Explicit auth tests

.travis.yml

@@ -3,10 +3,10 @@ sudo: false
 language: python
 
 env:
-  - PYTHON=2.7 PANDAS=0.19.2 COVERAGE='false' LINT='true' PYENV_VERSION=2.7.14
-  - PYTHON=3.5 PANDAS=0.18.1 COVERAGE='true' LINT='false' PYENV_VERSION=3.5.4
-  - PYTHON=3.6 PANDAS=0.20.1 COVERAGE='false' LINT='false' PYENV_VERSION=3.6.1
-  - PYTHON=3.6 PANDAS=MASTER COVERAGE='false' LINT='true' PYENV_VERSION=3.6.1
+  - PYTHON=2.7 PANDAS=0.19.2 COVERAGE='false' LINT='true' PYENV_VERSION=2.7.14 AUTH='s_path'
+  - PYTHON=3.5 PANDAS=0.18.1 COVERAGE='true' LINT='false' PYENV_VERSION=3.5.4 AUTH='s_path'
+  - PYTHON=3.6 PANDAS=0.20.1 COVERAGE='false' LINT='false' PYENV_VERSION=3.6.1 AUTH='s_cred'
+  - PYTHON=3.6 PANDAS=MASTER COVERAGE='false' LINT='true' PYENV_VERSION=3.6.1 AUTH='s_cred'
 
 before_install:
   - echo "before_install"

nox.py

@@ -7,7 +7,6 @@
 
 import nox
 
-
 PANDAS_PRE_WHEELS = (
     'https://7933911d6844c6c53a7d-47bd50c35cd79bd838daf386af554a83'
     '.ssl.cf2.rackcdn.com')
@@ -21,6 +20,12 @@ def default(session):
         'pytest',
         os.path.join('.', 'tests', 'unit'),
         os.path.join('.', 'tests', 'system.py'),
+        os.path.join('.', 'tests', 'unit'),
+        "-m 'not local_auth and not {}'".format(
+            's_cred_auth'
+            if os.environ['AUTH'] == 's_path' else
+            's_path_auth'
+        ),
         '--quiet',
         '--cov=pandas_gbq',
         '--cov=tests.unit',
@@ -37,6 +42,11 @@ def unit(session):
     session.run(
         'pytest',
         os.path.join('.', 'tests', 'unit'),
+        "-m 'not local_auth and not {}'".format(
+            's_cred_auth'
+            if os.environ['AUTH'] == 's_path' else
+            's_path_auth'
+        ),
         '--quiet',
         '--cov=pandas_gbq',
         '--cov=tests.unit',

tests/system.py

@@ -23,11 +23,6 @@
 TABLE_ID = 'new_test'
 
 
-def _skip_local_auth_if_in_travis_env():
-    if _in_travis_environment():
-        pytest.skip("Cannot run local auth in travis environment")
-
-
 def _skip_if_no_private_key_path():
     if not _get_private_key_path():
         pytest.skip("Cannot run integration tests without a "
@@ -172,6 +167,26 @@ def test_generate_bq_schema_deprecated():
         gbq.generate_bq_schema(df)
 
 
+@pytest.fixture(params=[
+    pytest.param('local', marks=pytest.mark.local_auth),
+    pytest.param('service_path', marks=pytest.mark.s_path_auth),
+    pytest.param('service_creds', marks=pytest.mark.s_cred_auth),
+])
+def auth_type(request):
+
+    auth = request.param
+
+    if auth == 'local':
+        pass
+    elif auth == 'service_path':
+        _skip_if_no_private_key_path()
+    elif auth == 'service_creds':
+        _skip_if_no_private_key_contents()
+    else:
+        raise ValueError
+    return auth
+
+
 @pytest.fixture()
 def credentials():
     _skip_if_no_private_key_contents()
@@ -205,6 +220,7 @@ def test_should_be_able_to_get_results_from_query(self, gbq_connector):
         assert pages is not None
 
 
+@pytest.mark.local_auth
 class TestAuth(object):
 
     @pytest.fixture(autouse=True)
@@ -236,15 +252,13 @@ def test_get_application_default_credentials_returns_credentials(self):
         assert default_project is not None
 
     def test_get_user_account_credentials_bad_file_returns_credentials(self):
-        _skip_local_auth_if_in_travis_env()
 
         from google.auth.credentials import Credentials
         with mock.patch('__main__.open', side_effect=IOError()):
             credentials = self.sut.get_user_account_credentials()
         assert isinstance(credentials, Credentials)
 
     def test_get_user_account_credentials_returns_credentials(self):
-        _skip_local_auth_if_in_travis_env()
 
         from google.auth.credentials import Credentials
         credentials = self.sut.get_user_account_credentials()