Add main so these tests can be run standalone

Doug Greiman · Doug Greiman · commit 7b8c4de65a60 · 2017-06-26T15:17:07.000-07:00
diff --git a/scripts/gen_dockerfile_test.py b/scripts/gen_dockerfile_test.py
@@ -223,3 +223,7 @@ def mock_error(*args):
     with error_patch:
         with pytest.raises(AssertionError):
             gen_dockerfile.parse_args(argv)
+
+
+if __name__ == '__main__':
+    pytest.main([__file__])
diff --git a/scripts/local_cloudbuild_test.py b/scripts/local_cloudbuild_test.py
@@ -404,3 +404,7 @@ def test_parse_args_output_script(argv, expected):
 def test_parse_args_run_flag(argv, expected):
     args = local_cloudbuild.parse_args(argv)
     assert args.run == expected
+
+
+if __name__ == '__main__':
+    pytest.main([__file__])
diff --git a/scripts/validation_utils_test.py b/scripts/validation_utils_test.py
@@ -92,3 +92,7 @@ def test_validate_arg_dicts_valid(arg, expected):
 def test_validate_arg_dicts_invalid(arg):
     with pytest.raises(argparse.ArgumentTypeError):
         validation_utils.validate_arg_dict(arg)
+
+
+if __name__ == '__main__':
+    pytest.main([__file__])
