Google\Cloud\Tests\Datastore\EntityMapperTest::testValueObjectResource PHP Method

    public function testValueObjectResource()
    {
        $string = 'test data';
        $stream = fopen('php://memory', 'r+');
        fwrite($stream, $string);
        rewind($stream);
        $res = $this->mapper->valueObject($stream);
        $this->assertEquals(base64_encode($string), $res['blobValue']);
    }