def test_no_output_when_disabled(self):
channel = Channel()
channel.disable()
self.assertFalse(channel.enabled())
channel("Hello World")
self.assertEqual("", sys.stdout.getvalue())
self.assertEqual("", sys.stderr.getvalue())
def test_output_when_enabled(self):
channel = Channel()
channel.enable()
self.assertTrue(channel.enabled())
channel("Hello World")
self.assertEqual("Hello World\n", sys.stdout.getvalue())
self.assertEqual("", sys.stderr.getvalue())
def test_disabled_by_default(self):
channel = Channel()
self.assertFalse(channel.enabled())
