def testStringDefaultInterpolation(self):
c = Config(spec=Dict(a=String(default="letter a"),
aa=String(default="a {{a}}")))
c.load_data({})
c.resolve()
self.assertEqual(c.get("aa"), "a letter a")
def testCircularDependency(self):
c = Config(spec=Dict(a=String()))
c.load_data({"a": "a{{a}}a"})
with self.assertRaises(CircularDependency):
c.resolve()
