zheng yin ba912a10b0 Add test_valid_api_version in the test_constraints
There is a valid_api_version function in the constraints,but it has no
tests in the test_constraints. Therefore, I add test_valid_api_version.

Change-Id: Ic8dbe9c00f762513ec9a4ffc0b77e4e5d3e5d47b
2016-09-06 11:55:41 +08:00
..
2016-08-29 14:32:10 +08:00