public static function LinkGeneratorTest::assertLink in Drupal 8

Same name and namespace in other branches

1. 9 core/tests/Drupal/Tests/Core/Utility/LinkGeneratorTest.php \Drupal\Tests\Core\Utility\LinkGeneratorTest::assertLink()

Checks that a link with certain properties exists in a given HTML snippet.

Parameters

array $properties: An associative array of link properties, with the following keys:

• attributes: optional array of HTML attributes that should be present.
• content: optional link content.

\Drupal\Component\Render\MarkupInterface $html: The HTML to check.

int $count: How many times the link should be present in the HTML. Defaults to 1.

10 calls to LinkGeneratorTest::assertLink()

LinkGeneratorTest::testGenerate in core/tests/Drupal/Tests/Core/Utility/LinkGeneratorTest.php

Tests the generate() method with a route.

LinkGeneratorTest::testGenerateActive in core/tests/Drupal/Tests/Core/Utility/LinkGeneratorTest.php

Tests the active class on the link method.

LinkGeneratorTest::testGenerateAttributes in core/tests/Drupal/Tests/Core/Utility/LinkGeneratorTest.php

Tests the link method with additional attributes.

LinkGeneratorTest::testGenerateExternal in core/tests/Drupal/Tests/Core/Utility/LinkGeneratorTest.php

Tests the generate() method with an external URL.

LinkGeneratorTest::testGenerateHrefs in core/tests/Drupal/Tests/Core/Utility/LinkGeneratorTest.php

Tests the link method with certain hrefs.

... See full list

File

core/tests/Drupal/Tests/Core/Utility/LinkGeneratorTest.php, line 624

Class

LinkGeneratorTest

@coversDefaultClass \Drupal\Core\Utility\LinkGenerator @group Utility

Namespace

Drupal\Tests\Core\Utility

Code

public static function assertLink(array $properties, MarkupInterface $html, $count = 1) {

  // Provide default values.
  $properties += [
    'attributes' => [],
  ];

  // Create an XPath query that selects a link element.
  $query = '//a';

  // Append XPath predicates for the attributes and content text.
  $predicates = [];
  foreach ($properties['attributes'] as $attribute => $value) {
    $predicates[] = "@{$attribute}='{$value}'";
  }
  if (!empty($properties['content'])) {
    $predicates[] = "contains(.,'{$properties['content']}')";
  }
  if (!empty($predicates)) {
    $query .= '[' . implode(' and ', $predicates) . ']';
  }

  // Execute the query.
  $document = new \DOMDocument();
  $document
    ->loadHTML($html);
  $xpath = new \DOMXPath($document);
  self::assertEquals($count, $xpath
    ->query($query)->length);
}