function TestDiscoveryCacheContextTest::testContext

Tests that test context hashes are unique.

@expectedDeprecation Drupal\simpletest\TestDiscovery is deprecated in drupal:8.8.0 and is removed from drupal:9.0.0. Use \Drupal\Core\Test\TestDiscovery instead. See https://www.drupal.org/node/2949692

File

core/modules/simpletest/tests/src/Kernel/Cache/Context/TestDiscoveryCacheContextTest.php, line 25

Class

TestDiscoveryCacheContextTest

@group simpletest @group legacy

Namespace

Code

public function testContext() {
  // Mock test discovery.
  $discovery = $this->getMockBuilder(TestDiscovery::class)
    ->setMethods([
    'getTestClasses',
  ])
    ->disableOriginalConstructor()
    ->getMock();
  // Set getTestClasses() to return different results on subsequent calls.
  // This emulates changed tests in the filesystem.
  $discovery->expects($this->any())
    ->method('getTestClasses')
    ->willReturnOnConsecutiveCalls([
    'group1' => [
      'Test',
    ],
  ], [
    'group2' => [
      'Test2',
    ],
  ]);
  // Make our cache context object.
  $cache_context = new TestDiscoveryCacheContext($discovery, $this->container
    ->get('private_key'));
  // Generate a context hash.
  $context_hash = $cache_context->getContext();
  // Since the context stores the hash, we have to reset it.
  $hash_ref = new \ReflectionProperty($cache_context, 'hash');
  $hash_ref->setAccessible(TRUE);
  $hash_ref->setValue($cache_context, NULL);
  // And then assert that we did not generate the same hash for different
  // content.
  $this->assertNotSame($context_hash, $cache_context->getContext());
}