Update base test case to use base from oslotest

We can get rid of our custom stdout/stderr handling by doing this. We
should push our 'attach-on-exception' code up to oslotest so we can get
rid of it locally.

Remove a direct mock of time.sleep. This is already handled in
the base test case. Also remove a time.sleep(40) - because of all of the
reasons.

Set the default for timeout to 3 seconds. Sometimes an error will cause
a requests-mock test to spin in an infinite loop. All of the unit tests
run in under a second and should stay that way.

Change-Id: I7f9ea357a85754a6d3f79955d3ffb2a68a0ff621

openstack/cloud/openstackcloud.py

@@ -276,6 +276,9 @@ class OpenStackCloud(_normalize.Normalizer):
                        that do not want to be overridden can be ommitted.
         """
 
+        if self.config._openstack_config:
+            config = self.config._openstack_config
+        else:
             # TODO(mordred) Replace this with from_session
             config = openstack.config.OpenStackConfig(
                 app_name=self.config._app_name,
@@ -322,9 +325,7 @@ class OpenStackCloud(_normalize.Normalizer):
                 session=self.session,
                 discovery_cache=self.config._discovery_cache)
 
-        # Use cloud='defaults' so that we overlay settings properly
         cloud_config = config.get_one(
-            cloud='defaults',
             session_constructor=session_constructor,
             **params)
         # Override the cloud name so that logging/location work right

openstack/config/loader.py

@@ -103,7 +103,8 @@ def _get_os_environ(envvar_prefix=None):
     environkeys = [k for k in os.environ.keys()
                    if (k.startswith('OS_') or k.startswith(envvar_prefix))
                    and not k.startswith('OS_TEST')  # infra CI var
-                   and not k.startswith('OS_STD')   # infra CI var
+                   and not k.startswith('OS_STD')   # oslotest var
+                   and not k.startswith('OS_LOG')   # oslotest var
                    ]
     for k in environkeys:
         newkey = k.split('_', 1)[-1].lower()

openstack/tests/base.py

@@ -14,19 +14,20 @@
 # under the License.
 
 import os
+import sys
 
 import fixtures
 import logging
 import munch
+from oslotest import base
 import pprint
 from six import StringIO
-import testtools
 import testtools.content
 
 _TRUE_VALUES = ('true', '1', 'yes')
 
 
-class TestCase(testtools.TestCase):
+class TestCase(base.BaseTestCase):
 
     """Test case base class for all tests."""
 
@@ -35,32 +36,25 @@ class TestCase(testtools.TestCase):
 
     def setUp(self):
         """Run before each test method to initialize test environment."""
+        # No openstacksdk unit tests should EVER run longer than a second.
+        # Set this to 3 by default just to give us some fudge.
+        # Do this before super setUp so that we intercept the default value
+        # in oslotest. TODO(mordred) Make the default timeout configurable
+        # in oslotest.
+        self.useFixture(
+            fixtures.EnvironmentVariable(
+                'OS_TEST_TIMEOUT', os.environ.get('OS_TEST_TIMEOUT', '3')))
 
         super(TestCase, self).setUp()
-        test_timeout = int(os.environ.get('OS_TEST_TIMEOUT', 0))
-        try:
-            test_timeout = int(test_timeout * self.TIMEOUT_SCALING_FACTOR)
-        except ValueError:
-            # If timeout value is invalid do not set a timeout.
-            test_timeout = 0
-        if test_timeout > 0:
-            self.useFixture(fixtures.Timeout(test_timeout, gentle=True))
-
-        self.useFixture(fixtures.NestedTempfile())
-        self.useFixture(fixtures.TempHomeDir())
-
-        if os.environ.get('OS_STDOUT_CAPTURE') in _TRUE_VALUES:
-            stdout = self.useFixture(fixtures.StringStream('stdout')).stream
-            self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))
-        if os.environ.get('OS_STDERR_CAPTURE') in _TRUE_VALUES:
-            stderr = self.useFixture(fixtures.StringStream('stderr')).stream
-            self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
 
+        if os.environ.get('OS_LOG_CAPTURE') in _TRUE_VALUES:
             self._log_stream = StringIO()
             if os.environ.get('OS_ALWAYS_LOG') in _TRUE_VALUES:
                 self.addCleanup(self.printLogs)
             else:
                 self.addOnException(self.attachLogs)
+        else:
+            self._log_stream = sys.stdout
 
         handler = logging.StreamHandler(self._log_stream)
         formatter = logging.Formatter('%(asctime)s %(name)-32s %(message)s')
@@ -76,6 +70,11 @@ class TestCase(testtools.TestCase):
         logger.addHandler(handler)
         logger.propagate = False
 
+    def _fake_logs(self):
+        # Override _fake_logs in oslotest until we can get our
+        # attach-on-exception logic added
+        pass
+
     def assertEqual(self, first, second, *args, **kwargs):
         '''Munch aware wrapper'''
         if isinstance(first, munch.Munch):

openstack/tests/functional/compute/v2/test_server.py

@@ -10,8 +10,6 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import time
-
 from openstack.compute.v2 import server
 from openstack.tests.functional import base
 from openstack.tests.functional.network.v2 import test_network
@@ -50,8 +48,6 @@ class TestServer(base.BaseFunctionalTest):
         self.assertIsNone(sot)
         # Need to wait for the stack to go away before network delete
         self.conn.compute.wait_for_delete(self.server)
-        # TODO(shade) sleeping in tests is bad mmkay?
-        time.sleep(40)
         test_network.delete_network(self.conn, self.network, self.subnet)
         super(TestServer, self).tearDown()
 

openstack/tests/functional/orchestration/v1/test_stack.py

@@ -10,7 +10,6 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import time
 import unittest
 
 from openstack import exceptions
@@ -68,8 +67,6 @@ class TestStack(base.BaseFunctionalTest):
                 self.stack, 'DELETE_COMPLETE')
         except exceptions.NotFoundException:
             pass
-        # TODO(shade) sleeping in tests is bad mmkay?
-        time.sleep(40)
         test_network.delete_network(self.conn, self.network, self.subnet)
         super(TestStack, self).tearDown()
 

openstack/tests/unit/cloud/test_create_server.py

@@ -484,9 +484,8 @@ class TestCreateServer(base.RequestsMockTestCase):
         self.assert_calls()
 
     @mock.patch.object(openstack.cloud.OpenStackCloud, 'add_ips_to_server')
-    @mock.patch('time.sleep')
     def test_create_server_no_addresses(
-            self, mock_sleep, mock_add_ips_to_server):
+            self, mock_add_ips_to_server):
         """
         Test that create_server with a wait throws an exception if the
         server doesn't have addresses.

openstack/tests/unit/test_resource.py

@@ -1824,7 +1824,7 @@ class TestWaitForStatus(base.TestCase):
 
         self.assertRaises(exceptions.ResourceTimeout,
                           resource.wait_for_status,
-                          "session", res, status, None, 1, 3)
+                          "session", res, status, None, 0.01, 0.1)
 
     def test_no_sleep(self):
         res = mock.Mock()

tox.ini

@@ -6,11 +6,15 @@ skipsdist = True
 [testenv]
 usedevelop = True
 install_command = pip install {opts} {packages}
+passenv = OS_* OPENSTACKSDK_*
 setenv =
     VIRTUAL_ENV={envdir}
     LANG=en_US.UTF-8
     LANGUAGE=en_US:en
     LC_ALL=C
+    OS_LOG_CAPTURE={env:OS_LOG_CAPTURE:true}
+    OS_STDOUT_CAPTURE={env:OS_STDOUT_CAPTURE:true}
+    OS_STDERR_CAPTURE={env:OS_STDERR_CAPTURE:true}
 deps =
     -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
     -r{toxinidir}/test-requirements.txt
@@ -19,13 +23,14 @@ commands = stestr run {posargs}
            stestr slowest
 
 [testenv:examples]
-passenv = OS_* OPENSTACKSDK_*
 commands = stestr --test-path ./openstack/tests/examples run {posargs}
            stestr slowest
 
 [testenv:functional]
 basepython = {env:OPENSTACKSDK_TOX_PYTHON:python2}
-passenv = OS_* OPENSTACKSDK_*
+setenv =
+    {[testenv]setenv}
+    OS_TEST_TIMEOUT=60
 commands = stestr --test-path ./openstack/tests/functional run --serial {posargs}
            stestr slowest