def test_given_value_is_exact_size_then_validation_passes(self):
validator = validators.Length(size=1)
validator("a")
def test_given_value_is_different_from_size_0_then_raises_error(self):
validator = validators.Length(size=0)
self.assertRaisesRegexp(ValidationError, "length must be exactly 0",
validator, "a")
def test_given_value_is_longer_than_maximum_0_then_raises_error(self):
validator = validators.Length(maximum=0)
self.assertRaisesRegexp(ValidationError, "maximum length is 0",
validator, "a")
def test_given_value_is_longer_than_size_then_raises_error(self):
validator = validators.Length(size=3)
self.assertRaisesRegexp(ValidationError, "length must be exactly 3",
validator, "ab")
def test_given_value_is_shorter_than_maximum_then_validation_passes(self):
validator = validators.Length(maximum=2)
validator("a")
def test_given_value_is_equal_to_maximum_then_validation_passes(self):
validator = validators.Length(maximum=1)
validator("a")
def test_given_value_is_longer_than_minimum_then_validation_passes(self):
validator = validators.Length(minimum=1)
validator("ab")
def test_given_value_is_shorter_than_minimum_then_raises_error(self):
validator = validators.Length(minimum=1)
self.assertRaisesRegexp(ValidationError, "minimum length is 1",
validator, "")
def test_given_value_is_none_then_validation_passes(self):
validator = validators.Length(minimum=1)
validator(None)