Migrate test runner to py.test

.coveragerc

@@ -1,6 +1,7 @@
 [report]
 omit =
     */samples/*
+    */conftest.py
     # Don't report coverage over platform-specific modules.
     oauth2client/contrib/_fcntl_opener.py
     oauth2client/contrib/_win32_opener.py

.gitignore

@@ -10,6 +10,7 @@ docs/_build
 
 # Test files
 .tox/
+.cache/
 
 # Django test database
 db.sqlite3

tests/__init__.py

@@ -1,22 +0,0 @@
-# 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.
-
-"""Test package set-up."""
-
-from oauth2client import _helpers
-
-__author__ = '[email protected] (Ali Afshar)'
-
-
-def setup_package():
-    """Run on testing package."""
-    _helpers.positional_parameters_enforcement = _helpers.POSITIONAL_EXCEPTION

tests/conftest.py

@@ -0,0 +1,31 @@
+# Copyright 2016 Google Inc. All rights reserved.
+#
+# 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.
+
+"""Py.test hooks."""
+
+from oauth2client import _helpers
+
+
+def pytest_addoption(parser):
+    """Adds the --gae-sdk option to py.test.
+
+    This is used to enable the GAE tests. This has to be in this conftest.py
+    due to the way py.test collects conftest files."""
+    parser.addoption('--gae-sdk')
+
+
+def pytest_configure(config):
+    """Py.test hook called before loading tests."""
+    # Default of POSITIONAL_WARNING is too verbose for testing
+    _helpers.positional_parameters_enforcement = _helpers.POSITIONAL_EXCEPTION

tests/contrib/appengine/conftest.py

@@ -0,0 +1,53 @@
+# Copyright 2016 Google Inc. All rights reserved.
+#
+# 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.
+
+"""App Engine py.test configuration."""
+
+import sys
+
+from six.moves import reload_module
+
+
+def set_up_gae_environment(sdk_path):
+    """Set up appengine SDK third-party imports.
+
+    The App Engine SDK does terrible things to the global interpreter state.
+    Because of this, this stuff can't be neatly undone. As such, it can't be
+    a fixture.
+    """
+    if 'google' in sys.modules:
+        # Some packages, such as protobuf, clobber the google
+        # namespace package. This prevents that.
+        reload_module(sys.modules['google'])
+
+    # This sets up google-provided libraries.
+    sys.path.insert(0, sdk_path)
+    import dev_appserver
+    dev_appserver.fix_sys_path()
+
+    # Fixes timezone and other os-level items.
+    import google.appengine.tools.os_compat  # noqa: unused import
+
+
+def pytest_configure(config):
+    """Configures the App Engine SDK imports on py.test startup."""
+    if config.getoption('gae_sdk') is not None:
+        set_up_gae_environment(config.getoption('gae_sdk'))
+
+
+def pytest_ignore_collect(path, config):
+    """Skip App Engine tests when --gae-sdk is not specified."""
+    return (
+        'contrib/appengine' in str(path) and
+        config.getoption('gae_sdk') is None)

tests/contrib/test__appengine_ndb.py → tests/contrib/appengine/test__appengine_ndb.py

@@ -24,7 +24,7 @@
 from oauth2client.contrib import appengine
 
 
-DATA_DIR = os.path.join(os.path.dirname(__file__), '..', 'data')
+DATA_DIR = os.path.join(os.path.dirname(__file__), '..', '..', 'data')
 
 
 def datafile(filename):

tests/contrib/test_appengine.py → tests/contrib/appengine/test_appengine.py

@@ -18,10 +18,6 @@
 import tempfile
 import time
 
-import dev_appserver
-
-dev_appserver.fix_sys_path()
-
 from google.appengine.api import apiproxy_stub
 from google.appengine.api import apiproxy_stub_map
 from google.appengine.api import app_identity
@@ -41,11 +37,11 @@
 from oauth2client import client
 from oauth2client import clientsecrets
 from oauth2client.contrib import appengine
-from .. import http_mock
+from ... import http_mock
 
 __author__ = '[email protected] (Joe Gregorio)'
 
-DATA_DIR = os.path.join(os.path.dirname(__file__), '..', 'data')
+DATA_DIR = os.path.join(os.path.dirname(__file__), '..', '..', 'data')
 DEFAULT_RESP = """\
 {
     "access_token": "foo_access_token",

tests/test_jwt.py

@@ -235,9 +235,13 @@ def setUp(self):
 class SignedJwtAssertionCredentialsTests(unittest2.TestCase):
 
     def setUp(self):
+        self.orig_signer = crypt.Signer
         self.format_ = 'p12'
         crypt.Signer = crypt.OpenSSLSigner
 
+    def tearDown(self):
+        crypt.Signer = self.orig_signer
+
     def _make_credentials(self):
         private_key = datafile('privatekey.' + self.format_)
         signer = crypt.Signer.from_string(private_key)
@@ -310,17 +314,25 @@ class PEMSignedJwtAssertionCredentialsOpenSSLTests(
         SignedJwtAssertionCredentialsTests):
 
     def setUp(self):
+        self.orig_signer = crypt.Signer
         self.format_ = 'pem'
         crypt.Signer = crypt.OpenSSLSigner
 
+    def tearDown(self):
+        crypt.Signer = self.orig_signer
+
 
 class PEMSignedJwtAssertionCredentialsPyCryptoTests(
         SignedJwtAssertionCredentialsTests):
 
     def setUp(self):
+        self.orig_signer = crypt.Signer
         self.format_ = 'pem'
         crypt.Signer = crypt.PyCryptoSigner
 
+    def tearDown(self):
+        crypt.Signer = self.orig_signer
+
 
 class TestHasOpenSSLFlag(unittest2.TestCase):
 

tests/test_service_account.py

@@ -45,6 +45,8 @@ def datafile(filename):
 class ServiceAccountCredentialsTests(unittest2.TestCase):
 
     def setUp(self):
+        self.orig_signer = crypt.Signer
+        self.orig_verifier = crypt.Verifier
         self.client_id = '123'
         self.service_account_email = '[email protected]'
         self.private_key_id = 'ABCDEF'
@@ -58,6 +60,10 @@ def setUp(self):
             client_id=self.client_id,
         )
 
+    def tearDown(self):
+        crypt.Signer = self.orig_signer
+        crypt.Verifier = self.orig_verifier
+
     def test__to_json_override(self):
         signer = object()
         creds = service_account.ServiceAccountCredentials(

tox.ini

@@ -7,7 +7,7 @@ basedeps = mock>=1.3.0
            cryptography>=1.0
            pyopenssl>=0.14
            webtest
-           nose
+           pytest
            flask
            unittest2
            sqlalchemy
@@ -18,60 +18,41 @@ deps = {[testenv]basedeps}
 setenv =
     pypy: with_gmp=no
     DJANGO_SETTINGS_MODULE=tests.contrib.django_util.settings
-commands = nosetests --ignore-files=test_appengine\.py --ignore-files=test__appengine_ndb\.py {posargs}
+commands = 
+    py.test {posargs}
 
 [coverbase]
 basepython = python2.7
 commands =
-    nosetests \
-      --with-coverage \
-      --cover-package=oauth2client \
-      --cover-package=tests \
-      --cover-erase \
-      --cover-tests \
-      --cover-branches \
-      --ignore-files=test_appengine\.py \
-      --ignore-files=test__appengine_ndb\.py
-    nosetests \
-      --with-coverage \
-      --cover-package=oauth2client.contrib.appengine \
-      --cover-package=oauth2client.contrib._appengine_ndb \
-      --cover-package=tests.contrib.test_appengine \
-      --cover-package=tests.contrib.test__appengine_ndb \
-      --with-gae \
-      --cover-tests \
-      --cover-branches \
-      --gae-application=tests/data \
-      --gae-lib-root={env:GAE_PYTHONPATH:google_appengine} \
-      --logging-level=INFO \
-      tests/contrib/test_appengine.py \
-      tests/contrib/test__appengine_ndb.py
+    py.test \
+      --cov=oauth2client \
+      --cov=tests
+    py.test \
+      --cov=oauth2client \
+      --cov=tests \
+      --cov-append \
+       --gae-sdk={env:GAE_PYTHONPATH} \
+      tests/contrib/appengine
 deps = {[testenv]deps}
     coverage
-    nosegae
+    pytest-cov
 
 [testenv:py33]
 basepython =
     python3.3
 commands =
-    nosetests \
-      --ignore-files=test_appengine\.py \
-      --ignore-files=test__appengine_ndb\.py \
-      --ignore-files=test_django_orm\.py \
-      --ignore-files=test_django_settings\.py \
-      --ignore-files=test_django_util\.py \
-      --exclude-dir=oauth2client/contrib/django_util \
-      --exclude-dir=tests/contrib/django_util \
+    py.test \
+      --ignore=oauth2client/contrib/django_util \
+      --ignore=tests/contrib/django_util \
       {posargs}
 deps = {[testenv]basedeps}
        keyring
-       nose-exclude
 
 [testenv:cover]
 basepython = {[coverbase]basepython}
 commands =
     {[coverbase]commands}
-    coverage report --show-missing --cover-min-percentage=100
+    coverage report --show-missing --fail-under=100
 deps =
     {[coverbase]deps}
 
@@ -100,15 +81,8 @@ commands = {toxinidir}/scripts/build_docs.sh
 [testenv:gae]
 basepython = python2.7
 deps = {[testenv]basedeps}
-       nosegae
 commands =
-    nosetests \
-      --with-gae \
-      --gae-lib-root={env:GAE_PYTHONPATH:google_appengine} \
-      --gae-application=tests/data \
-      --logging-level=INFO \
-      tests/contrib/test_appengine.py \
-      tests/contrib/test__appengine_ndb.py
+    py.test --gae-sdk={env:GAE_PYTHONPATH} tests/contrib/appengine
 
 [testenv:system-tests]
 basepython =
@@ -153,11 +127,8 @@ exclude = .tox,.git,./*.egg,build,
 application-import-names = oauth2client
 putty-ignore =
   # E402 module level import not at top of file
-  # These files have needed configurations defined before import
+  # This file has needed configurations defined before import
   docs/conf.py : E402
-  tests/contrib/test_appengine.py : E402
-  # Additionally, ignore E100 (imports in wrong order) for Django configuration
-  tests/contrib/test_django_orm.py : E402,I100
   # E501 line too long
   # Ignore lines over 80 chars that include "http:" or "https:"
   /http:/ : E501