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#!/usr/bin/python
# Copyright 2014 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Test OrderedSet.
"""
import sys
import test_variables
import unittest
sys.path.append(test_variables.GYP_GEN_DIR)
from vars_dict_lib import OrderedSet
def create_dummy_var(i):
return 'dummy_var' + str(i)
class OrderedSetTest(unittest.TestCase):
def setUp(self):
self.__set = OrderedSet()
def test_methods(self):
"""
Test methods on OrderedSet.
"""
RANGE = 10
for i in range(RANGE):
dummy_var = create_dummy_var(i)
# Add to the list. This should succeed.
self.__set.add(dummy_var)
self.assertEqual(len(self.__set), i+1)
self.assertTrue(dummy_var in self.__set)
self.assertEqual(self.__set[i], dummy_var)
# Now attempt to add it again. This should fail.
self.__set.add(dummy_var)
self.assertEqual(len(self.__set), i+1)
self.assertEqual(self.__set[i], dummy_var)
# Test iterator.
counter = 0
for set_member in self.__set:
self.assertEqual(create_dummy_var(counter), set_member)
counter += 1
self.assertEqual(counter, len(self.__set))
# Now test removal.
for i in range(RANGE):
dummy_var = create_dummy_var(i)
self.__set.remove(dummy_var)
self.assertEqual(len(self.__set), RANGE-i-1)
self.assertFalse(dummy_var in self.__set)
# Test reset(), for a range of ranges.
for subrange in range(RANGE):
for i in range(subrange):
self.__set.add(create_dummy_var(i))
self.assertEqual(len(self.__set), subrange)
self.__set.reset()
self.assertEqual(len(self.__set), 0)
def main():
loader = unittest.TestLoader()
suite = loader.loadTestsFromTestCase(OrderedSetTest)
unittest.TextTestRunner(verbosity=2).run(suite)
if __name__ == "__main__":
main()
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