Before set_up() returns False it needs to call tear_down()
Before set_up() returns False it needs to call tear_down()

This is necessary to call the stop() functions of the patchers.

Because if setUp() of a test case decides to skip, tearDown() is
apparently not called.

kaio/ibus-table,mike-fabian/ibus-table,kaio/ibus-table,mike-fabian/ibus-table