Wait and See
A test that runs some set up code and then needs to 'wait' a specific amount of time before it can 'see' if the code under test functioned as expected. A testMethod that uses Thread.sleep() or equivalent is most certainly a "Wait and See" test.
Typically, you may see this if the test is testing code which generates an event external to the system such as an email, an http request or writes a file to disk.
Such a test may also be a Local Hero since it will FAIL when run on a slower box or an overloaded CI server.
The Wait and See anti-pattern is not to be confused with The Sleeper.
