diff --git a/manila_tempest_tests/tests/api/admin/test_share_manage.py b/manila_tempest_tests/tests/api/admin/test_share_manage.py
index 78d28ee..c7efa01 100644
--- a/manila_tempest_tests/tests/api/admin/test_share_manage.py
+++ b/manila_tempest_tests/tests/api/admin/test_share_manage.py
@@ -14,13 +14,14 @@
 #    under the License.
 
 import six
-from tempest import config  # noqa
-from tempest import test  # noqa
-from tempest_lib.common.utils import data_utils  # noqa
-from tempest_lib import exceptions as lib_exc  # noqa
-import testtools  # noqa
+from tempest import config
+from tempest import test
+from tempest_lib.common.utils import data_utils
+from tempest_lib import exceptions as lib_exc
+import testtools
 
 from manila_tempest_tests.tests.api import base
+from manila_tempest_tests import utils
 
 CONF = config.CONF
 
@@ -78,7 +79,7 @@
 
         # Data for creating shares in parallel
         data = [creation_data, creation_data]
-        if float(CONF.share.max_api_microversion) >= 2.8:
+        if utils.is_microversion_ge(CONF.share.max_api_microversion, "2.8"):
             data.append(creation_data)
         shares_created = cls.create_shares(data)
 
@@ -127,7 +128,7 @@
         share = self.shares_v2_client.get_share(share['id'], version="2.6")
         self.assertEqual(self.st['share_type']['id'], share['share_type'])
 
-        if float(version) >= 2.8:
+        if utils.is_microversion_ge(version, "2.8"):
             self.assertEqual(is_public, share['is_public'])
         else:
             self.assertFalse(share['is_public'])
@@ -139,9 +140,7 @@
                           self.shares_v2_client.get_share,
                           share['id'])
 
-    @testtools.skipIf(
-        float(CONF.share.max_api_microversion) < 2.8,
-        "Only for API Microversion >= 2.8")
+    @base.skip_if_microversion_not_supported("2.8")
     @test.attr(type=["gate", "smoke"])
     def test_manage_with_is_public_True(self):
         self._test_manage(share=self.shares[2], is_public=True)
diff --git a/manila_tempest_tests/tests/api/admin/test_share_types.py b/manila_tempest_tests/tests/api/admin/test_share_types.py
index d58c61c..a521aad 100644
--- a/manila_tempest_tests/tests/api/admin/test_share_types.py
+++ b/manila_tempest_tests/tests/api/admin/test_share_types.py
@@ -20,7 +20,7 @@
 from tempest_lib import exceptions as lib_exc  # noqa
 
 from manila_tempest_tests.tests.api import base
-
+from manila_tempest_tests import utils
 
 CONF = config.CONF
 
@@ -51,7 +51,7 @@
     def _verify_is_public_key_name(self, share_type, version):
         old_key_name = 'os-share-type-access:is_public'
         new_key_name = 'share_type_access:is_public'
-        if float(version) > 2.6:
+        if utils.is_microversion_gt(version, "2.6"):
             self.assertIn(new_key_name, share_type)
             self.assertNotIn(old_key_name, share_type)
         else:
diff --git a/manila_tempest_tests/tests/api/base.py b/manila_tempest_tests/tests/api/base.py
index be56719..d57b493 100644
--- a/manila_tempest_tests/tests/api/base.py
+++ b/manila_tempest_tests/tests/api/base.py
@@ -15,7 +15,6 @@
 
 import copy
 import inspect
-import random
 import traceback
 
 from oslo_concurrency import lockutils
@@ -27,27 +26,15 @@
 from tempest import test
 from tempest_lib.common.utils import data_utils
 from tempest_lib import exceptions
-import testtools
 
 from manila_tempest_tests import clients_share as clients
 from manila_tempest_tests import share_exceptions
+from manila_tempest_tests import utils
 
 CONF = config.CONF
 LOG = log.getLogger(__name__)
 
 
-def rand_ip():
-    """This uses the TEST-NET-3 range of reserved IP addresses.
-
-    Using this range, which are reserved solely for use in
-    documentation and example source code, should avoid any potential
-    conflicts in real-world testing.
-    """
-    TEST_NET_3 = '203.0.113.'
-    final_octet = six.text_type(random.randint(0, 255))
-    return TEST_NET_3 + final_octet
-
-
 class handle_cleanup_exceptions(object):
     """Handle exceptions raised with cleanup operations.
 
@@ -91,19 +78,7 @@
     return wrapped_func
 
 
-def is_microversion_supported(microversion):
-    if (float(microversion) > float(CONF.share.max_api_microversion) or
-            float(microversion) < float(CONF.share.min_api_microversion)):
-        return False
-    return True
-
-
-def skip_if_microversion_not_supported(microversion):
-    """Decorator for tests that are microversion-specific."""
-    if not is_microversion_supported(microversion):
-        reason = ("Skipped. Test requires microversion '%s'." % microversion)
-        return testtools.skip(reason)
-    return lambda f: f
+skip_if_microversion_not_supported = utils.skip_if_microversion_not_supported
 
 
 class BaseSharesTest(test.BaseTestCase):
@@ -125,7 +100,7 @@
     method_isolated_creds = []
 
     def skip_if_microversion_not_supported(self, microversion):
-        if not is_microversion_supported(microversion):
+        if not utils.is_microversion_supported(microversion):
             raise self.skipException(
                 "Microversion '%s' is not supported." % microversion)
 
@@ -657,8 +632,8 @@
         data = {
             "name": data_utils.rand_name("ss-name"),
             "description": data_utils.rand_name("ss-desc"),
-            "dns_ip": rand_ip(),
-            "server": rand_ip(),
+            "dns_ip": utils.rand_ip(),
+            "server": utils.rand_ip(),
             "domain": data_utils.rand_name("ss-domain"),
             "user": data_utils.rand_name("ss-user"),
             "password": data_utils.rand_name("ss-password"),