force_internal && UrlHelper::isExternal($path)) {
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        return Url::fromUri($path, $options)->toString();
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      }
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      else {
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        $uri = $path === '<front>' ? 'base:/' : 'base:/' . $path;
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        // Path processing is needed for language prefixing.  Skip it when a
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        // path that may look like an external URL is being used as internal.
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        $options['path_processing'] = !$force_internal;
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        return Url::fromUri($uri, $options)
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          ->setAbsolute()
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          ->toString();
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      }
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    }
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    else {
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      return $this->getAbsoluteUrl($path);
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    }
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  }
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  /**
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   * Takes a path and returns an absolute path.
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   *
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   * @param string $path
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   *   A path from the Mink controlled browser content.
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   *
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   * @return string
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   *   The $path with $base_url prepended, if necessary.
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   */
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  protected function getAbsoluteUrl($path) {
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    global $base_url, $base_path;
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    $parts = parse_url($path);
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    if (empty($parts['host'])) {
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      // Ensure that we have a string (and no xpath object).
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      $path = (string) $path;
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      // Strip $base_path, if existent.
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      $length = strlen($base_path);
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      if (substr($path, 0, $length) === $base_path) {
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        $path = substr($path, $length);
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      }
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      // Ensure that we have an absolute path.
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      if (empty($path) || $path[0] !== '/') {
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        $path = '/' . $path;
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      }
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      // Finally, prepend the $base_url.
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      $path = $base_url . $path;
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    }
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    return $path;
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  }
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  /**
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   * Prepare for a request to testing site.
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   *
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   * The testing site is protected via a SIMPLETEST_USER_AGENT cookie that is
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   * checked by drupal_valid_test_ua().
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   *
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   * @see drupal_valid_test_ua()
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   */
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  protected function prepareRequest() {
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    $session = $this->getSession();
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    $session->setCookie('SIMPLETEST_USER_AGENT', drupal_generate_test_ua($this->databasePrefix));
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  }
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  /**
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   * Returns whether a given user account is logged in.
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   *
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   * @param \Drupal\Core\Session\AccountInterface $account
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   *   The user account object to check.
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   *
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   * @return bool
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   *   Return TRUE if the user is logged in, FALSE otherwise.
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   */
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  protected function drupalUserIsLoggedIn(AccountInterface $account): bool {
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    $logged_in = FALSE;
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    if (isset($account->sessionId)) {
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      $session_handler = \Drupal::service('session_handler.storage');
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      $logged_in = (bool) $session_handler->read($account->sessionId);
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    }
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    return $logged_in;
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  }
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  /**
 | 
						|
   * Clicks the element with the given CSS selector.
 | 
						|
   *
 | 
						|
   * @param string $css_selector
 | 
						|
   *   The CSS selector identifying the element to click.
 | 
						|
   */
 | 
						|
  protected function click($css_selector) {
 | 
						|
    $starting_url = $this->getSession()->getCurrentUrl();
 | 
						|
    $this->getSession()->getDriver()->click($this->cssSelectToXpath($css_selector));
 | 
						|
    // Log only for WebDriverTestBase tests because for BrowserKitDriver we log
 | 
						|
    // with ::getResponseLogHandler.
 | 
						|
    if ($this->htmlOutputEnabled && !$this->isTestUsingGuzzleClient()) {
 | 
						|
      $out = $this->getSession()->getPage()->getContent();
 | 
						|
      $html_output =
 | 
						|
        'Clicked element with CSS selector: ' . $css_selector .
 | 
						|
        '<hr />Starting URL: ' . $starting_url .
 | 
						|
        '<hr />Ending URL: ' . $this->getSession()->getCurrentUrl();
 | 
						|
      $html_output .= '<hr />' . $out;
 | 
						|
      $html_output .= $this->getHtmlOutputHeaders();
 | 
						|
      $this->htmlOutput($html_output);
 | 
						|
    }
 | 
						|
  }
 | 
						|
 | 
						|
  /**
 | 
						|
   * Follows a link by complete name.
 | 
						|
   *
 | 
						|
   * Will click the first link found with this link text.
 | 
						|
   *
 | 
						|
   * If the link is discovered and clicked, the test passes. Fail otherwise.
 | 
						|
   *
 | 
						|
   * @param string|\Drupal\Component\Render\MarkupInterface $label
 | 
						|
   *   Text between the anchor tags.
 | 
						|
   * @param int $index
 | 
						|
   *   (optional) The index number for cases where multiple links have the same
 | 
						|
   *   text. Defaults to 0.
 | 
						|
   */
 | 
						|
  protected function clickLink($label, $index = 0) {
 | 
						|
    $label = (string) $label;
 | 
						|
    $links = $this->getSession()->getPage()->findAll('named', ['link', $label]);
 | 
						|
    $this->assertArrayHasKey($index, $links, 'The link ' . $label . ' was not found on the page.');
 | 
						|
    $links[$index]->click();
 | 
						|
  }
 | 
						|
 | 
						|
  /**
 | 
						|
   * Retrieves the plain-text content from the current page.
 | 
						|
   */
 | 
						|
  protected function getTextContent() {
 | 
						|
    return $this->getSession()->getPage()->getText();
 | 
						|
  }
 | 
						|
 | 
						|
  /**
 | 
						|
   * Get the current URL from the browser.
 | 
						|
   *
 | 
						|
   * @return string
 | 
						|
   *   The current URL.
 | 
						|
   */
 | 
						|
  protected function getUrl() {
 | 
						|
    return $this->getSession()->getCurrentUrl();
 | 
						|
  }
 | 
						|
 | 
						|
  /**
 | 
						|
   * Checks for meta refresh tag and if found call drupalGet() recursively.
 | 
						|
   *
 | 
						|
   * This function looks for the http-equiv attribute to be set to "Refresh" and
 | 
						|
   * is case-insensitive.
 | 
						|
   *
 | 
						|
   * @return string|false
 | 
						|
   *   Either the new page content or FALSE.
 | 
						|
   */
 | 
						|
  protected function checkForMetaRefresh() {
 | 
						|
    $refresh = $this->cssSelect('meta[http-equiv="Refresh"], meta[http-equiv="refresh"]');
 | 
						|
    if (!empty($refresh) && (!isset($this->maximumMetaRefreshCount) || $this->metaRefreshCount < $this->maximumMetaRefreshCount)) {
 | 
						|
      // Parse the content attribute of the meta tag for the format:
 | 
						|
      // "[delay]: URL=[page_to_redirect_to]".
 | 
						|
      if (preg_match('/\d+;\s*URL=\'?(?<url>[^\']*)/i', $refresh[0]->getAttribute('content'), $match)) {
 | 
						|
        $this->metaRefreshCount++;
 | 
						|
        return $this->drupalGet($this->getAbsoluteUrl(Html::decodeEntities($match['url'])));
 | 
						|
      }
 | 
						|
    }
 | 
						|
    return FALSE;
 | 
						|
  }
 | 
						|
 | 
						|
  /**
 | 
						|
   * Searches elements using a CSS selector in the raw content.
 | 
						|
   *
 | 
						|
   * The search is relative to the root element (HTML tag normally) of the page.
 | 
						|
   *
 | 
						|
   * @param string $selector
 | 
						|
   *   CSS selector to use in the search.
 | 
						|
   *
 | 
						|
   * @return \Behat\Mink\Element\NodeElement[]
 | 
						|
   *   The list of elements on the page that match the selector.
 | 
						|
   */
 | 
						|
  protected function cssSelect($selector) {
 | 
						|
    return $this->getSession()->getPage()->findAll('css', $selector);
 | 
						|
  }
 | 
						|
 | 
						|
  /**
 | 
						|
   * Translates a CSS expression to its XPath equivalent.
 | 
						|
   *
 | 
						|
   * The search is relative to the root element (HTML tag normally) of the page.
 | 
						|
   *
 | 
						|
   * @param string $selector
 | 
						|
   *   CSS selector to use in the search.
 | 
						|
   * @param bool $html
 | 
						|
   *   (optional) Enables HTML support. Disable it for XML documents.
 | 
						|
   * @param string $prefix
 | 
						|
   *   (optional) The prefix for the XPath expression.
 | 
						|
   *
 | 
						|
   * @return string
 | 
						|
   *   The equivalent XPath of a CSS expression.
 | 
						|
   */
 | 
						|
  protected function cssSelectToXpath($selector, $html = TRUE, $prefix = 'descendant-or-self::'): string {
 | 
						|
    return (new CssSelectorConverter($html))->toXPath($selector, $prefix);
 | 
						|
  }
 | 
						|
 | 
						|
  /**
 | 
						|
   * Determines if test is using DrupalTestBrowser.
 | 
						|
   *
 | 
						|
   * @return bool
 | 
						|
   *   TRUE if test is using DrupalTestBrowser.
 | 
						|
   */
 | 
						|
  protected function isTestUsingGuzzleClient(): bool {
 | 
						|
    $driver = $this->getSession()->getDriver();
 | 
						|
    if ($driver instanceof BrowserKitDriver) {
 | 
						|
      return $driver->getClient() instanceof DrupalTestBrowser;
 | 
						|
    }
 | 
						|
    return FALSE;
 | 
						|
  }
 | 
						|
 | 
						|
}
 |