Assert that a client in stress test actually did some work.

Fix ugly assertion 'False is not true'.
Print warnings on higest verbose level about deprecated classes (#56).

helpers/control.py

@@ -124,6 +124,11 @@ class Wrk(Client):
     """
     FAIL_ON_SOCK_ERR=False
 
+    def __new__(cls, *args, **kwargs):
+        tf_cfg.dbg(5, "%s must be used instead of deprecated %s"
+                   % ("framework.Wrk", cls.__name__))
+        return super(Wrk, cls).__new__(cls, *args, **kwargs)
+
     def __init__(self, threads=-1, uri='/', ssl=False, timeout=60):
         Client.__init__(self, binary='wrk', uri=uri, ssl=ssl)
         self.threads = threads

testers/functional.py

@@ -13,6 +13,11 @@ class FunctionalTest(unittest.TestCase):
 
     tfw_clnt_msg_otherr = False
 
+    def __new__(cls, *args, **kwargs):
+        tf_cfg.dbg(5, "%s must be used instead of deprecated %s"
+                   % ("tester.TempestaTest", cls.__name__))
+        return super(FunctionalTest, cls).__new__(cls, *args, **kwargs)
+
     def create_client(self):
         """ Override to set desired list of benchmarks and their options. """
         self.client = deproxy.Client()

testers/stress.py

@@ -21,6 +21,11 @@ class StressTest(unittest.TestCase):
     errors_write = 0
     errors_timeout = 0
 
+    def __new__(cls, *args, **kwargs):
+        tf_cfg.dbg(5, "%s must be used instead of deprecated %s"
+                   % ("tester.TempestaTest", cls.__name__))
+        return super(StressTest, cls).__new__(cls, *args, **kwargs)
+
     def create_clients(self):
         """ Override to set desired list of benchmarks and their options. """
         self.wrk = control.Wrk()
@@ -162,6 +167,7 @@ def assert_client(self, req, err, statuses):
         tf_cfg.dbg(2, "errors read: %i" % e_read)
         tf_cfg.dbg(2, "errors write: %i" % e_write)
         tf_cfg.dbg(2, "errors timeout: %i" % e_timeout)
+        self.assertGreater(req, 0, msg="No work was done by the client")
         self.assertEqual(err, e_500 + e_502 + e_504 + e_connect, msg=msg)
 
     def assert_clients(self):
@@ -189,7 +195,9 @@ def assert_clients(self):
         exp_max = cl_req_cnt + cl_conn_cnt
         self.assertTrue(
             self.tempesta.stats.cl_msg_received >= exp_min and
-            self.tempesta.stats.cl_msg_received <= exp_max
+            self.tempesta.stats.cl_msg_received <= exp_max,
+            msg="Tempesta received bad number %d of messages, expected [%d:%d]"
+                % (self.tempesta.stats.cl_msg_received, exp_min, exp_max)
         )
 
     def assert_tempesta(self):