protected function AssertContentTrait::xpath in Drupal 8

Same name and namespace in other branches

1. 9 core/tests/Drupal/KernelTests/AssertContentTrait.php \Drupal\KernelTests\AssertContentTrait::xpath()

Performs an xpath search on the contents of the internal browser.

The search is relative to the root element (HTML tag normally) of the page.

Parameters

string $xpath: The xpath string to use in the search.

array $arguments: An array of arguments with keys in the form ':name' matching the placeholders in the query. The values may be either strings or numeric values.

Return value

\SimpleXMLElement[]|bool The return value of the xpath search or FALSE on failure. For details on the xpath string format and return values see the SimpleXML documentation.

See also

http://php.net/manual/function.simplexml-element-xpath.php

53 calls to AssertContentTrait::xpath()

AggregatorTestBase::createFeed in core/modules/aggregator/src/Tests/AggregatorTestBase.php

Creates an aggregator feed.

AreaEntityTest::doTestRender in core/modules/views/tests/src/Kernel/Handler/AreaEntityTest.php

Tests rendering the entity area handler.

AssertContentTrait::assertFieldByXPath in core/tests/Drupal/KernelTests/AssertContentTrait.php

Asserts that a field exists in the current page by the given XPath.

AssertContentTrait::assertFieldChecked in core/tests/Drupal/KernelTests/AssertContentTrait.php

Asserts that a checkbox field in the current page is checked.

AssertContentTrait::assertLink in core/tests/Drupal/KernelTests/AssertContentTrait.php

Passes if a link with the specified label is found.

... See full list

File

core/tests/Drupal/KernelTests/AssertContentTrait.php, line 226

Class

AssertContentTrait

Provides test methods to assert content.

Namespace

Drupal\KernelTests

Code

protected function xpath($xpath, array $arguments = []) {
  if ($this
    ->parse()) {
    $xpath = $this
      ->buildXPathQuery($xpath, $arguments);
    $result = $this->elements
      ->xpath($xpath);

    // Some combinations of PHP / libxml versions return an empty array
    // instead of the documented FALSE. Forcefully convert any falsish values
    // to an empty array to allow foreach(...) constructions.
    return $result ?: [];
  }
  return FALSE;
}