Increase the test_qos disk usage limit

The lowest limit for disk usage for Hyper-V instances is 8 KB/s.
Setting it that low, however, can lead to some test timeouts, as
the VM may fail to finish booting in time.

Increases the QoS limit to 1 MB/s.

Change-Id: Iedc8f1add74e4c299f76613a622976b348f278f0

oswin_tempest_plugin/tests/scenario/test_qos.py

@@ -13,6 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from oslo_utils import units
+
 from oswin_tempest_plugin.tests._mixins import optional_feature
 from oswin_tempest_plugin.tests import test_base
 
@@ -28,4 +30,4 @@ class QosTestCase(test_base.TestBase,
     """
 
     _FEATURE_FLAVOR = {
-        'extra_specs': {'quota:disk_total_bytes_sec': '200'}}
+        'extra_specs': {'quota:disk_total_bytes_sec': str(units.Mi)}}

requirements.txt

@@ -6,5 +6,6 @@ pbr>=2.0 # Apache-2.0
 
 oslo.config>=4.0.0,!=4.3.0,!=4.4.0 # Apache-2.0
 oslo.log>=3.22.0 # Apache-2.0
+oslo.utils>=3.20.0 # Apache-2.0
 tempest>=16.1.0 # Apache-2.0
 pywinrm>=0.2.2 # MIT