add test_utils.py

Change-Id: Ic101a648627c69aab04177474b690b966cb4aae2

freezer/tests/unit/scheduler/test_utils.py

@@ -0,0 +1,93 @@
+# (c) Copyright 2019 ZTE Corporation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# 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.
+import os
+import shutil
+import sys
+import tempfile
+import unittest
+
+import mock
+from mock import patch
+
+from freezer.scheduler import utils
+
+job_list = [{"job_id": "test"}]
+
+
+class TestUtils(unittest.TestCase):
+    def setUp(self):
+        self.client = mock.Mock()
+        self.client.clients.create = mock.Mock(return_value='test')
+        self.client.jobs.list = mock.Mock(return_value=job_list)
+        self.client.client_id = "test"
+
+    def test_do_register(self):
+        ret = utils.do_register(self.client, args=None)
+        self.assertEqual(0, ret)
+
+    def test_find_config_files(self):
+        temp = tempfile.NamedTemporaryFile('wb', delete=True,
+                                           suffix='.conf')
+        ret = utils.find_config_files(temp.name)
+        self.assertEqual([temp.name], ret)
+        temp.close()
+        self.assertFalse(os.path.exists(temp.name))
+
+    @unittest.skipIf(sys.version_info.major == 3,
+                     'Not supported on python v 3.x')
+    def test_find_config_files_path(self):
+        temp = tempfile.NamedTemporaryFile('wb', delete=True,
+                                           suffix='.conf')
+        temp_path = os.path.dirname(temp.name)
+        ret = utils.find_config_files(temp_path)
+        self.assertEqual([temp.name], ret)
+        temp.close()
+        self.assertFalse(os.path.exists(temp.name))
+
+    @unittest.skipIf(sys.version_info.major == 3,
+                     'Not supported on python v 3.x')
+    def test_get_jobs_from_disk(self):
+        temp = tempfile.mkdtemp()
+        file = '/'.join([temp, "test.conf"])
+        data = '{"job_id": "test"}'
+        with open(file, 'wb') as f:
+            f.write(data)
+        ret = utils.get_jobs_from_disk(temp)
+        self.assertEqual(job_list, ret)
+        shutil.rmtree(temp)
+        self.assertFalse(os.path.exists(file))
+
+    def test_save_jobs_to_disk(self):
+        job_doc_list = job_list
+        tmpdir = tempfile.mkdtemp()
+        utils.save_jobs_to_disk(job_doc_list, tmpdir)
+        file = '/'.join([tmpdir, "job_test.conf"])
+        self.assertTrue(os.path.exists(file))
+        shutil.rmtree(tmpdir)
+
+    def test_get_active_jobs_from_api(self):
+        ret = utils.get_active_jobs_from_api(self.client)
+        self.assertEqual(job_list, ret)
+
+    @patch('psutil.Process')
+    def test_terminate_subprocess(self, mock_process_constructor):
+        mock_pro = mock_process_constructor.return_value
+        seffect = mock.Mock(
+            side_effect=Exception('Process 35 does not exists anymore'))
+        mock_pro.raiseError.side_effect = seffect
+        with self.assertRaises(Exception) as cm:  # noqa
+            utils.terminate_subprocess(35, "test")
+            the_exception = cm.exception
+            self.assertIn('does not exists anymore',
+                          str(the_exception))