function GenericCacheBackendUnitTestBase::testSetGet

Tests the get and set methods of Drupal\Core\Cache\CacheBackendInterface.

File

core/tests/Drupal/KernelTests/Core/Cache/GenericCacheBackendUnitTestBase.php, line 136

Class

GenericCacheBackendUnitTestBase

Tests any cache backend.

Namespace

Code

public function testSetGet() {
    $backend = $this->getCacheBackend();
    $this->assertFalse($backend->get('test1'), "Backend does not contain data for cache id test1.");
    $with_backslash = [
        'foo' => '\\Drupal\\foo\\Bar',
    ];
    $backend->set('test1', $with_backslash);
    $cached = $backend->get('test1');
    $this->assertIsObject($cached);
    $this->assertSame($with_backslash, $cached->data);
    $this->assertTrue($cached->valid, 'Item is marked as valid.');
    // We need to round because microtime may be rounded up in the backend.
    $this->assertGreaterThanOrEqual(REQUEST_TIME, $cached->created);
    $this->assertLessThanOrEqual(round(microtime(TRUE), 3), $cached->created);
    $this->assertEquals(Cache::PERMANENT, $cached->expire, 'Expire time is correct.');
    $this->assertFalse($backend->get('test2'), "Backend does not contain data for cache id test2.");
    $backend->set('test2', [
        'value' => 3,
    ], REQUEST_TIME + 3);
    $cached = $backend->get('test2');
    $this->assertIsObject($cached);
    $this->assertSame([
        'value' => 3,
    ], $cached->data);
    $this->assertTrue($cached->valid, 'Item is marked as valid.');
    $this->assertGreaterThanOrEqual(REQUEST_TIME, $cached->created);
    $this->assertLessThanOrEqual(round(microtime(TRUE), 3), $cached->created);
    $this->assertEquals(REQUEST_TIME + 3, $cached->expire, 'Expire time is correct.');
    $backend->set('test3', 'foobar', REQUEST_TIME - 3);
    $this->assertFalse($backend->get('test3'), 'Invalid item not returned.');
    $cached = $backend->get('test3', TRUE);
    $this->assertIsObject($cached);
    $this->assertFalse($cached->valid, 'Item is marked as valid.');
    $this->assertGreaterThanOrEqual(REQUEST_TIME, $cached->created);
    $this->assertLessThanOrEqual(round(microtime(TRUE), 3), $cached->created);
    $this->assertEquals(REQUEST_TIME - 3, $cached->expire, 'Expire time is correct.');
    $this->assertFalse($backend->get('test4'), "Backend does not contain data for cache id test4.");
    $with_eof = [
        'foo' => "\nEOF\ndata",
    ];
    $backend->set('test4', $with_eof);
    $cached = $backend->get('test4');
    $this->assertIsObject($cached);
    $this->assertSame($with_eof, $cached->data);
    $this->assertTrue($cached->valid, 'Item is marked as valid.');
    $this->assertGreaterThanOrEqual(REQUEST_TIME, $cached->created);
    $this->assertLessThanOrEqual(round(microtime(TRUE), 3), $cached->created);
    $this->assertEquals(Cache::PERMANENT, $cached->expire, 'Expire time is correct.');
    $this->assertFalse($backend->get('test5'), "Backend does not contain data for cache id test5.");
    $with_eof_and_semicolon = [
        'foo' => "\nEOF;\ndata",
    ];
    $backend->set('test5', $with_eof_and_semicolon);
    $cached = $backend->get('test5');
    $this->assertIsObject($cached);
    $this->assertSame($with_eof_and_semicolon, $cached->data);
    $this->assertTrue($cached->valid, 'Item is marked as valid.');
    $this->assertGreaterThanOrEqual(REQUEST_TIME, $cached->created);
    $this->assertLessThanOrEqual(round(microtime(TRUE), 3), $cached->created);
    $this->assertEquals(Cache::PERMANENT, $cached->expire, 'Expire time is correct.');
    $with_variable = [
        'foo' => '$bar',
    ];
    $backend->set('test6', $with_variable);
    $cached = $backend->get('test6');
    $this->assertIsObject($cached);
    $this->assertSame($with_variable, $cached->data);
    // Make sure that a cached object is not affected by changing the original.
    $data = new \stdClass();
    $data->value = 1;
    $data->obj = new \stdClass();
    $data->obj->value = 2;
    $backend->set('test7', $data);
    $expected_data = clone $data;
    // Add a property to the original. It should not appear in the cached data.
    $data->this_should_not_be_in_the_cache = TRUE;
    $cached = $backend->get('test7');
    $this->assertIsObject($cached);
    $this->assertEquals($expected_data, $cached->data);
    $this->assertFalse(isset($cached->data->this_should_not_be_in_the_cache));
    // Add a property to the cache data. It should not appear when we fetch
    // the data from cache again.
    $cached->data->this_should_not_be_in_the_cache = TRUE;
    $fresh_cached = $backend->get('test7');
    $this->assertFalse(isset($fresh_cached->data->this_should_not_be_in_the_cache));
    // Check with a long key.
    $cid = str_repeat('a', 300);
    $backend->set($cid, 'test');
    $this->assertEquals('test', $backend->get($cid)->data);
    // Check that the cache key is case sensitive.
    $backend->set('TEST8', 'value');
    $this->assertEquals('value', $backend->get('TEST8')->data);
    $this->assertFalse($backend->get('test8'));
    // Calling ::set() with invalid cache tags. This should fail an assertion.
    try {
        $backend->set('assertion_test', 'value', Cache::PERMANENT, [
            'node' => [
                3,
                5,
                7,
            ],
        ]);
        $this->fail('::set() was called with invalid cache tags, but runtime assertion did not fail.');
    } catch (\AssertionError $e) {
        // Do nothing; continue testing in extending classes.
    }
}