def test_append_policy(self):
ctx = Context()
policy = regarding('/foo', set_value(5))
ctx.append(policy)
policy = ctx.finalize()
result = run_policy(policy)
self.assertEqual(result['foo'], 5)
def test_append_function(self):
ctx = Context()
value = unit(5)
def with_value(value):
return regarding(
'/foo',
set_value(value)
)
ctx.append(with_value, value)
policy = ctx.finalize()
result = run_policy(policy)
self.assertEqual(result['foo'], 5)
def test_subctx_noop_policy(self):
ctx = Context()
foo_ctx_value = ctx.subctx(
lambda policy_rules: regarding('/foo', *policy_rules)
)
def with_foo(foo_value):
return regarding('/bar', set_value(foo_value))
ctx.append(with_foo, foo_ctx_value)
# foo is only used as a value - never being applied policy
# rules itself.
# ctx therefore should only have 1 policy, the `with_foo`
# function above that just sets {foo: *, bar: foo}
items, error_handler = ctx.get_finalized_items()
self.assertEqual(len(items), 1)
result = run_policy(ctx.finalize(), {"foo": "zebra"})
self.assertEqual(result['bar'], "zebra")