1 files changed, 72 insertions, 0 deletions
diff --git a/tests/unittests/test_vmware/test_guestcust_util.py b/tests/unittests/test_vmware/test_guestcust_util.py
new file mode 100644
index 00000000..b175a998
--- /dev/null
+++ b/tests/unittests/test_vmware/test_guestcust_util.py
@@ -0,0 +1,72 @@
+# Copyright (C) 2019 Canonical Ltd.
+# Copyright (C) 2019 VMware INC.
+#
+# Author: Xiaofeng Wang <xiaofengw@vmware.com>
+#
+# This file is part of cloud-init. See LICENSE file for license information.
+
+from cloudinit import util
+from cloudinit.sources.helpers.vmware.imc.guestcust_util import (
+    get_tools_config,
+)
+from cloudinit.tests.helpers import CiTestCase, mock
+
+
+class TestGuestCustUtil(CiTestCase):
+    def test_get_tools_config_not_installed(self):
+        """
+        This test is designed to verify the behavior if vmware-toolbox-cmd
+        is not installed.
+        """
+        with mock.patch.object(util, 'which', return_value=None):
+            self.assertEqual(
+                get_tools_config('section', 'key', 'defaultVal'), 'defaultVal')
+
+    def test_get_tools_config_internal_exception(self):
+        """
+        This test is designed to verify the behavior if internal exception
+        is raised.
+        """
+        with mock.patch.object(util, 'which', return_value='/dummy/path'):
+            with mock.patch.object(util, 'subp',
+                                   return_value=('key=value', b''),
+                                   side_effect=util.ProcessExecutionError(
+                                       "subp failed", exit_code=99)):
+                # verify return value is 'defaultVal', not 'value'.
+                self.assertEqual(
+                    get_tools_config('section', 'key', 'defaultVal'),
+                    'defaultVal')
+
+    def test_get_tools_config_normal(self):
+        """
+        This test is designed to verify the value could be parsed from
+        key = value of the given [section]
+        """
+        with mock.patch.object(util, 'which', return_value='/dummy/path'):
+            # value is not blank
+            with mock.patch.object(util, 'subp',
+                                   return_value=('key =   value  ', b'')):
+                self.assertEqual(
+                    get_tools_config('section', 'key', 'defaultVal'),
+                    'value')
+            # value is blank
+            with mock.patch.object(util, 'subp',
+                                   return_value=('key = ', b'')):
+                self.assertEqual(
+                    get_tools_config('section', 'key', 'defaultVal'),
+                    '')
+            # value contains =
+            with mock.patch.object(util, 'subp',
+                                   return_value=('key=Bar=Wark', b'')):
+                self.assertEqual(
+                    get_tools_config('section', 'key', 'defaultVal'),
+                    'Bar=Wark')
+
+            # value contains specific characters
+            with mock.patch.object(util, 'subp',
+                                   return_value=('[a] b.c_d=e-f', b'')):
+                self.assertEqual(
+                    get_tools_config('section', 'key', 'defaultVal'),
+                    'e-f')
+
+# vi: ts=4 expandtab