if condition in setUp() ignore test

Question

in unittest python library, exists the functions setUp and tearDown for set variables and other things pre and post tests.

how I can run or ignore a test with a condition in setUp ?

Answer 1

You can call if cond: self.skipTest('reason') in setUp().

Answer 2

Instead of checking in setUp, use the skipIf decorator.

@unittest.skipIf(not os.path.exists("somefile.txt"),
                 "somefile.txt is missing")
def test_thing_requiring_somefile(self):
    ...

skipIf can also be used on the class, so you can skip all contained tests if the condition does not hold.

@unittest.skipIf(not os.path.exists("somefile.txt"),
                 "somefile.txt is missing")
class TestStuff(unittest.TestCase):

    def setUp(self):
        ...

    def test_scenario_one(self):
        ...

    def test_scenario_two(self):
        ...