def test_compose_one_failing(self):
attr_func_1 = attribute('a', equals(3, "is not 3"))
attr_func_2 = attribute('b', equals(2, "is not 2"))
f = compose(attr_func_1, attr_func_2)
result = f(Obj(a=3, b=3))
self.assertEqual(['is not 2'], result)
def test_compose_all_failing(self):
attr_func_1 = attribute('a', equals(3, "is not 3"))
attr_func_2 = attribute('b', equals(2, "is not 2"))
f = compose(attr_func_1, attr_func_2)
result = f(Obj(a=4, b=3))
self.assertEqual(set(['is not 2', 'is not 3']), set(result))
def test_key(self):
f = key('a', equals(3, "is not 3"))
result = f({'a':3})
self.assertEqual([], result)
def test_key_not_there(self):
f = key('b', equals(3, "is not 3"))
result = f({'a':3})
self.assertTrue('has no key' in result[0])
def test_nested_attribute_failing(self):
f = attribute('a.b', equals(3, "is not 3"))
obj = Obj(a=3)
result = f(obj)
self.assertTrue('AttributeError' in result[0])
def test_nested_attribute(self):
f = attribute('a.b', equals(3, "is not 3"))
obj = Obj(a=Obj(b=3))
result = f(obj)
self.assertEqual([], result)
def test_attribute(self):
f = attribute('a', equals(3, "is not 3"))
obj = Obj(a=3)
result = f(obj)
self.assertEqual([], result)
def test_equals_fail(self):
f = equals(3, "is not 3")
result = f(2)
self.assertEqual(['is not 3'], result)
def test_equals(self):
f = equals(3, "is not 3")
result = f(3)
self.assertEqual([], result)