1 files changed, 43 insertions, 0 deletions
diff --git a/yarnutils/vars_tests.py b/yarnutils/vars_tests.py
new file mode 100644
index 0000000..a49903e
--- /dev/null
+++ b/yarnutils/vars_tests.py
@@ -0,0 +1,43 @@
+# Copyright 2017  Lars Wirzenius
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# =*= License: GPL-3+ =*=
+
+
+import shutil
+import tempfile
+import unittest
+
+import yarnutils
+
+
+class VariablesTests(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+    def test_unset_variable_is_None(self):
+        vars = yarnutils.Variables(self.tempdir)
+        self.assertEqual(vars['foo'], None)
+
+    def test_set_value_is_persistent(self):
+        vars1 = yarnutils.Variables(self.tempdir)
+        vars1['foo'] = 'bar'
+        vars2 = yarnutils.Variables(self.tempdir)
+        self.assertEqual(vars1['foo'], vars2['foo'])
+        self.assertEqual(vars2['foo'], 'bar')