[Tempest] Fix concurrency in test with listing share servers

Before it was possible to pick up temporary status of share server
and fail to filter share servers as second API call, because status
could be changed. Fix it by filtering with 'active' status.

Change-Id: Idcff68ce475d31b38a34d410970cc839b06d18b3
Closes-Bug: #1670757
diff --git a/manila_tempest_tests/tests/api/admin/test_share_servers.py b/manila_tempest_tests/tests/api/admin/test_share_servers.py
index ad5ae47..0c784e9 100644
--- a/manila_tempest_tests/tests/api/admin/test_share_servers.py
+++ b/manila_tempest_tests/tests/api/admin/test_share_servers.py
@@ -84,30 +84,40 @@
         any(s["share_network_name"] in self.sn_name_and_id for s in servers)
 
     @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
-    @ddt.data('host', 'status')
-    def test_list_share_servers_with_filters(self, filter_key):
+    def test_list_share_servers_with_host_filter(self):
         # Get list of share servers and remember 'host' name
         servers = self.shares_v2_client.list_share_servers()
         # Remember name of server that was used by this test suite
         # to be sure it will be still existing.
         for server in servers:
             if server["share_network_name"] in self.sn_name_and_id:
-                if not server[filter_key]:
+                if not server["host"]:
                     msg = ("Server '%s' has wrong value for host - "
-                           "'%s'.") % (server["id"], server[filter_key])
+                           "'%s'.") % (server["id"], server["host"])
                     raise lib_exc.InvalidContentType(message=msg)
-                filter_value = server[filter_key]
+                host = server["host"]
                 break
         else:
             msg = ("Appropriate server was not found. Its share_network_data"
                    ": '%s'. List of servers: '%s'.") % (self.sn_name_and_id,
                                                         six.text_type(servers))
             raise lib_exc.NotFound(message=msg)
-        search_opts = {filter_key: filter_value}
+        search_opts = {"host": host}
         servers = self.shares_v2_client.list_share_servers(search_opts)
         self.assertGreater(len(servers), 0)
         for server in servers:
-            self.assertEqual(server[filter_key], filter_value)
+            self.assertEqual(server["host"], host)
+
+    @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
+    def test_list_share_servers_with_status_filter(self):
+        search_opts = {"status": "active"}
+        servers = self.shares_v2_client.list_share_servers(search_opts)
+
+        # At least 1 share server should exist always - the one created
+        # for this class.
+        self.assertGreater(len(servers), 0)
+        for server in servers:
+            self.assertEqual(server["status"], "active")
 
     @tc.attr(base.TAG_POSITIVE, base.TAG_API_WITH_BACKEND)
     def test_list_share_servers_with_project_id_filter(self):