Get rid of several test dependencies

Change-Id: I263c76a3cf12c4c578a41b632151a83ec970f915

test-requirements.txt

@@ -13,10 +13,7 @@ pytest-html                                            # Mozilla Public License
 pytest-xdist                                           # MIT
 
 coverage!=4.4                                          # Apache License, Version 2.0
-ddt                                                    # MIT
-python-dateutil                                        # Dual License
+ddt!=1.4.0                                             # MIT
 testtools                                              # MIT
 
-sphinx!=1.6.6,!=1.6.7,!=2.1.0                          # BSD
-oslosphinx                                             # Apache Software License
-oslotest                                               # Apache Software License
+docutils

tests/unit/task/scenarios/ceilometer/test_utils.py

@@ -16,8 +16,6 @@ import copy
 import datetime as dt
 from unittest import mock
 
-from dateutil import parser
-
 from rally import exceptions
 from rally_openstack.task.scenarios.ceilometer import utils
 from tests.unit import test
@@ -25,6 +23,15 @@ from tests.unit import test
 CEILOMETER_UTILS = "rally_openstack.task.scenarios.ceilometer.utils"
 
 
+def get_dt_diff(dt1, dt2):
+    """Returns a diff between to datetime objects in seconds."""
+    if isinstance(dt1, str):
+        dt1 = dt.datetime.strptime(dt1, "%Y-%m-%dT%H:%M:%S")
+    if isinstance(dt2, str):
+        dt2 = dt.datetime.strptime(dt2, "%Y-%m-%dT%H:%M:%S")
+    return (dt1 - dt2).seconds
+
+
 class CeilometerScenarioTestCase(test.ScenarioTestCase):
     def setUp(self):
         super(CeilometerScenarioTestCase, self).setUp()
@@ -44,8 +51,8 @@ class CeilometerScenarioTestCase(test.ScenarioTestCase):
                     "resource_id": "fake_uuid",
                     "timestamp": test_timestamp.isoformat()}
         self.assertEqual(expected, result[0][0])
-        samples_int = (parser.parse(result[0][0]["timestamp"])
-                       - parser.parse(result[0][1]["timestamp"])).seconds
+        samples_int = get_dt_diff(result[0][0]["timestamp"],
+                                  result[0][1]["timestamp"])
         self.assertEqual(60, samples_int)
 
     @mock.patch("%s.uuid.uuid4" % CEILOMETER_UTILS)
@@ -63,8 +70,8 @@ class CeilometerScenarioTestCase(test.ScenarioTestCase):
                     "resource_id": "fake_uuid",
                     "timestamp": test_timestamp.isoformat()}
         self.assertEqual(expected, result[0][0])
-        samples_int = (parser.parse(result[0][-1]["timestamp"])
-                       - parser.parse(result[1][0]["timestamp"])).seconds
+        samples_int = get_dt_diff(result[0][-1]["timestamp"],
+                                  result[1][0]["timestamp"])
         # NOTE(idegtiarov): here we check that interval between last sample in
         # first batch and first sample in second batch is equal 60 sec.
         self.assertEqual(60, samples_int)

tests/unit/test.py

@@ -18,7 +18,7 @@ import os
 from unittest import mock
 import uuid
 
-from oslotest import base
+import testtools
 
 from rally.common import cfg
 from rally.common import db
@@ -41,7 +41,7 @@ class DatabaseFixture(cfg.fixture.Config):
         db.schema_create()
 
 
-class TestCase(base.BaseTestCase):
+class TestCase(testtools.TestCase):
     """Test case base class for all unit tests."""
 
     def setUp(self):