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fix: save empty IAM policy bindings #155

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merged 2 commits into from Mar 23, 2021
Merged

fix: save empty IAM policy bindings #155

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762e443
fix: sae empty IAM bindings
busunkim96 Mar 22, 2021
a6a0c9c
chore: remove empty line
busunkim96 Mar 22, 2021
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5 changes: 4 additions & 1 deletion google/api_core/iam.py
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Expand Up @@ -136,7 +136,10 @@ def __getitem__(self, key):
for b in self._bindings:
if b["role"] == key:
return b["members"]
return set()
# binding does not yet exist, create one
new_binding = {"role": key, "members": set()}
self._bindings.append(new_binding)
return new_binding["members"]

def __setitem__(self, key, value):
self.__check_version__()
Expand Down
18 changes: 13 additions & 5 deletions tests/unit/test_iam.py
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Expand Up @@ -32,11 +32,11 @@ def test_ctor_defaults(self):
policy = self._make_one()
assert policy.etag is None
assert policy.version is None
assert len(policy) == 0
assert dict(policy) == {}
Comment on lines +35 to +36
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Accessing policy.owners, policy.editors results in __getitem__ being called, which adds empty entries to the dictionary. I moved these empty dict asserts up as a result.

An alternative is to keep them in their previous location and check that the three roles with empty bindings were added

assert policy.owners == empty
assert policy.editors == empty
assert policy.viewers == empty
assert len(policy) == 0
assert dict(policy) == {}

def test_ctor_explicit(self):
VERSION = 1
Expand All @@ -45,16 +45,24 @@ def test_ctor_explicit(self):
policy = self._make_one(ETAG, VERSION)
assert policy.etag == ETAG
assert policy.version == VERSION
assert len(policy) == 0
assert dict(policy) == {}
assert policy.owners == empty
assert policy.editors == empty
assert policy.viewers == empty
assert len(policy) == 0
assert dict(policy) == {}

def test___getitem___miss(self):
policy = self._make_one()
assert policy["nonesuch"] == set()

def test__getitem___and_set(self):
from google.api_core.iam import OWNER_ROLE
policy = self._make_one()

# get the policy using the getter and then modify it
policy[OWNER_ROLE].add("user:phred@example.com")
assert dict(policy) == {OWNER_ROLE: {"user:phred@example.com"}}

def test___getitem___version3(self):
policy = self._make_one("DEADBEEF", 3)
with pytest.raises(InvalidOperationException, match=_DICT_ACCESS_MSG):
Expand Down Expand Up @@ -293,10 +301,10 @@ def test_from_api_repr_only_etag(self):
policy = klass.from_api_repr(RESOURCE)
assert policy.etag == "ACAB"
assert policy.version is None
assert dict(policy) == {}
assert policy.owners == empty
assert policy.editors == empty
assert policy.viewers == empty
assert dict(policy) == {}

def test_from_api_repr_complete(self):
from google.api_core.iam import OWNER_ROLE, EDITOR_ROLE, VIEWER_ROLE
Expand Down