public function PagerTest::testPagerQueryParametersAndCacheContext in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/system/tests/src/Functional/Pager/PagerTest.php \Drupal\Tests\system\Functional\Pager\PagerTest::testPagerQueryParametersAndCacheContext()

Test proper functioning of the query parameters and the pager cache context.

File

core/modules/system/tests/src/Functional/Pager/PagerTest.php, line 84

Class

PagerTest

Tests pager functionality.

Namespace

Drupal\Tests\system\Functional\Pager

Code

public function testPagerQueryParametersAndCacheContext() {

  // First page.
  $this
    ->drupalGet('pager-test/query-parameters');
  $this
    ->assertText(t('Pager calls: 0'), 'Initial call to pager shows 0 calls.');
  $this
    ->assertText('[url.query_args.pagers:0]=0.0');
  $this
    ->assertCacheContext('url.query_args');

  // Go to last page, the count of pager calls need to go to 1.
  $elements = $this
    ->xpath('//li[contains(@class, :class)]/a', [
    ':class' => 'pager__item--last',
  ]);
  $elements[0]
    ->click();
  $this
    ->assertText(t('Pager calls: 1'), 'First link call to pager shows 1 calls.');
  $this
    ->assertText('[url.query_args.pagers:0]=0.60');
  $this
    ->assertCacheContext('url.query_args');

  // Reset counter to 0.
  $this
    ->drupalGet('pager-test/query-parameters');

  // Go back to first page, the count of pager calls need to go to 2.
  $elements = $this
    ->xpath('//li[contains(@class, :class)]/a', [
    ':class' => 'pager__item--last',
  ]);
  $elements[0]
    ->click();
  $elements = $this
    ->xpath('//li[contains(@class, :class)]/a', [
    ':class' => 'pager__item--first',
  ]);
  $elements[0]
    ->click();
  $this
    ->assertText(t('Pager calls: 2'), 'Second link call to pager shows 2 calls.');
  $this
    ->assertText('[url.query_args.pagers:0]=0.0');
  $this
    ->assertCacheContext('url.query_args');
}