getMockBuilder('Ramsey\Uuid\Converter\NumberConverterInterface')->getMock(); $builder = new DefaultUuidBuilder($converter); $codec = $this->getMockBuilder('Ramsey\Uuid\Codec\CodecInterface')->getMock(); $fields = [ 'time_low' => '754cd475', 'time_mid' => '7e58', 'time_hi_and_version' => '5411', 'clock_seq_hi_and_reserved' => '73', 'clock_seq_low' => '22', 'node' => 'be0725c8ce01' ]; $result = $builder->build($codec, $fields); $this->assertInstanceOf('Ramsey\Uuid\Uuid', $result); } }