diff --git a/ironic/tests/drivers/test_deploy_utils.py b/ironic/tests/drivers/test_deploy_utils.py
index 7e1d1ce727..6bc7ce5195 100644
--- a/ironic/tests/drivers/test_deploy_utils.py
+++ b/ironic/tests/drivers/test_deploy_utils.py
@@ -20,8 +20,8 @@ import os
 import shutil
 import stat
 import tempfile
+import time
 
-import fixtures
 import mock
 from oslo_concurrency import processutils
 from oslo_config import cfg
@@ -132,16 +132,9 @@ image=kernel
 """
 
 
+@mock.patch.object(time, 'sleep', lambda seconds: None)
 class PhysicalWorkTestCase(tests_base.TestCase):
 
-    def setUp(self):
-        super(PhysicalWorkTestCase, self).setUp()
-
-        def noop(*args, **kwargs):
-            pass
-
-        self.useFixture(fixtures.MonkeyPatch('time.sleep', noop))
-
     def _mock_calls(self, name_list):
         patch_list = [mock.patch.object(utils, name) for name in name_list]
         mock_list = [patcher.start() for patcher in patch_list]
diff --git a/ironic/tests/drivers/test_pxe.py b/ironic/tests/drivers/test_pxe.py
index 22cf11dfdd..ff92bf40e7 100644
--- a/ironic/tests/drivers/test_pxe.py
+++ b/ironic/tests/drivers/test_pxe.py
@@ -20,7 +20,6 @@
 import os
 import tempfile
 
-import fixtures
 import mock
 from oslo_concurrency import processutils
 from oslo_config import cfg
@@ -703,9 +702,10 @@ class PXEDriverTestCase(db_base.DbTestCase):
     @mock.patch.object(deploy_utils, 'notify_deploy_complete')
     @mock.patch.object(deploy_utils, 'switch_pxe_config')
     @mock.patch.object(iscsi_deploy, 'InstanceImageCache')
-    def _test_continue_deploy(self, is_localboot, mock_image_cache,
-                              mock_switch_config, notify_mock,
-                              mock_node_boot_dev, mock_clean_pxe):
+    @mock.patch.object(deploy_utils, 'deploy')
+    def _test_continue_deploy(self, is_localboot, mock_deploy,
+                              mock_image_cache, mock_switch_config,
+                              notify_mock, mock_node_boot_dev, mock_clean_pxe):
         token_path = self._create_token_file()
 
         # set local boot
@@ -720,15 +720,9 @@ class PXEDriverTestCase(db_base.DbTestCase):
         self.node.save()
 
         root_uuid = "12345678-1234-1234-1234-1234567890abcxyz"
+        mock_deploy.return_value = root_uuid
         boot_mode = None
 
-        def fake_deploy(**kwargs):
-            return root_uuid
-
-        self.useFixture(fixtures.MonkeyPatch(
-                'ironic.drivers.modules.deploy_utils.deploy',
-                fake_deploy))
-
         with task_manager.acquire(self.context, self.node.uuid) as task:
             task.driver.vendor._continue_deploy(
                     task, address='123456', iqn='aaa-bbb', key='fake-56789')
diff --git a/ironic/tests/drivers/test_ssh.py b/ironic/tests/drivers/test_ssh.py
index 49e9b946c4..f70e213093 100644
--- a/ironic/tests/drivers/test_ssh.py
+++ b/ironic/tests/drivers/test_ssh.py
@@ -15,7 +15,8 @@
 
 """Test class for Ironic SSH power driver."""
 
-import fixtures
+import tempfile
+
 import mock
 from oslo_concurrency import processutils
 from oslo_config import cfg
@@ -74,8 +75,8 @@ class SSHValidateParametersTestCase(db_base.DbTestCase):
     def test__parse_driver_info_good_file(self):
         # make sure we get back the expected things
         d_info = db_utils.get_test_ssh_info('file')
-        tempdir = self.useFixture(fixtures.TempDir())
-        key_path = tempdir.path + '/foo'
+        tempdir = tempfile.mkdtemp()
+        key_path = tempdir + '/foo'
         open(key_path, 'wt').close()
         d_info['ssh_key_filename'] = key_path
         node = obj_utils.get_test_node(
diff --git a/ironic/tests/test_disk_partitioner.py b/ironic/tests/test_disk_partitioner.py
index b8a2f31dad..00cbef5e4c 100644
--- a/ironic/tests/test_disk_partitioner.py
+++ b/ironic/tests/test_disk_partitioner.py
@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import fixtures
+import eventlet
 import mock
 from testtools.matchers import HasLength
 
@@ -23,17 +23,9 @@ from ironic.common import utils
 from ironic.tests import base
 
 
+@mock.patch.object(eventlet.greenthread, 'sleep', lambda seconds: None)
 class DiskPartitionerTestCase(base.TestCase):
 
-    def setUp(self):
-        super(DiskPartitionerTestCase, self).setUp()
-
-        def noop(*args, **kwargs):
-            pass
-
-        self.useFixture(fixtures.MonkeyPatch('eventlet.greenthread.sleep',
-                                             noop))
-
     def test_add_partition(self):
         dp = disk_partitioner.DiskPartitioner('/dev/fake')
         dp.add_partition(1024)