public function ResourceHintsAttachmentTest::testResourceHints in Resource Hints 8

Test resource hints.

File

tests/src/Functional/ResourceHintsAttachmentTest.php, line 46

Class

ResourceHintsAttachmentTest

Tests resource hint output based on config.

Namespace

Drupal\Tests\resource_hints\Functional

Code

public function testResourceHints() {
  $this
    ->drupalLogin($this->user);
  $assert = $this
    ->assertSession();
  $this
    ->drupalGet('admin/config/development/performance/resources-hints');

  // DNS Prefetch Header.
  $this
    ->submitForm([
    'dns_prefetch_resources' => '//dns-prefetch.com',
  ], t('Save configuration'));
  $assert
    ->responseHeaderContains('X-DNS-Prefetch-Control', 'on');
  $assert
    ->responseHeaderContains('Link', '<//dns-prefetch.com>; rel="dns-prefetch"');
  $assert
    ->elementNotExists('css', 'link[rel="dns-prefetch"][href="//dns-prefetch.com"]');

  // DNS Prefetch Element.
  $this
    ->submitForm([
    'dns_prefetch_output' => '1',
  ], t('Save configuration'));
  $assert
    ->elementExists('css', 'meta[http-equiv="x-dns-prefetch-control"][content="on"]');
  $assert
    ->responseHeaderNotContains('Link', '<//dns-prefetch.com>; rel="dns-prefetch"');
  $assert
    ->elementExists('css', 'link[rel="dns-prefetch"][href="//dns-prefetch.com"]');

  // X-DNS-Prefetch-Control off.
  $this
    ->submitForm([
    'dns_prefetch_output' => '0',
    'dns_prefetch_control' => 'off',
  ], t('Save configuration'));
  $assert
    ->responseHeaderContains('X-DNS-Prefetch-Control', 'off');
  $assert
    ->responseHeaderNotContains('Link', '<//dns-prefetch.com>; rel="dns-prefetch"');
  $assert
    ->elementNotExists('css', 'link[rel="dns-prefetch"][href="//dns-prefetch.com"]');

  // X-DNS-Prefetch-Control off.
  $this
    ->submitForm([
    'dns_prefetch_output' => '1',
  ], t('Save configuration'));
  $assert
    ->elementExists('css', 'meta[http-equiv="x-dns-prefetch-control"][content="off"]');
  $assert
    ->responseHeaderNotContains('Link', '<//dns-prefetch.com>; rel="dns-prefetch"');
  $assert
    ->elementNotExists('css', 'link[rel="dns-prefetch"][href="//dns-prefetch.com"]');

  // Preconnect Header.
  $this
    ->submitForm([
    'preconnect_resources' => '//preconnect.com',
  ], t('Save configuration'));
  $assert
    ->responseHeaderContains('Link', '<//preconnect.com>; rel="preconnect"');
  $assert
    ->elementNotExists('css', 'link[rel="preconnect"][href="//preconnect.com"]');

  // Preconnect Element.
  $this
    ->submitForm([
    'preconnect_output' => '1',
  ], t('Save configuration'));
  $assert
    ->responseHeaderNotContains('Link', '<//preconnect.com>; rel="preconnect"');
  $assert
    ->elementExists('css', 'link[rel="preconnect"][href="//preconnect.com"]');

  // Prefetch Header.
  $this
    ->submitForm([
    'prefetch_resources' => '//prefetch.com',
  ], t('Save configuration'));
  $assert
    ->responseHeaderContains('Link', '<//prefetch.com>; rel="prefetch"');
  $assert
    ->elementNotExists('css', 'link[rel="prefetch"][href="//prefetch.com"]');

  // Prefetch Element.
  $this
    ->submitForm([
    'prefetch_output' => '1',
  ], t('Save configuration'));
  $assert
    ->responseHeaderNotContains('Link', '<//prefetch.com>; rel="prefetch"');
  $assert
    ->elementExists('css', 'link[rel="prefetch"][href="//prefetch.com"]');

  // Prerender Header.
  $this
    ->submitForm([
    'prerender_resources' => '//prerender.com',
  ], t('Save configuration'));
  $assert
    ->responseHeaderContains('Link', '<//prerender.com>; rel="prerender"');
  $assert
    ->elementNotExists('css', 'link[rel="prerender"][href="//prerender.com"]');

  // Prerender Element.
  $this
    ->submitForm([
    'prerender_output' => '1',
  ], t('Save configuration'));
  $assert
    ->responseHeaderNotContains('Link', '<//prerender.com>; rel="prerender"');
  $assert
    ->elementExists('css', 'link[rel="prerender"][href="//prerender.com"]');
}