How do I concisely implement multiple similar unit tests in the Python unittest framework?

Question

I\'m implementing unit tests for a family of functions that all share a number of invariants. For example, calling the function with two matrices produce a matrix of known s

Answer 1

The above metaclass code has trouble with nose because nose's wantMethod in its selector.py is looking at a given test method's __name__, not the attribute dict key.

To use a metaclass defined test method with nose, the method name and dictionary key must be the same, and prefixed to be detected by nose (ie with 'test_').

# test class that uses a metaclass
class TCType(type):
    def __new__(cls, name, bases, dct):
        def generate_test_method():
            def test_method(self):
                pass
            return test_method

        dct['test_method'] = generate_test_method()
        return type.__new__(cls, name, bases, dct)

class TestMetaclassed(object):
    __metaclass__ = TCType

    def test_one(self):
        pass
    def test_two(self):
        pass