[RBAC] Fix test tags

There are a number of tests whose direction is
not marked correctly.

Change-Id: I34bed8ac06aad666fe1d4c8eb79e005716970bf0
diff --git a/manila_tempest_tests/tests/rbac/test_share_types.py b/manila_tempest_tests/tests/rbac/test_share_types.py
index bc75597..2263747 100644
--- a/manila_tempest_tests/tests/rbac/test_share_types.py
+++ b/manila_tempest_tests/tests/rbac/test_share_types.py
@@ -78,7 +78,7 @@
         cls.share_member_client = project_member.share_v2.SharesV2Client()
 
     @decorators.idempotent_id('b24bf137-352a-4ebd-b736-27518d32c1bd')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API)
     def test_create_share_type(self):
         share_type = self.do_request(
             'create_share_type', expected_status=200,
diff --git a/manila_tempest_tests/tests/rbac/test_shares.py b/manila_tempest_tests/tests/rbac/test_shares.py
index ad6bb35..2e40683 100644
--- a/manila_tempest_tests/tests/rbac/test_shares.py
+++ b/manila_tempest_tests/tests/rbac/test_shares.py
@@ -121,7 +121,7 @@
         cls.share_member_client = project_member.share_v2.SharesV2Client()
 
     @decorators.idempotent_id('14a52454-cba0-4973-926a-28e924ae2e63')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API_WITH_BACKEND)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_get_share(self):
         share = self.create_share(
             self.share_member_client, self.share_type['id'])
diff --git a/manila_tempest_tests/tests/rbac/test_snapshots.py b/manila_tempest_tests/tests/rbac/test_snapshots.py
index a546fb0..beffc52 100644
--- a/manila_tempest_tests/tests/rbac/test_snapshots.py
+++ b/manila_tempest_tests/tests/rbac/test_snapshots.py
@@ -96,7 +96,7 @@
             cls.alt_project_share_v2_client, share_type['id'])
 
     @decorators.idempotent_id('e55b1a01-0fcb-42aa-8cc4-b041fc75f1e4')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API_WITH_BACKEND)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_get_snapshot(self):
         snapshot = self.create_snapshot(
             self.share_member_client, self.share['id'])
@@ -110,7 +110,7 @@
             snapshot_id=alt_snapshot['id'])
 
     @decorators.idempotent_id('3b209017-f5ad-4daa-8932-582a75975bbe')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API_WITH_BACKEND)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_list_snapshot(self):
         snap = self.create_snapshot(
             self.share_member_client, self.share['id'])
@@ -139,7 +139,7 @@
                         snapshot_id=snapshot['id'])
 
     @decorators.idempotent_id('6de91ee0-d27e-409a-957b-75489d4e7291')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API_WITH_BACKEND)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_delete_snapshot(self):
         snap = self.create_snapshot(
             self.share_member_client, self.share['id'])
@@ -155,7 +155,7 @@
         self.client.wait_for_resource_deletion(snapshot_id=alt_snap['id'])
 
     @decorators.idempotent_id('3ac10dfb-3445-4052-855a-a17056d16a9c')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API_WITH_BACKEND)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_force_delete_snapshot(self):
         snap = self.create_snapshot(
             self.share_member_client, self.share['id'])
@@ -172,7 +172,7 @@
         self.client.wait_for_resource_deletion(snapshot_id=alt_snap['id'])
 
     @decorators.idempotent_id('513c8fef-9597-4e6c-a811-fb89b456d457')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API_WITH_BACKEND)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_rename_snapshot(self):
         snap = self.create_snapshot(
             self.share_member_client, self.share['id'])
@@ -188,7 +188,7 @@
             snapshot_id=alt_snap['id'], name=name)
 
     @decorators.idempotent_id('a5e99bfb-8767-4680-9e39-bde767e4b8f8')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API_WITH_BACKEND)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_reset_snapshot(self):
         snap = self.create_snapshot(
             self.share_member_client, self.share['id'])
@@ -232,7 +232,7 @@
             snapshot_id=alt_snapshot['id'])
 
     @decorators.idempotent_id('0dcc1f68-86e2-432e-ad50-51c3cb78b986')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API_WITH_BACKEND)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_list_snapshot(self):
         share_client = getattr(self, 'share_member_client', self.client)
         snap = self.create_snapshot(share_client, self.share['id'])
@@ -355,7 +355,7 @@
         super(TestProjectReaderTestsNFS, self).test_get_snapshot()
 
     @decorators.idempotent_id('fef4285a-a489-4fec-97af-763c2e33282e')
-    @tc.attr(base.TAG_NEGATIVE, base.TAG_API_WITH_BACKEND)
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_list_snapshot(self):
         super(TestProjectReaderTestsNFS, self).test_list_snapshot()