1 files changed, 65 insertions, 0 deletions
diff --git a/system_tests/system_tests_sync/test_service_account.py b/system_tests/system_tests_sync/test_service_account.py
new file mode 100644
index 0000000..498b75b
--- /dev/null
+++ b/system_tests/system_tests_sync/test_service_account.py
@@ -0,0 +1,65 @@
+# Copyright 2016 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 pytest
+
+from google.auth import _helpers
+from google.auth import exceptions
+from google.auth import iam
+from google.oauth2 import service_account
+
+
+@pytest.fixture
+def credentials(service_account_file):
+    yield service_account.Credentials.from_service_account_file(service_account_file)
+
+
+def test_refresh_no_scopes(http_request, credentials):
+    with pytest.raises(exceptions.RefreshError):
+        credentials.refresh(http_request)
+
+
+def test_refresh_success(http_request, credentials, token_info):
+    credentials = credentials.with_scopes(["email", "profile"])
+
+    credentials.refresh(http_request)
+
+    assert credentials.token
+
+    info = token_info(credentials.token)
+
+    assert info["email"] == credentials.service_account_email
+    info_scopes = _helpers.string_to_scopes(info["scope"])
+    assert set(info_scopes) == set(
+        [
+            "https://www.googleapis.com/auth/userinfo.email",
+            "https://www.googleapis.com/auth/userinfo.profile",
+        ]
+    )
+
+def test_iam_signer(http_request, credentials):
+    credentials = credentials.with_scopes(
+        ["https://www.googleapis.com/auth/iam"]
+    )
+
+    # Verify iamcredentials signer.
+    signer = iam.Signer(
+        http_request,
+        credentials,
+        credentials.service_account_email
+    )
+    
+    signed_blob = signer.sign("message")
+
+    assert isinstance(signed_blob, bytes)