def test_modulo_validate(self):
r = constraints.Modulo(step=2, offset=1, description='a modulo')
r.validate(1)
r.validate(3)
r.validate(5)
r.validate(777777)
r = constraints.Modulo(step=111, offset=0, description='a modulo')
r.validate(111)
r.validate(222)
r.validate(444)
r.validate(1110)
r = constraints.Modulo(step=111, offset=11, description='a modulo')
r.validate(122)
r.validate(233)
r.validate(1121)
r = constraints.Modulo(step=-2, offset=-1, description='a modulo')
r.validate(-1)
r.validate(-3)
r.validate(-5)
r.validate(-777777)
r = constraints.Modulo(step=-2, offset=0, description='a modulo')
r.validate(-2)
r.validate(-4)
r.validate(-8888888)
def test_modulo_validate_fail(self):
r = constraints.Modulo(step=2, offset=1)
err = self.assertRaises(ValueError, r.validate, 4)
self.assertIn('4 is not a multiple of 2 with an offset of 1',
six.text_type(err))
self.assertRaises(ValueError, r.validate, 0)
self.assertRaises(ValueError, r.validate, 2)
self.assertRaises(ValueError, r.validate, 888888)
r = constraints.Modulo(step=2, offset=0)
self.assertRaises(ValueError, r.validate, 1)
self.assertRaises(ValueError, r.validate, 3)
self.assertRaises(ValueError, r.validate, 5)
self.assertRaises(ValueError, r.validate, 777777)
err = self.assertRaises(exception.InvalidSchemaError,
constraints.Modulo,
step=111,
offset=111)
self.assertIn('offset must be smaller (by absolute value) than step',
six.text_type(err))
err = self.assertRaises(exception.InvalidSchemaError,
constraints.Modulo,
step=111,
offset=112)
self.assertIn('offset must be smaller (by absolute value) than step',
six.text_type(err))
err = self.assertRaises(exception.InvalidSchemaError,
constraints.Modulo,
step=0,
offset=1)
self.assertIn('step cannot be 0', six.text_type(err))
err = self.assertRaises(exception.InvalidSchemaError,
constraints.Modulo,
step=-2,
offset=1)
self.assertIn('step and offset must be both positive or both negative',
six.text_type(err))
err = self.assertRaises(exception.InvalidSchemaError,
constraints.Modulo,
step=2,
offset=-1)
self.assertIn('step and offset must be both positive or both negative',
six.text_type(err))
def _constraint_from_def(cls, constraint):
desc = constraint.get(DESCRIPTION)
if MODULO in constraint:
cdef = constraint.get(MODULO)
cls._check_dict(cdef, MODULO_KEYS, 'modulo constraint')
return constr.Modulo(parameters.Schema.get_num(STEP, cdef),
parameters.Schema.get_num(OFFSET, cdef), desc)
else:
return super(HOTParamSchema20170224,
cls)._constraint_from_def(constraint)
def test_modulo_schema(self):
d = {'modulo': {'step': 2, 'offset': 1}, 'description': 'a modulo'}
r = constraints.Modulo(2, 1, description='a modulo')
self.assertEqual(d, dict(r))
def test_modulo_invalid_type(self):
schema = constraints.Schema('String',
constraints=[constraints.Modulo(2, 1)])
err = self.assertRaises(exception.InvalidSchemaError, schema.validate)
self.assertIn('Modulo constraint invalid for String',
six.text_type(err))