def test_and_is_lazy(self):
with patch(
'pycan._assert_authorization_parameters') as assert_parameters:
assert_parameters.return_value = True
test_functions = [Mock(), Mock(), Mock()]
combined_function = pycan.and_(*test_functions)
test_functions[0].return_value = False
combined_function(1, 2, 1)
test_functions[0].assert_called_once_with(1, 2, 1)
self.assertEquals(test_functions[1].call_count, 0)
self.assertEquals(test_functions[2].call_count, 0)
test_functions[0].return_value = True
test_functions[1].return_value = False
combined_function(1, 1, 2)
self.assertEquals(test_functions[0].call_count, 2)
test_functions[1].assert_called_once_with(1, 1, 2)
self.assertEquals(test_functions[2].call_count, 0)
test_functions[0].return_value = True
test_functions[1].return_value = True
test_functions[2].return_value = True
combined_function(2, 2, 2)
self.assertEquals(test_functions[0].call_count, 3)
self.assertEquals(test_functions[1].call_count, 2)
test_functions[2].assert_called_once_with(2, 2, 2)
def test_combine_with_and(self):
test_function = pycan.and_(lambda u, c, r: u == c,
lambda u, c, r: u == r,
lambda u, c, r: c == r)
self.assertTrue(test_function(1, 1, 1))
self.assertFalse(test_function(1, 1, 0))
self.assertFalse(test_function(1, 0, 1))
self.assertFalse(test_function(0, 1, 1))
self.assertFalse(test_function(1, 2, 3))