Cleanup TestYardstickNSCli class

Remove the console output during the test execution. Refactor the
"parse_arguments" test case.

JIRA: YARDSTICK-1224

Change-Id: I68954b986dbea70752adb121e0445e162bdfddcb
Signed-off-by: Rodolfo Alonso Hernandez <rodolfo.alonso.hernandez@intel.com>

1 files changed, 32 insertions, 18 deletions

diff --git a/yardstick/tests/unit/test_cmd/test_NSBperf.py b/yardstick/tests/unit/test_cmd/test_NSBperf.py
index d64b0c551..5de892212 100644
--- a/yardstick/tests/unit/test_cmd/test_NSBperf.py
+++ b/yardstick/tests/unit/test_cmd/test_NSBperf.py
@@ -11,15 +11,15 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-#
 
-from __future__ import absolute_import
-import unittest
-import mock
-import subprocess
+import argparse
 import os
+import subprocess
+
+import mock
+from six.moves import builtins
+import unittest
 
-from yardstick.cmd.NSBperf import YardstickNSCli
 from yardstick.cmd import NSBperf
 
 
@@ -32,30 +32,39 @@ class TestHandler(unittest.TestCase):
 
 
 class TestYardstickNSCli(unittest.TestCase):
+
+    def setUp(self):
+        self._mock_print = mock.patch.object(builtins, 'print')
+        self.mock_print = self._mock_print.start()
+        self.addCleanup(self._stop_mocks)
+
+    def _stop_mocks(self):
+        self._mock_print.stop()
+
     def test___init__(self):
-        yardstick_ns_cli = YardstickNSCli()
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
         self.assertIsNotNone(yardstick_ns_cli)
 
     def test_generate_final_report(self):
-        yardstick_ns_cli = YardstickNSCli()
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
         test_case = "tc_baremetal_rfc2544_ipv4_1flow_1518B.yaml"
         if os.path.isfile("/tmp/yardstick.out"):
             os.remove('/tmp/yardstick.out')
         self.assertIsNone(yardstick_ns_cli.generate_final_report(test_case))
 
     def test_generate_kpi_results(self):
-        yardstick_ns_cli = YardstickNSCli()
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
         tkey = "cpu"
         tgen = {"cpu": {"ipc": 0}}
         self.assertIsNone(yardstick_ns_cli.generate_kpi_results(tkey, tgen))
 
     def test_generate_nfvi_results(self):
-        yardstick_ns_cli = YardstickNSCli()
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
         nfvi = {"collect_stats": {"cpu": {"ipc": 0, "Hz": 2.6}}}
         self.assertIsNone(yardstick_ns_cli.generate_nfvi_results(nfvi))
 
     def test_handle_list_options(self):
-        yardstick_ns_cli = YardstickNSCli()
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
         CLI_PATH = os.path.dirname(os.path.realpath(__file__))
         repo_dir = CLI_PATH + "/../../../"
         test_path = os.path.join(repo_dir, "../samples/vnf_samples/nsut/")
@@ -68,16 +77,21 @@ class TestYardstickNSCli(unittest.TestCase):
                           args, test_path)
 
     def test_main(self):
-        yardstick_ns_cli = YardstickNSCli()
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
         yardstick_ns_cli.parse_arguments = mock.Mock(return_value=0)
         yardstick_ns_cli.handle_list_options = mock.Mock(return_value=0)
         yardstick_ns_cli.terminate_if_less_options = mock.Mock(return_value=0)
         yardstick_ns_cli.run_test = mock.Mock(return_value=0)
         self.assertIsNone(yardstick_ns_cli.main())
 
-    def test_parse_arguments(self):
-        yardstick_ns_cli = YardstickNSCli()
-        self.assertRaises(SystemExit, yardstick_ns_cli.parse_arguments)
+    @mock.patch.object(argparse.ArgumentParser, 'parse_args')
+    def test_parse_arguments(self, mock_parse):
+        class DummyArgs(object):
+            var1 = 'value1'
+
+        mock_parse.return_value = DummyArgs
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
+        self.assertIn('var1', yardstick_ns_cli.parse_arguments())
 
     def test_run_test(self):
         cur_dir = os.getcwd()
@@ -85,7 +99,7 @@ class TestYardstickNSCli(unittest.TestCase):
         YARDSTICK_REPOS_DIR = os.path.join(CLI_PATH + "/../../")
         test_path = os.path.join(YARDSTICK_REPOS_DIR,
                                  "../samples/vnf_samples/nsut/")
-        yardstick_ns_cli = YardstickNSCli()
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
         subprocess.check_output = mock.Mock(return_value=0)
         args = {"vnf": "vpe",
                 "test": "tc_baremetal_rfc2544_ipv4_1flow_1518B.yaml"}
@@ -103,13 +117,13 @@ class TestYardstickNSCli(unittest.TestCase):
         os.chdir(cur_dir)
 
     def test_terminate_if_less_options(self):
-        yardstick_ns_cli = YardstickNSCli()
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
         args = {"vnf": False}
         self.assertRaises(SystemExit,
                           yardstick_ns_cli.terminate_if_less_options, args)
 
     def test_validate_input(self):
-        yardstick_ns_cli = YardstickNSCli()
+        yardstick_ns_cli = NSBperf.YardstickNSCli()
         self.assertEqual(1, yardstick_ns_cli.validate_input("", 4))
         NSBperf.input = lambda _: 'yes'
         self.assertEqual(1, yardstick_ns_cli.validate_input(5, 4))