def test_environment_provides():
oe1 = Environment(a = { 'b': 1 })
oe2 = Environment(a = { 'b': { 'c': List(Integer)([1,2,3]) } } )
oe = Environment(oe1, oe2)
for address in ['a.b', 'a.b.c', 'a.b.c[0]']:
assert oe.provides(ref(address))
for address in ['a', 'b', 'b.c', 'a.c', 'a.b.c.d', 'a.b.c[2].d']:
assert not oe.provides(ref(address))
class Nested(Struct):
value = String
class Composite(Struct):
first = String
checks = Map(Integer, Nested)
ce = Environment(composite = Composite())
assert not ce.provides(ref('random'))
assert ce.provides(ref('composite'))
assert ce.provides(ref('composite.first'))
assert not ce.provides(ref('composite.first.poop'))
assert ce.provides(ref('composite.checks'))
assert ce.provides(ref('composite.checks[0]'))
assert ce.provides(ref('composite.checks[0].value'))
assert not ce.provides(ref('composite.checks[0].nonvalue'))
assert not ce.provides(ref('composite.checks[0][nonvalue]'))
ce = Environment({'composite': {'unioned': 1}}, composite = Composite())
assert ce.provides(ref('composite'))
assert ce.provides(ref('composite.first'))
assert ce.provides(ref('composite.unioned'))
assert not ce.provides(ref('composite.unioned.anythingelse'))
