diff --git a/tests20/python_client/base/ClientRequest.py b/tests20/python_client/base/client_request.py
similarity index 65%
rename from tests20/python_client/base/ClientRequest.py
rename to tests20/python_client/base/client_request.py
index a34706fa80..7b4ff5a39e 100644
--- a/tests20/python_client/base/ClientRequest.py
+++ b/tests20/python_client/base/client_request.py
@@ -2,13 +2,13 @@ import pytest
 import sys
 
 sys.path.append("..")
-from base.Connections import ApiConnections
-from base.Collection import ApiCollection
-from base.Partition import ApiPartition
-from base.Index import ApiIndex
-from base.Utility import ApiUtility
+from base.connections import ApiConnections
+from base.collection import ApiCollection
+from base.partition import ApiPartition
+from base.index import ApiIndex
+from base.utility import ApiUtility
 
-from config.my_info import my_info
+from config.test_info import test_info
 from common.common_func import *
 from check.func_check import *
 
@@ -40,12 +40,12 @@ def func_req(_list, **kwargs):
 
 class ParamInfo:
     def __init__(self):
-        self.param_ip = ""
+        self.param_host = ""
         self.param_port = ""
         self.param_handler = ""
 
-    def prepare_param_info(self, ip, port, handler):
-        self.param_ip = ip
+    def prepare_param_info(self, host, port, handler):
+        self.param_host = host
         self.param_port = port
         self.param_handler = handler
 
@@ -82,13 +82,13 @@ class Base:
     @pytest.fixture(scope="module", autouse=True)
     def initialize_env(self, request):
         """ clean log before testing """
-        modify_file([my_info.test_log, my_info.test_err])
+        modify_file([test_info.log_info, test_info.log_err])
         log.info("[initialize_milvus] Log cleaned up, start testing...")
 
-        ip = request.config.getoption("--ip")
+        host = request.config.getoption("--host")
         port = request.config.getoption("--port")
         handler = request.config.getoption("--handler")
-        param_info.prepare_param_info(ip, port, handler)
+        param_info.prepare_param_info(host, port, handler)
 
 
 class ApiReq(Base):
@@ -97,9 +97,14 @@ class ApiReq(Base):
     Public methods that can be used to add cases.
     """
 
-    def func(self):
-        pass
+    def _connect(self):
+        """ Testing func """
+        self.connection.configure(check_res='', default={"host": "192.168.1.240", "port": "19530"})
+        res = self.connection.get_connection(alias='default')
+        return res
 
-    @staticmethod
-    def func_2():
-        pass
+    def _collection(self, name=get_unique_str, data=None, schema=None, check_res=None, **kwargs):
+        """ Testing func """
+        self._connect()
+        res = self.collection.collection_init(name=name, data=data, schema=schema, check_res=check_res, **kwargs)
+        return res
diff --git a/tests20/python_client/base/Collection.py b/tests20/python_client/base/collection.py
similarity index 99%
rename from tests20/python_client/base/Collection.py
rename to tests20/python_client/base/collection.py
index 264df81522..84530c05fa 100644
--- a/tests20/python_client/base/Collection.py
+++ b/tests20/python_client/base/collection.py
@@ -6,7 +6,7 @@ import sys
 sys.path.append("..")
 from check.param_check import *
 from check.func_check import *
-from utils.util_log import my_log as log
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/base/Connections.py b/tests20/python_client/base/connections.py
similarity index 98%
rename from tests20/python_client/base/Connections.py
rename to tests20/python_client/base/connections.py
index e07228512e..af294b2d2e 100644
--- a/tests20/python_client/base/Connections.py
+++ b/tests20/python_client/base/connections.py
@@ -6,7 +6,7 @@ import sys
 sys.path.append("..")
 from check.param_check import *
 from check.func_check import *
-from utils.util_log import my_log as log
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/base/Index.py b/tests20/python_client/base/index.py
similarity index 98%
rename from tests20/python_client/base/Index.py
rename to tests20/python_client/base/index.py
index 84ca45686b..b7dee81d8c 100644
--- a/tests20/python_client/base/Index.py
+++ b/tests20/python_client/base/index.py
@@ -6,7 +6,7 @@ import sys
 sys.path.append("..")
 from check.param_check import *
 from check.func_check import *
-from utils.util_log import my_log as log
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/base/Partition.py b/tests20/python_client/base/partition.py
similarity index 99%
rename from tests20/python_client/base/Partition.py
rename to tests20/python_client/base/partition.py
index b1f0549163..0944165804 100644
--- a/tests20/python_client/base/Partition.py
+++ b/tests20/python_client/base/partition.py
@@ -6,7 +6,7 @@ import sys
 sys.path.append("..")
 from check.param_check import *
 from check.func_check import *
-from utils.util_log import my_log as log
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/base/Utility.py b/tests20/python_client/base/utility.py
similarity index 98%
rename from tests20/python_client/base/Utility.py
rename to tests20/python_client/base/utility.py
index 94620969ec..51004fd9f3 100644
--- a/tests20/python_client/base/Utility.py
+++ b/tests20/python_client/base/utility.py
@@ -6,7 +6,7 @@ import sys
 sys.path.append("..")
 from check.param_check import *
 from check.func_check import *
-from utils.util_log import my_log as log
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/check/func_check.py b/tests20/python_client/check/func_check.py
index 7167d30e6a..eef4b5537b 100644
--- a/tests20/python_client/check/func_check.py
+++ b/tests20/python_client/check/func_check.py
@@ -1,4 +1,4 @@
-from utils.util_log import my_log as log
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
@@ -18,7 +18,8 @@ class CheckFunc:
         check_result = True
 
         if self.check_res is None:
-            log.info("self.check_res is None, the response of API: %s" % self.res)
+            pass
+            # log.info("self.check_res is None, the response of API: %s" % self.res)
         elif self.check_res == cname_param_check:
             check_result = self.req_cname_check(self.res, self.func_name, self.params.get('collection_name'))
         elif self.check_res == pname_param_check:
diff --git a/tests20/python_client/check/param_check.py b/tests20/python_client/check/param_check.py
index 4ad23e40ff..e3253c917d 100644
--- a/tests20/python_client/check/param_check.py
+++ b/tests20/python_client/check/param_check.py
@@ -2,7 +2,7 @@ import pytest
 import sys
 
 sys.path.append("..")
-from utils.util_log import my_log
+from utils.util_log import test_log as log
 
 
 def ip_check(ip):
@@ -10,17 +10,17 @@ def ip_check(ip):
         return True
 
     if not isinstance(ip, str):
-        my_log.error("[IP_CHECK] IP(%s) is not a string." % ip)
+        log.error("[IP_CHECK] IP(%s) is not a string." % ip)
         return False
 
     _list = ip.split('.')
     if len(_list) != 4:
-        my_log.error("[IP_CHECK] IP(%s) is wrong, please check manually." % ip)
+        log.error("[IP_CHECK] IP(%s) is wrong, please check manually." % ip)
         return False
 
     for i in _list:
         if not str(i).isdigit():
-            my_log.error("[IP_CHECK] IP(%s) is wrong, please check manually." % ip)
+            log.error("[IP_CHECK] IP(%s) is wrong, please check manually." % ip)
             return False
 
     return True
@@ -31,7 +31,7 @@ def number_check(num):
         return True
 
     else:
-        my_log.error("[NUMBER_CHECK] Number(%s) is not a numbers." % num)
+        log.error("[NUMBER_CHECK] Number(%s) is not a numbers." % num)
         return False
 
 
@@ -40,5 +40,5 @@ def exist_check(param, _list):
         return True
 
     else:
-        my_log.error("[EXIST_CHECK] Param(%s) is not in (%s)" % (param, _list))
+        log.error("[EXIST_CHECK] Param(%s) is not in (%s)" % (param, _list))
         return False
diff --git a/tests20/python_client/common/common_func.py b/tests20/python_client/common/common_func.py
index 482949abb2..8478487f5d 100644
--- a/tests20/python_client/common/common_func.py
+++ b/tests20/python_client/common/common_func.py
@@ -5,13 +5,15 @@ import numpy as np
 from sklearn import preprocessing
 
 from pymilvus_orm.types import DataType
-from utils.util_log import my_log as log
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
 """" Methods of processing data """
 l2 = lambda x, y: np.linalg.norm(np.array(x) - np.array(y))
 
+get_unique_str = "test_" + "".join(random.choice(string.ascii_letters + string.digits) for _ in range(8))
+
 
 def get_binary_default_fields(auto_id=True):
     default_fields = {
@@ -53,11 +55,6 @@ def get_entities(nb=default_nb, is_normal=False):
     return entities
 
 
-def get_unique_str(str_value="test_"):
-    prefix = "".join(random.choice(string.ascii_letters + string.digits) for _ in range(8))
-    return str_value + "_" + prefix
-
-
 def modify_file(file_name_list, input_content=""):
     if not isinstance(file_name_list, list):
         log.error("[modify_file] file is not a list.")
diff --git a/tests20/python_client/config/my_info.py b/tests20/python_client/config/test_info.py
similarity index 58%
rename from tests20/python_client/config/my_info.py
rename to tests20/python_client/config/test_info.py
index b66a9ecf50..0278e2c5c2 100644
--- a/tests20/python_client/config/my_info.py
+++ b/tests20/python_client/config/test_info.py
@@ -1,7 +1,7 @@
 import json
 
 
-class MyInfo:
+class TestInfo:
     def __init__(self):
         self.get_default_config()
 
@@ -9,8 +9,8 @@ class MyInfo:
         """ Make sure the path exists """
         self.home_dir = "/tmp/"
         self.log_dir = self.home_dir + "log/"
-        self.test_log = "%s/refactor_test.log" % self.log_dir
-        self.test_err = "%s/refactor_test.err" % self.log_dir
+        self.log_info = "%s/refactor_test.log" % self.log_dir
+        self.log_err = "%s/refactor_test.err" % self.log_dir
 
 
-my_info = MyInfo()
+test_info = TestInfo()
diff --git a/tests20/python_client/conftest.py b/tests20/python_client/conftest.py
index 2d14ce020b..65f23201db 100644
--- a/tests20/python_client/conftest.py
+++ b/tests20/python_client/conftest.py
@@ -3,6 +3,7 @@ import pytest
 
 def pytest_addoption(parser):
     parser.addoption("--ip", action="store", default="localhost", help="service's ip")
+    parser.addoption("--host", action="store", default="localhost", help="service's ip")
     parser.addoption("--service", action="store", default="", help="service address")
     parser.addoption("--port", action="store", default=19530, help="service's port")
     parser.addoption("--http_port", action="store", default=19121, help="http's port")
@@ -16,6 +17,11 @@ def ip(request):
     return request.config.getoption("--ip")
 
 
+@pytest.fixture
+def host(request):
+    return request.config.getoption("--host")
+
+
 @pytest.fixture
 def service(request):
     return request.config.getoption("--service")
diff --git a/tests20/python_client/pytest.ini b/tests20/python_client/pytest.ini
index 56c5f9692b..91d77821bf 100644
--- a/tests20/python_client/pytest.ini
+++ b/tests20/python_client/pytest.ini
@@ -1,4 +1,4 @@
 [pytest]
 
-addopts = --ip 192.168.1.240 --html=/Users/wt/Desktop/report.html
+addopts = --host 192.168.1.240 --html=/Users/wt/Desktop/report.html
 #  python3 -W ignore -m pytest
\ No newline at end of file
diff --git a/tests20/python_client/requirements.txt b/tests20/python_client/requirements.txt
index 174987cad8..c7de4737ec 100644
--- a/tests20/python_client/requirements.txt
+++ b/tests20/python_client/requirements.txt
@@ -1,5 +1,6 @@
 pytest==5.3.4
 sklearn==0.0
 numpy==1.18.1
+pytest-html==3.1.1
 pymilvus-orm==0.0.1
 git+https://github.com/Projectplace/pytest-tags
diff --git a/tests20/python_client/testcases/test_collection.py b/tests20/python_client/testcases/test_collection.py
index 300d51a89a..563f403a5d 100644
--- a/tests20/python_client/testcases/test_collection.py
+++ b/tests20/python_client/testcases/test_collection.py
@@ -1,6 +1,6 @@
 import pytest
-from base.ClientRequest import ApiReq
-from utils.util_log import my_log as log
+from base.client_request import ApiReq
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/testcases/test_connection.py b/tests20/python_client/testcases/test_connection.py
index 5cffda3675..06adeef1da 100644
--- a/tests20/python_client/testcases/test_connection.py
+++ b/tests20/python_client/testcases/test_connection.py
@@ -1,6 +1,6 @@
 import pytest
-from base.ClientRequest import ApiReq
-from utils.util_log import my_log as log
+from base.client_request import ApiReq
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
@@ -13,3 +13,12 @@ class TestConnection(ApiReq):
         res_ = self.connection.get_connection(alias='default')
         log.info("res : %s" % str(res_))
         log.info("self.connection : %s" % str(self.connection))
+        res_list = self.connection.list_connections()
+        log.info(res_list)
+
+    def test_connection_kwargs_param_check(self):
+        res_configure = self.connection.configure(check_res='', default={"host": "192.168.1.240", "port": "19530"})
+        log.info(res_configure)
+        res_list = self.connection.list_connections()
+        log.info(res_list)
+
diff --git a/tests20/python_client/testcases/test_index.py b/tests20/python_client/testcases/test_index.py
index 96a76b3f22..148dd544b4 100644
--- a/tests20/python_client/testcases/test_index.py
+++ b/tests20/python_client/testcases/test_index.py
@@ -1,6 +1,6 @@
 import pytest
-from base.ClientRequest import ApiReq
-from utils.util_log import my_log as log
+from base.client_request import ApiReq
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/testcases/test_params.py b/tests20/python_client/testcases/test_params.py
index 4f5d8da9ff..b2b38884b1 100644
--- a/tests20/python_client/testcases/test_params.py
+++ b/tests20/python_client/testcases/test_params.py
@@ -3,8 +3,8 @@ from milvus import DataType
 
 from common.common_type import *
 from common.common_func import *
-from base.ClientRequest import ApiReq
-from utils.util_log import my_log as log
+from base.client_request import ApiReq
+from utils.util_log import test_log as log
 
 
 class TestParams(ApiReq):
diff --git a/tests20/python_client/testcases/test_partition.py b/tests20/python_client/testcases/test_partition.py
index 35d4f9d474..34e5bfa8fb 100644
--- a/tests20/python_client/testcases/test_partition.py
+++ b/tests20/python_client/testcases/test_partition.py
@@ -1,6 +1,6 @@
 import pytest
-from base.ClientRequest import ApiReq
-from utils.util_log import my_log as log
+from base.client_request import ApiReq
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/testcases/test_schema.py b/tests20/python_client/testcases/test_schema.py
index e150ac234c..dcc6d6cfdb 100644
--- a/tests20/python_client/testcases/test_schema.py
+++ b/tests20/python_client/testcases/test_schema.py
@@ -1,6 +1,6 @@
 import pytest
-from base.ClientRequest import ApiReq
-from utils.util_log import my_log as log
+from base.client_request import ApiReq
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/testcases/test_search.py b/tests20/python_client/testcases/test_search.py
index 5e774631bb..249fae3d6f 100644
--- a/tests20/python_client/testcases/test_search.py
+++ b/tests20/python_client/testcases/test_search.py
@@ -1,6 +1,6 @@
 import pytest
-from base.ClientRequest import ApiReq
-from utils.util_log import my_log as log
+from base.client_request import ApiReq
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/testcases/test_utility.py b/tests20/python_client/testcases/test_utility.py
index ac4d455626..22961e9c82 100644
--- a/tests20/python_client/testcases/test_utility.py
+++ b/tests20/python_client/testcases/test_utility.py
@@ -1,6 +1,6 @@
 import pytest
-from base.ClientRequest import ApiReq
-from utils.util_log import my_log as log
+from base.client_request import ApiReq
+from utils.util_log import test_log as log
 from common.common_type import *
 
 
diff --git a/tests20/python_client/utils/util_log.py b/tests20/python_client/utils/util_log.py
index d0ec75959b..3178f01e4e 100644
--- a/tests20/python_client/utils/util_log.py
+++ b/tests20/python_client/utils/util_log.py
@@ -1,9 +1,9 @@
 import logging
 
-from config.my_info import my_info
+from config.test_info import test_info
 
 
-class MyLog:
+class TestLog:
     def __init__(self, logger, log_file, log_err):
         self.logger = logger
         self.log_file = log_file
@@ -30,6 +30,6 @@ class MyLog:
 
 
 """All modules share this unified log"""
-test_log = my_info.test_log
-test_err = my_info.test_err
-my_log = MyLog('refactor_test', test_log, test_err).log
+log_info = test_info.log_info
+log_err = test_info.log_err
+test_log = TestLog('refactor_test', log_info, log_err).log