def test_should_raise_exception_if_exception_argument_is_not_exception(
self):
# when
with self.assertRaises(ValueError) as ctx:
MainThreadActionResult(exception=list())
# then
self.assertEqual('Argument `exception` must be an exception.',
str(ctx.exception))
def test_should_raise_exception_if_both_arguments_provided(self):
# when
with self.assertRaises(ValueError) as ctx:
MainThreadActionResult(result=list(), exception=RuntimeError())
# then
self.assertEqual(
'Either `result` or `exception` argument must be provided.',
str(ctx.exception))
def test_should_return_result_if_not_exception(self):
# given
action_result = MainThreadActionResult(result='success')
# when
result = action_result.result
# then
self.assertEqual('success', result)
def test_should_reraise_exception(self):
# given
action_result = MainThreadActionResult(
exception=Exception('action error'))
# then
with self.assertRaises(Exception) as ctx:
_result = action_result.result
self.assertEqual('action error', str(ctx.exception))
def test_should_return_true_if_exception(self):
# given
action_result = MainThreadActionResult(exception=RuntimeError())
# then
self.assertTrue(action_result.is_exception)
def test_should_return_false_if_not_exception(self):
# given
action_result = MainThreadActionResult(result=list())
# then
self.assertFalse(action_result.is_exception)