--debug::
This may help the person who is developing a new test.
It causes the command defined with test_debug to run.
+ The "trash" directory (used to store all temporary data
+ during testing) is not deleted even if there are no
+ failed tests so that you can inspect its contents after
+ the test finished.
--immediate::
This causes the test to immediately exit upon the first
Skipping tests
--------------
-If you need to skip tests you should do so be using the three-arg form
+If you need to skip tests you should do so by using the three-arg form
of the test_* functions (see the "Test harness library" section
below), e.g.: