function GenericCacheBackendUnitTestBase::testDeleteMultiple

Test Drupal\Core\Cache\CacheBackendInterface::delete() and Drupal\Core\Cache\CacheBackendInterface::deleteMultiple().

File

core/modules/system/src/Tests/Cache/GenericCacheBackendUnitTestBase.php, line 437

Class

GenericCacheBackendUnitTestBase

Tests any cache backend.

Namespace

Code

public function testDeleteMultiple() {
    $backend = $this->getCacheBackend();
    // Set numerous testing keys.
    $backend->set('test1', 1);
    $backend->set('test2', 3);
    $backend->set('test3', 5);
    $backend->set('test4', 7);
    $backend->set('test5', 11);
    $backend->set('test6', 13);
    $backend->set('test7', 17);
    $backend->delete('test1');
    // Nonexistent key should not cause an error.
    $backend->delete('test23');
    $backend->deleteMultiple([
        'test3',
        'test5',
        'test7',
        // Nonexistent key should not cause an error.
'test19',
        // Nonexistent key should not cause an error.
'test21',
    ]);
    // Test if expected keys have been deleted.
    $this->assertIdentical(FALSE, $backend->get('test1'), "Cache id test1 deleted.");
    $this->assertIdentical(FALSE, $backend->get('test3'), "Cache id test3 deleted.");
    $this->assertIdentical(FALSE, $backend->get('test5'), "Cache id test5 deleted.");
    $this->assertIdentical(FALSE, $backend->get('test7'), "Cache id test7 deleted.");
    // Test if expected keys exist.
    $this->assertNotIdentical(FALSE, $backend->get('test2'), "Cache id test2 exists.");
    $this->assertNotIdentical(FALSE, $backend->get('test4'), "Cache id test4 exists.");
    $this->assertNotIdentical(FALSE, $backend->get('test6'), "Cache id test6 exists.");
    // Test if that expected keys do not exist.
    $this->assertIdentical(FALSE, $backend->get('test19'), "Cache id test19 does not exist.");
    $this->assertIdentical(FALSE, $backend->get('test21'), "Cache id test21 does not exist.");
    // Calling deleteMultiple() with an empty array should not cause an error.
    $this->assertFalse($backend->deleteMultiple([]));
}