Allow applying @responses.activate to a class

Right now I have to apply the decorator to every method I want to mock responses in; I’d prefer to apply the decorator only to the TestCase declaration as my TestCase does http in every test method. This would keep requests consistent with the mock.patch behaviour.

E.g.:

@responses.activate
class CommandHandlerTestCase(unittest.TestCase):

    def test_function_1(self):
        responses.add(...)

    def test_function_2(self):
        responses.add(...)

    def test_function_3(self):
        responses.add(...)

[asfaltboy]

Just wanted to share how I solved this, using a mixin class, that uses TestCase setUp and tearDown to call the start, stop and reset methods of responses, and adds an (optional) default response. The one I use and maintain is here: https://gist.github.com/asfaltboy/bebd2c6943c34b0b27a7e3060448049b

Here’s the “gist” of it (no pun intended):

class ResponsesMixin(object):
    def setUp(self):
        assert responses, 'responses package required to use ResponsesMixin'
        responses.start()
        super(ResponsesMixin, self).setUp()

    def tearDown(self):
        super(ResponsesMixin, self).tearDown()
        responses.stop()
        responses.reset()

Then use in a TestCase:

class TestReportClient(ResponsesMixin, unittest.TestCase):
    def test_function_1(self):
        responses.add(...)

@dcramer let me know if you would like a PR of this, i.e with tests and docs

Update: Updated to support versions > 0.5.1

[bblanchon]

Even if this mixing doesn’t end up in the library, it should at least be in the documentation.