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from marathon.models.app import MarathonConstraint
import unittest
class MarathonConstraintTests(unittest.TestCase):
def test_repr_with_value(self):
constraint = MarathonConstraint('a_field', 'OPERATOR', 'a_value')
representation = repr(constraint)
self.assertEqual(representation,
"MarathonConstraint::a_field:OPERATOR:a_value")
def test_repr_without_value(self):
constraint = MarathonConstraint('a_field', 'OPERATOR')
representation = repr(constraint)
self.assertEqual(representation,
"MarathonConstraint::a_field:OPERATOR")
def test_json_repr_with_value(self):
constraint = MarathonConstraint('a_field', 'OPERATOR', 'a_value')
json_repr = constraint.json_repr()
self.assertEqual(json_repr, ['a_field', 'OPERATOR', 'a_value'])
def test_json_repr_without_value(self):
constraint = MarathonConstraint('a_field', 'OPERATOR')
json_repr = constraint.json_repr()
self.assertEqual(json_repr, ['a_field', 'OPERATOR'])
def test_from_json_with_value(self):
constraint = MarathonConstraint.from_json(['a_field', 'OPERATOR', 'a_value'])
self.assertEqual(constraint,
MarathonConstraint('a_field', 'OPERATOR', 'a_value'))
def test_from_json_without_value(self):
constraint = MarathonConstraint.from_json(['a_field', 'OPERATOR'])
self.assertEqual(constraint, MarathonConstraint('a_field', 'OPERATOR'))
def test_from_string_with_value(self):
constraint = MarathonConstraint.from_string('a_field:OPERATOR:a_value')
self.assertEqual(constraint,
MarathonConstraint('a_field', 'OPERATOR', 'a_value'))
def test_from_string_without_value(self):
constraint = MarathonConstraint.from_string('a_field:OPERATOR')
self.assertEqual(constraint, MarathonConstraint('a_field', 'OPERATOR'))
def test_from_string_raises_an_error_for_invalid_format(self):
with self.assertRaises(ValueError):
MarathonConstraint.from_string('a_field:OPERATOR:a_value:')
with self.assertRaises(ValueError):
MarathonConstraint.from_string('a_field')
with self.assertRaises(ValueError):
MarathonConstraint.from_string('a_field:OPERATOR:a_value:something')
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