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# Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import datetime
import pytest
from google.auth import _credentials_async as credentials
from google.auth import _helpers
class CredentialsImpl(credentials.Credentials):
def refresh(self, request):
self.token = request
def with_quota_project(self, quota_project_id):
raise NotImplementedError()
def test_credentials_constructor():
credentials = CredentialsImpl()
assert not credentials.token
assert not credentials.expiry
assert not credentials.expired
assert not credentials.valid
def test_expired_and_valid():
credentials = CredentialsImpl()
credentials.token = "token"
assert credentials.valid
assert not credentials.expired
# Set the expiration to one second more than now plus the clock skew
# accomodation. These credentials should be valid.
credentials.expiry = (
datetime.datetime.utcnow()
+ _helpers.REFRESH_THRESHOLD
+ datetime.timedelta(seconds=1)
)
assert credentials.valid
assert not credentials.expired
# Set the credentials expiration to now. Because of the clock skew
# accomodation, these credentials should report as expired.
credentials.expiry = datetime.datetime.utcnow()
assert not credentials.valid
assert credentials.expired
@pytest.mark.asyncio
async def test_before_request():
credentials = CredentialsImpl()
request = "token"
headers = {}
# First call should call refresh, setting the token.
await credentials.before_request(request, "http://example.com", "GET", headers)
assert credentials.valid
assert credentials.token == "token"
assert headers["authorization"] == "Bearer token"
request = "token2"
headers = {}
# Second call shouldn't call refresh.
credentials.before_request(request, "http://example.com", "GET", headers)
assert credentials.valid
assert credentials.token == "token"
def test_anonymous_credentials_ctor():
anon = credentials.AnonymousCredentials()
assert anon.token is None
assert anon.expiry is None
assert not anon.expired
assert anon.valid
def test_anonymous_credentials_refresh():
anon = credentials.AnonymousCredentials()
request = object()
with pytest.raises(ValueError):
anon.refresh(request)
def test_anonymous_credentials_apply_default():
anon = credentials.AnonymousCredentials()
headers = {}
anon.apply(headers)
assert headers == {}
with pytest.raises(ValueError):
anon.apply(headers, token="TOKEN")
def test_anonymous_credentials_before_request():
anon = credentials.AnonymousCredentials()
request = object()
method = "GET"
url = "https://example.com/api/endpoint"
headers = {}
anon.before_request(request, method, url, headers)
assert headers == {}
class ReadOnlyScopedCredentialsImpl(credentials.ReadOnlyScoped, CredentialsImpl):
@property
def requires_scopes(self):
return super(ReadOnlyScopedCredentialsImpl, self).requires_scopes
def test_readonly_scoped_credentials_constructor():
credentials = ReadOnlyScopedCredentialsImpl()
assert credentials._scopes is None
def test_readonly_scoped_credentials_scopes():
credentials = ReadOnlyScopedCredentialsImpl()
credentials._scopes = ["one", "two"]
assert credentials.scopes == ["one", "two"]
assert credentials.has_scopes(["one"])
assert credentials.has_scopes(["two"])
assert credentials.has_scopes(["one", "two"])
assert not credentials.has_scopes(["three"])
def test_readonly_scoped_credentials_requires_scopes():
credentials = ReadOnlyScopedCredentialsImpl()
assert not credentials.requires_scopes
class RequiresScopedCredentialsImpl(credentials.Scoped, CredentialsImpl):
def __init__(self, scopes=None):
super(RequiresScopedCredentialsImpl, self).__init__()
self._scopes = scopes
@property
def requires_scopes(self):
return not self.scopes
def with_scopes(self, scopes):
return RequiresScopedCredentialsImpl(scopes=scopes)
def test_create_scoped_if_required_scoped():
unscoped_credentials = RequiresScopedCredentialsImpl()
scoped_credentials = credentials.with_scopes_if_required(
unscoped_credentials, ["one", "two"]
)
assert scoped_credentials is not unscoped_credentials
assert not scoped_credentials.requires_scopes
assert scoped_credentials.has_scopes(["one", "two"])
def test_create_scoped_if_required_not_scopes():
unscoped_credentials = CredentialsImpl()
scoped_credentials = credentials.with_scopes_if_required(
unscoped_credentials, ["one", "two"]
)
assert scoped_credentials is unscoped_credentials
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