Fix pylint errors of vping

Change-Id: I272f0eb6fb0f2a274484a3dcfacd8ed65e4a5b23
Signed-off-by: Linda Wang <wangwulin@huawei.com>

3 files changed, 25 insertions, 22 deletions

diff --git a/functest/opnfv_tests/openstack/vping/vping_base.py b/functest/opnfv_tests/openstack/vping/vping_base.py
index de431fe1f..318e9c45f 100644
--- a/functest/opnfv_tests/openstack/vping/vping_base.py
+++ b/functest/opnfv_tests/openstack/vping/vping_base.py
@@ -6,9 +6,10 @@
 #
 # http://www.apache.org/licenses/LICENSE-2.0
 
+"""Define the parent class of vping_ssh and vping_userdata testcases."""
+
 from datetime import datetime
 import logging
-import os
 import time
 import uuid
 
@@ -32,14 +33,11 @@ class VPingBase(testcase.TestCase):
     internal network.
     This class is responsible for creating the image, internal network.
     """
+    # pylint: disable=too-many-instance-attributes
 
     def __init__(self, **kwargs):
         super(VPingBase, self).__init__(**kwargs)
 
-        # This line is here simply for pep8 as the 'os' package import appears
-        # to be required for mock and the unit tests will fail without it
-        os.environ
-
         self.logger = logging.getLogger(__name__)
 
         if 'os_creds' in kwargs:
@@ -59,6 +57,7 @@ class VPingBase(testcase.TestCase):
         self.network_creator = None
         self.vm1_creator = None
         self.vm2_creator = None
+        self.router_creator = None
 
         # Shared metadata
         self.guid = ''
@@ -73,7 +72,8 @@ class VPingBase(testcase.TestCase):
         self.vm_boot_timeout = CONST.__getattribute__('vping_vm_boot_timeout')
         self.vm_delete_timeout = CONST.__getattribute__(
             'vping_vm_delete_timeout')
-        self.vm_ssh_connect_timeout = CONST.vping_vm_ssh_connect_timeout
+        self.vm_ssh_connect_timeout = CONST.__getattribute__(
+            'vping_vm_ssh_connect_timeout')
         self.ping_timeout = CONST.__getattribute__('vping_ping_timeout')
         self.flavor_name = 'vping-flavor' + self.guid
 
@@ -91,16 +91,17 @@ class VPingBase(testcase.TestCase):
         self.logger.info('Begin virtual environment setup')
 
         self.start_time = time.time()
-        self.logger.info("vPing Start Time:'%s'" % (
+        self.logger.info(
+            "vPing Start Time:'%s'",
             datetime.fromtimestamp(self.start_time).strftime(
-                '%Y-%m-%d %H:%M:%S')))
+                '%Y-%m-%d %H:%M:%S'))
 
         image_base_name = '{}-{}'.format(
             CONST.__getattribute__('vping_image_name'),
             str(self.guid))
         os_image_settings = openstack_tests.cirros_image_settings(
             image_base_name, image_metadata=self.cirros_image_config)
-        self.logger.info("Creating image with name: '%s'" % image_base_name)
+        self.logger.info("Creating image with name: '%s'", image_base_name)
 
         self.image_creator = deploy_utils.create_image(
             self.os_creds, os_image_settings)
@@ -117,18 +118,18 @@ class VPingBase(testcase.TestCase):
         vping_physical_network = None
         vping_segmentation_id = None
 
-        if (hasattr(CONST, 'vping_network_type')):
+        if hasattr(CONST, 'vping_network_type'):
             vping_network_type = CONST.__getattribute__(
                 'vping_network_type')
-        if (hasattr(CONST, 'vping_physical_network')):
+        if hasattr(CONST, 'vping_physical_network'):
             vping_physical_network = CONST.__getattribute__(
                 'vping_physical_network')
-        if (hasattr(CONST, 'vping_segmentation_id')):
+        if hasattr(CONST, 'vping_segmentation_id'):
             vping_segmentation_id = CONST.__getattribute__(
                 'vping_segmentation_id')
 
         self.logger.info(
-            "Creating network with name: '%s'" % private_net_name)
+            "Creating network with name: '%s'", private_net_name)
         self.network_creator = deploy_utils.create_network(
             self.os_creds,
             NetworkConfig(
@@ -154,7 +155,7 @@ class VPingBase(testcase.TestCase):
         self.creators.append(self.router_creator)
 
         self.logger.info(
-            "Creating flavor with name: '%s'" % self.flavor_name)
+            "Creating flavor with name: '%s'", self.flavor_name)
         scenario = CONST.__getattribute__('DEPLOY_SCENARIO')
         flavor_metadata = None
         if 'ovs' in scenario or 'fdio' in scenario:
@@ -200,8 +201,8 @@ class VPingBase(testcase.TestCase):
             for creator in reversed(self.creators):
                 try:
                     creator.clean()
-                except Exception as e:
-                    self.logger.error('Unexpected error cleaning - %s', e)
+                except Exception as error:  # pylint: disable=broad-except
+                    self.logger.error('Unexpected error cleaning - %s', error)
 
     def _do_vping(self, vm_creator, test_ip):
         """
diff --git a/functest/opnfv_tests/openstack/vping/vping_ssh.py b/functest/opnfv_tests/openstack/vping/vping_ssh.py
index 0d92a7e1d..7df767edc 100644
--- a/functest/opnfv_tests/openstack/vping/vping_ssh.py
+++ b/functest/opnfv_tests/openstack/vping/vping_ssh.py
@@ -158,7 +158,7 @@ class VPingSSH(vping_base.VPingBase):
             'functest.opnfv_tests.openstack.vping', 'ping.sh')
         try:
             scp.put(ping_script, "~/")
-        except Exception:
+        except Exception:  # pylint: disable=broad-except
             self.logger.error("Cannot SCP the file '%s'", ping_script)
             return False
 
diff --git a/functest/opnfv_tests/openstack/vping/vping_userdata.py b/functest/opnfv_tests/openstack/vping/vping_userdata.py
index 4cc8f42f5..ceba0917a 100644
--- a/functest/opnfv_tests/openstack/vping/vping_userdata.py
+++ b/functest/opnfv_tests/openstack/vping/vping_userdata.py
@@ -7,6 +7,8 @@
 #
 # http://www.apache.org/licenses/LICENSE-2.0
 
+"""vping_userdata testcase."""
+
 import time
 
 from snaps.config.network import PortConfig
@@ -47,8 +49,8 @@ class VPingUserdata(vping_base.VPingBase):
                 port_settings=[port1_settings])
 
             self.logger.info(
-                "Creating VM 1 instance with name: '%s'"
-                % instance1_settings.name)
+                "Creating VM 1 instance with name: '%s'",
+                instance1_settings.name)
             self.vm1_creator = deploy_utils.create_vm_instance(
                 self.os_creds, instance1_settings,
                 self.image_creator.image_settings)
@@ -69,8 +71,8 @@ class VPingUserdata(vping_base.VPingBase):
                     userdata=userdata)
 
                 self.logger.info(
-                    "Creating VM 2 instance with name: '%s'"
-                    % instance2_settings.name)
+                    "Creating VM 2 instance with name: '%s'",
+                    instance2_settings.name)
                 self.vm2_creator = deploy_utils.create_vm_instance(
                     self.os_creds, instance2_settings,
                     self.image_creator.image_settings)
@@ -113,7 +115,7 @@ class VPingUserdata(vping_base.VPingBase):
                     tries += 1
                 else:
                     self.logger.debug(
-                        "Pinging %s. Waiting for response..." % test_ip)
+                        "Pinging %s. Waiting for response...", test_ip)
             sec += 1
 
         return exit_code