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());
}