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-rw-r--r--tests/test_memoize.py76
1 files changed, 76 insertions, 0 deletions
diff --git a/tests/test_memoize.py b/tests/test_memoize.py
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+++ b/tests/test_memoize.py
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+# -*- coding: utf-8 -*-
+# test_check.py
+# Copyright (C) 2013 LEAP
+#
+# 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/>.
+"""
+Tests for:
+ * leap/common/decorators._memoized
+"""
+try:
+ import unittest2 as unittest
+except ImportError:
+ import unittest
+
+from time import sleep
+
+import mock
+
+from leap.common.decorators import _memoized
+
+
+class MemoizeTests(unittest.TestCase):
+
+ def test_memoized_call(self):
+ """
+ Test that a memoized function only calls once.
+ """
+ witness = mock.Mock()
+
+ @_memoized
+ def callmebaby():
+ return witness()
+
+ for i in range(10):
+ callmebaby()
+ witness.assert_called_once_with()
+
+ def test_cache_invalidation(self):
+ """
+ Test that time makes the cache invalidation expire.
+ """
+ witness = mock.Mock()
+
+ cache_with_alzheimer = _memoized
+ cache_with_alzheimer.CACHE_INVALIDATION_DELTA = 1
+
+ @cache_with_alzheimer
+ def callmebaby(*args):
+ return witness(*args)
+
+ for i in range(10):
+ callmebaby()
+ witness.assert_called_once_with()
+
+ sleep(2)
+ callmebaby("onemoretime")
+
+ expected = [mock.call(), mock.call("onemoretime")]
+ self.assertEqual(
+ witness.call_args_list,
+ expected)
+
+
+if __name__ == "__main__":
+ unittest.main()