diff --git a/.coveragerc b/.coveragerc
index 5ec322385a4123f28a233ee9385be9f4fe1271cb..23cc3528d7537850cc2ce74f2c5dc1c441827609 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -7,9 +7,11 @@ omit =
   ding/utils/k8s_helper.py
   ding/config/utils.py
   ding/entry/tests/test_serial_entry_algo.py
+  ding/entry/tests/test_serial_entry.py
   ding/entry/dist_entry.py
   ding/entry/cli.py
   ding/entry/predefined_config.py
   ding/hpc_rl/*
   ding/worker/collector/tests/speed_test/*
   ding/envs/env_wrappers/env_wrappers.py
+  ding/rl_utils/tests/test_ppg.py
diff --git a/ding/entry/tests/test_serial_entry.py b/ding/entry/tests/test_serial_entry.py
index a46d6e9ae1140d8ba79c0f16ca55cdf5e410e4b6..670d48fe0683c7ebdacb914348a7797a794cf57b 100644
--- a/ding/entry/tests/test_serial_entry.py
+++ b/ding/entry/tests/test_serial_entry.py
@@ -354,8 +354,6 @@ def test_cql():
         serial_pipeline_offline(config, seed=0)
     except Exception:
         assert False, "pipeline fail"
-    finally:
-        os.popen('rm -rf default_experiment')
 
 
 @pytest.mark.unittest
@@ -364,10 +362,12 @@ def test_d4pg():
     config[0].policy.learn.update_per_collect = 1
     try:
         serial_pipeline(config, seed=0, max_iterations=1)
-    except Exception:
+    except Exception as e:
         assert False, "pipeline fail"
+        print(repr(e))
 
 
+@pytest.mark.unittest
 def test_discrete_cql():
     # train expert
     config = [deepcopy(cartpole_qrdqn_config), deepcopy(cartpole_qrdqn_create_config)]
diff --git a/ding/entry/tests/test_serial_entry_algo.py b/ding/entry/tests/test_serial_entry_algo.py
index b6e079c4215ddb6f3cd9ab41440925ffe87a219d..d8fc58c611243078f49a187931463428a2434e89 100644
--- a/ding/entry/tests/test_serial_entry_algo.py
+++ b/ding/entry/tests/test_serial_entry_algo.py
@@ -395,7 +395,18 @@ def test_discrete_cql():
         f.write("27. discrete cql\n")
 
 
-@pytest.mark.algotest
+# @pytest.mark.algotest
+def test_wqmix():
+    config = [deepcopy(cooperative_navigation_wqmix_config), deepcopy(cooperative_navigation_wqmix_create_config)]
+    try:
+        serial_pipeline(config, seed=0)
+    except Exception:
+        assert False, "pipeline fail"
+    with open("./algo_record.log", "a+") as f:
+        f.write("28. wqmix\n")
+
+
+# @pytest.mark.algotest
 def test_running_on_orchestrator():
     from kubernetes import config, client, dynamic
     cluster_name = 'test-k8s-launcher'
@@ -438,17 +449,6 @@ def test_running_on_orchestrator():
     launcher.delete_cluster()
 
 
-# @pytest.mark.algotest
-def test_wqmix():
-    config = [deepcopy(cooperative_navigation_wqmix_config), deepcopy(cooperative_navigation_wqmix_create_config)]
-    try:
-        serial_pipeline(config, seed=0)
-    except Exception:
-        assert False, "pipeline fail"
-    with open("./algo_record.log", "a+") as f:
-        f.write("27. wqmix\n")
-
-
 def create_object_from_config(config_path: str, namespace: str = 'default'):
     args = ['kubectl', 'apply', '-n', namespace, '-f', config_path]
     proc = subprocess.Popen(args, stderr=subprocess.PIPE)