'Test that internal always includes the offset if forced'

def test_force_internal(self):

    with mock.patch('swift.common.utils.FORCE_INTERNAL', new=True):
        self.assertEqual(utils.Timestamp(0).internal, '0000000000.00000_0000000000000000')
        self.assertEqual(utils.Timestamp(1402437380.58186).internal, '1402437380.58186_0000000000000000')
        self.assertEqual(utils.Timestamp(1402437380.581859).internal, '1402437380.58186_0000000000000000')
        self.assertEqual(utils.Timestamp(0, offset=1).internal, '0000000000.00000_0000000000000001')
        self.assertEqual(utils.Timestamp(1402437380.58186, offset=16).internal, '1402437380.58186_0000000000000010')
        self.assertEqual(utils.Timestamp(1402437380.581859, offset=16).internal, '1402437380.58186_0000000000000010')
