Fix up tests for Parser scenario

* Check the results at the test methods
* Remove print statement from Parser scenario
* Replace assertEquals(x, True) with assertTrue(x)

Change-Id: I5c2612692e625fc888c7ce7637b9e1625440724a
Signed-off-by: Emma Foley <emma.l.foley@intel.com>

1 files changed, 42 insertions, 25 deletions

diff --git a/tests/unit/benchmark/scenarios/parser/test_parser.py b/tests/unit/benchmark/scenarios/parser/test_parser.py
index 014d724a5..ee2bbc07d 100644
--- a/tests/unit/benchmark/scenarios/parser/test_parser.py
+++ b/tests/unit/benchmark/scenarios/parser/test_parser.py
@@ -9,50 +9,67 @@
 # http://www.apache.org/licenses/LICENSE-2.0
 ##############################################################################
 
-# Unittest for yardstick.benchmark.scenarios.parser.Parser
-
-from __future__ import absolute_import
+import subprocess
 
 import unittest
-
 import mock
+
 from oslo_serialization import jsonutils
 
 from yardstick.benchmark.scenarios.parser import parser
 
 
-@mock.patch('yardstick.benchmark.scenarios.parser.parser.subprocess')
 class ParserTestCase(unittest.TestCase):
 
     def setUp(self):
-        pass
-
-    def test_parser_successful_setup(self, mock_subprocess):
-
-        p = parser.Parser({}, {})
-        mock_subprocess.call().return_value = 0
-        p.setup()
-        self.assertTrue(p.setup_done)
-
-    def test_parser_successful(self, mock_subprocess):
         args = {
             'options': {'yangfile': '/root/yardstick/samples/yang.yaml',
                         'toscafile': '/root/yardstick/samples/tosca.yaml'},
         }
-        p = parser.Parser(args, {})
+        self.scenario = parser.Parser(scenario_cfg=args, context_cfg={})
+
+        self._mock_popen = mock.patch.object(subprocess, 'Popen')
+        self.mock_popen = self._mock_popen.start()
+        self._mock_call = mock.patch.object(subprocess, 'call')
+        self.mock_call = self._mock_call.start()
+
+        self.addCleanup(self._stop_mock)
+
+    def _stop_mock(self):
+        self._mock_popen.stop()
+        self._mock_call.stop()
+
+    def test_setup_successful(self):
+
+        self.mock_call.return_value = 0
+        self.scenario.setup()
+        self.assertTrue(self.scenario.setup_done)
+
+    def test_run_successful(self):
+
         result = {}
-        mock_subprocess.call().return_value = 0
-        sample_output = '{"yangtotosca": "success"}'
 
-        p.run(result)
-        expected_result = jsonutils.loads(sample_output)  # pylint: disable=unused-variable
+        self.mock_popen().returncode = 0
+
+        expected_result = jsonutils.loads('{"yangtotosca": "success"}')
+
+        self.scenario.run(result)
+        self.assertEqual(result, expected_result)
+
+    def test_run_fail(self):
+        result = {}
+
+        self.mock_popen().returncode = 1
+        expected_result = jsonutils.loads('{"yangtotosca": "fail"}')
+
+        self.scenario.run(result)
+        self.assertEqual(result, expected_result)
 
-    def test_parser_teardown_successful(self, mock_subprocess):
+    def test_teardown_successful(self):
 
-        p = parser.Parser({}, {})
-        mock_subprocess.call().return_value = 0
-        p.teardown()
-        self.assertTrue(p.teardown_done)
+        self.mock_call.return_value = 0
+        self.scenario.teardown()
+        self.assertTrue(self.scenario.teardown_done)
 
 
 def main():