Index: tests/test.py
===================================================================
--- tests/test.py	(revision 0d314345431886e5f67fcab6c997eb6c0b730794)
+++ tests/test.py	(revision 4c0acb0b6af122e6341b3f48d576cce95e22fdd2)
@@ -114,5 +114,6 @@
 	parser.add_argument('--install', help='Run all tests based on installed binaries or tree binaries', type=comma_separated(yes_no), default='no')
 	parser.add_argument('--continue', help='When multiple specifications are passed (debug/install/arch), sets whether or not to continue if the last specification failed', type=yes_no, default='yes', dest='continue_')
-	parser.add_argument('--no-invariant', help='Tell the compiler to not check invariant while running.', action='store_false')
+	parser.add_argument('--invariant', help='Tell the compiler to check invariants.', action='store_true')
+	parser.add_argument('--no-invariant', help='Tell the compiler not to check invariant while running.', action='store_false')
 	parser.add_argument('--timeout', help='Maximum duration in seconds after a single test is considered to have timed out', type=int, default=180)
 	parser.add_argument('--global-timeout', help='Maximum cumulative duration in seconds after the ALL tests are considered to have timed out', type=int, default=7200)