def testNestedproperty(self):
a, b = 5, 7
ab = a * b
tObj = TestObj1(a=3, b=TestObj2(a, b))
spec = Specification(f't.b.ab == {ab}')
self.assertTrue(spec.is_satisfied_by(tObj))
spec = ~Specification(f't.b.ab != {ab}')
self.assertTrue(spec.is_satisfied_by(tObj))
ispec = Specification('1 <= t.b.a <= 7')
self.assertTrue(ispec.is_satisfied_by(tObj))
cspec = spec & ispec
self.assertTrue(cspec.is_satisfied_by(tObj))
class TestIssue1(unittest.TestCase):
def setUp(self):
from decimal import Decimal # noqa
self.spec = Specification("x == Decimal('5.4')",
candidate_name='x')
def testIsSatisfied(self):
self.assertFalse(self.spec.is_satisfied_by(5))
def testSimpleSpec(self):
val = 5
tObj = TestObj1(b=val)
for op1, op2 in [(operator.eq, operator.ne),
(operator.lt, operator.ge),
(operator.gt, operator.le),
(operator.is_, operator.is_not)]:
spec1 = Specification(f't.b {op2sym[op1]} {val}')
spec2 = Specification(f't.b {op2sym[op2]} {val}')
self.assertEqual(spec1.is_satisfied_by(tObj), op1(tObj.b, val))
self.assertFalse(spec1.is_satisfied_by(tObj) and
spec2.is_satisfied_by(tObj))
spec1 = Specification(f't.b {op2sym[op1]} {-val}')
spec2 = Specification(f't.b {op2sym[op2]} {-val}')
self.assertEqual(spec1.is_satisfied_by(tObj), op1(tObj.b, -val))
self.assertFalse(spec1.is_satisfied_by(tObj) and
spec2.is_satisfied_by(tObj))
# compare instance of subclass
tObj = TestObj2(b=val)
spec = Specification(f't.b == {val}')
self.assertTrue(spec.is_satisfied_by(tObj))
spec = Specification(f't.b < {val}')
self.assertFalse(spec.is_satisfied_by(tObj))