'Run before each test.'

def setUp(self):

    super(ShellTest, self).setUp()
    for var in self.FAKE_ENV:
        self.useFixture(fixtures.EnvironmentVariable(var, self.FAKE_ENV[var]))
    self.shell = self.useFixture(ShellFixture()).shell
    self.useFixture(fixtures.MonkeyPatch('novaclient.client.Client', fakes.FakeClient))
