Unit test in Python, error in setup class

Question

I am writing a test suite as:

class MySuite(unnitest.Testcase):

@classmethod
def setUpclass(cls):
    try:
        ***some code which will throw exception***
    except Exception as e:
        print('Error Thrown')
@classmethod
def tearDownClass(cls):
    print('In teardown')
def test_demo(self):
    print('In test_demo')

The problem is, though error will be thrown in setup (because of 5/0), the test_demo will be executed, which I do not want to.

What could be the best approach to stop executing the test_demo whenever there is an error in setup method.

What happens if you remove the try-except in your setup, and just allow the exception to propagate? — DNA
– DNA, Commented Apr 1, 2015 at 8:22

Daniel Roseman · Accepted Answer · 2015-04-01 08:24:33Z

1

You're catching the error and just printing a message in response. Don't do that.

If you really want to print something, at least re-raise the exception afterwards. But better not to bother catching it at all: the traceback should be sufficient information.

(Also, the first parameter to a classmethod is usually called cls not self, as it is the class itself.)

answered Apr 1, 2015 at 8:24

Daniel Roseman

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