1 #!/usr/bin/env python 2 # 3 # Copyright 2011, Google Inc. 4 # All rights reserved. 5 # 6 # Redistribution and use in source and binary forms, with or without 7 # modification, are permitted provided that the following conditions are 8 # met: 9 # 10 # * Redistributions of source code must retain the above copyright 11 # notice, this list of conditions and the following disclaimer. 12 # * Redistributions in binary form must reproduce the above 13 # copyright notice, this list of conditions and the following disclaimer 14 # in the documentation and/or other materials provided with the 15 # distribution. 16 # * Neither the name of Google Inc. nor the names of its 17 # contributors may be used to endorse or promote products derived from 18 # this software without specific prior written permission. 19 # 20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 32 33 """Tests for memorizingfile module.""" 34 35 36 import StringIO 37 import unittest 38 39 import set_sys_path # Update sys.path to locate mod_pywebsocket module. 40 41 from mod_pywebsocket import memorizingfile 42 43 44 class UtilTest(unittest.TestCase): 45 """A unittest for memorizingfile module.""" 46 47 def check(self, memorizing_file, num_read, expected_list): 48 for unused in range(num_read): 49 memorizing_file.readline() 50 actual_list = memorizing_file.get_memorized_lines() 51 self.assertEqual(len(expected_list), len(actual_list)) 52 for expected, actual in zip(expected_list, actual_list): 53 self.assertEqual(expected, actual) 54 55 def check_with_size(self, memorizing_file, read_size, expected_list): 56 read_list = [] 57 read_line = '' 58 while True: 59 line = memorizing_file.readline(read_size) 60 line_length = len(line) 61 self.assertTrue(line_length <= read_size) 62 if line_length == 0: 63 if read_line != '': 64 read_list.append(read_line) 65 break 66 read_line += line 67 if line[line_length - 1] == '\n': 68 read_list.append(read_line) 69 read_line = '' 70 actual_list = memorizing_file.get_memorized_lines() 71 self.assertEqual(len(expected_list), len(actual_list)) 72 self.assertEqual(len(expected_list), len(read_list)) 73 for expected, actual, read in zip(expected_list, actual_list, 74 read_list): 75 self.assertEqual(expected, actual) 76 self.assertEqual(expected, read) 77 78 def test_get_memorized_lines(self): 79 memorizing_file = memorizingfile.MemorizingFile(StringIO.StringIO( 80 'Hello\nWorld\nWelcome')) 81 self.check(memorizing_file, 3, ['Hello\n', 'World\n', 'Welcome']) 82 83 def test_get_memorized_lines_limit_memorized_lines(self): 84 memorizing_file = memorizingfile.MemorizingFile(StringIO.StringIO( 85 'Hello\nWorld\nWelcome'), 2) 86 self.check(memorizing_file, 3, ['Hello\n', 'World\n']) 87 88 def test_get_memorized_lines_empty_file(self): 89 memorizing_file = memorizingfile.MemorizingFile(StringIO.StringIO( 90 '')) 91 self.check(memorizing_file, 10, []) 92 93 def test_get_memorized_lines_with_size(self): 94 for size in range(1, 10): 95 memorizing_file = memorizingfile.MemorizingFile(StringIO.StringIO( 96 'Hello\nWorld\nWelcome')) 97 self.check_with_size(memorizing_file, size, 98 ['Hello\n', 'World\n', 'Welcome']) 99 100 if __name__ == '__main__': 101 unittest.main() 102 103 104 # vi:sts=4 sw=4 et 105