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trait AssertBlockAppearsTrait in Drupal 8

Same name and namespace in other branches
  1. 9 core/modules/block/tests/src/Functional/AssertBlockAppearsTrait.php \Drupal\Tests\block\Functional\AssertBlockAppearsTrait
  2. 10 core/modules/block/tests/src/Functional/AssertBlockAppearsTrait.php \Drupal\Tests\block\Functional\AssertBlockAppearsTrait

Provides test assertions for testing block appearance.

Can be used by test classes that extend \Drupal\Tests\BrowserTestBase.

Hierarchy

2 files declare their use of AssertBlockAppearsTrait
DisplayBlockTest.php in core/modules/block/tests/src/Functional/Views/DisplayBlockTest.php
ShortcutLinksTest.php in core/modules/shortcut/tests/src/Functional/ShortcutLinksTest.php

File

core/modules/block/tests/src/Functional/AssertBlockAppearsTrait.php, line 13

Namespace

Drupal\Tests\block\Functional
View source 
trait AssertBlockAppearsTrait {

  /**
   * Checks to see whether a block appears on the page.
   *
   * @param \Drupal\block\Entity\Block $block
   *   The block entity to find on the page.
   */
  protected function assertBlockAppears(Block $block) {
    $result = $this
      ->findBlockInstance($block);
    $this
      ->assertTrue(!empty($result), new FormattableMarkup('The block @id appears on the page', [
      '@id' => $block
        ->id(),
    ]));
  }

  /**
   * Checks to see whether a block does not appears on the page.
   *
   * @param \Drupal\block\Entity\Block $block
   *   The block entity to find on the page.
   */
  protected function assertNoBlockAppears(Block $block) {
    $result = $this
      ->findBlockInstance($block);
    $this
      ->assertFalse(!empty($result), new FormattableMarkup('The block @id does not appear on the page', [
      '@id' => $block
        ->id(),
    ]));
  }

  /**
   * Find a block instance on the page.
   *
   * @param \Drupal\block\Entity\Block $block
   *   The block entity to find on the page.
   *
   * @return array
   *   The result from the xpath query.
   */
  protected function findBlockInstance(Block $block) {
    return $this
      ->xpath('//div[@id = :id]', [
      ':id' => 'block-' . $block
        ->id(),
    ]);
  }

}

Members

Namesort descending Modifiers Type Description Overrides
AssertBlockAppearsTrait::assertBlockAppears protected function Checks to see whether a block appears on the page.
AssertBlockAppearsTrait::assertNoBlockAppears protected function Checks to see whether a block does not appears on the page.
AssertBlockAppearsTrait::findBlockInstance protected function Find a block instance on the page.