Remove several unneeded modules from webkitpy.common.

Tools/Scripts/webkitpy/common/lru_cache_unittest.py

-# Copyright (C) 2011 Google Inc. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
-import unittest
-
-from webkitpy.common import lru_cache
-
-
-class LRUCacheTest(unittest.TestCase):
-
-    def setUp(self):
-        self.lru = lru_cache.LRUCache(3)
-        self.lru['key_1'] = 'item_1'
-        self.lru['key_2'] = 'item_2'
-        self.lru['key_3'] = 'item_3'
-
-        self.lru2 = lru_cache.LRUCache(1)
-        self.lru2['key_1'] = 'item_1'
-
-    def test_items(self):
-        self.assertEqual(set(self.lru.items()), set([('key_1', 'item_1'), ('key_3', 'item_3'), ('key_2', 'item_2')]))
-
-    def test_put(self):
-        self.lru['key_4'] = 'item_4'
-        self.assertEqual(set(self.lru.items()), set([('key_4', 'item_4'), ('key_3', 'item_3'), ('key_2', 'item_2')]))
-
-    def test_update(self):
-        self.lru['key_1']
-        self.lru['key_5'] = 'item_5'
-        self.assertEqual(set(self.lru.items()), set([('key_1', 'item_1'), ('key_3', 'item_3'), ('key_5', 'item_5')]))
-
-    def test_keys(self):
-        self.assertEqual(set(self.lru.keys()), set(['key_1', 'key_2', 'key_3']))
-
-    def test_delete(self):
-        del self.lru['key_1']
-        self.assertFalse('key_1' in self.lru)
-
-    def test_contain(self):
-        self.assertTrue('key_1' in self.lru)
-        self.assertFalse('key_4' in self.lru)
-
-    def test_values(self):
-        self.assertEqual(set(self.lru.values()), set(['item_1', 'item_2', 'item_3']))
-
-    def test_len(self):
-        self.assertEqual(len(self.lru), 3)
-
-    def test_size_one_pop(self):
-        self.lru2['key_2'] = 'item_2'
-        self.assertEqual(self.lru2.keys(), ['key_2'])
-
-    def test_size_one_delete(self):
-        del self.lru2['key_1']
-        self.assertFalse('key_1' in self.lru2)
-
-    def test_pop_error(self):
-        self.assertRaises(KeyError, self.lru2.__getitem__, 'key_2')
-        del self.lru2['key_1']
-        self.assertRaises(KeyError, self.lru2.__getitem__, 'key_2')
-
-    def test_get_middle_item(self):
-        self.lru['key_2']
-        self.lru['key_4'] = 'item_4'
-        self.lru['key_5'] = 'item_5'
-        self.assertEqual(set(self.lru.keys()), set(['key_2', 'key_4', 'key_5']))
-
-    def test_set_again(self):
-        self.lru['key_1'] = 'item_4'
-        self.assertEqual(set(self.lru.items()), set([('key_1', 'item_4'), ('key_3', 'item_3'), ('key_2', 'item_2')]))