def test_assert_almost_equals_uses_failure_exception(self):
failer = lambda: assert_almost_equals(2, 4, max_delta=0, failure_exception=TypeError)
assert_raises(TypeError, failer)
def test_can_specify_custom_message(self):
failer = lambda: assert_almost_equals(2, 4, max_delta=0, message='fnord')
failure = assert_raises(AssertionError, failer)
self.assertEqual('fnord', exception_message(failure))
def test_assert_almost_equals_uses_sensible_error_message(self):
failer = lambda: assert_almost_equals(2, 4, max_delta=1)
failure = assert_raises(AssertionError, failer)
self.assertEqual('2 != 4 with maximal difference of 1', exception_message(failure))
def test_assert_almost_equals_accepts_max_delta(self):
assert_almost_equals(5, 5, 0)
assert_almost_equals(6, 5, max_delta=2)
assert_almost_equals(5, 5.01, max_delta=0.1)
assert_raises(AssertionError, lambda: assert_almost_equals(5, 5.1, max_delta=0))
def test_assert_almost_equals_uses_failure_exception(self):
failer = lambda: assert_almost_equals(
2, 4, max_delta=0, failure_exception=TypeError)
assert_raises(TypeError, failer)
def test_assert_almost_equals_uses_sensible_error_message(self):
failer = lambda: assert_almost_equals(2, 4, max_delta=1)
failure = assert_raises(AssertionError, failer)
self.assertEqual('2 != 4 with maximal difference of 1',
exception_message(failure))
def test_can_specify_custom_message(self):
failer = lambda: assert_almost_equals(
2, 4, max_delta=0, message='fnord')
failure = assert_raises(AssertionError, failer)
self.assertEqual('fnord', exception_message(failure))
def test_assert_almost_equals_accepts_max_delta(self):
assert_almost_equals(5, 5, 0)
assert_almost_equals(6, 5, max_delta=2)
assert_almost_equals(5, 5.01, max_delta=0.1)
assert_raises(AssertionError,
lambda: assert_almost_equals(5, 5.1, max_delta=0))