blob: a104d15c71cdda739cbe7521ab320b25ef433301 [file] [log] [blame]
#!/usr/bin/env python
#
# Copyright 2007 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""Tests for google.appengine.tools.devappserver2.tee."""
import cStringIO
import unittest
from google.appengine.tools.devappserver2 import tee
class Counter(object):
def __init__(self, limit):
self.__index = 0
self.__limit = limit
def readline(self):
if self.__index < self.__limit:
self.__index += 1
return 'line%d\n' % self.__index
return ''
class TeeTest(unittest.TestCase):
def test_tee(self):
output = cStringIO.StringIO()
tee.Tee._MAX_LINES = 3
t = tee.Tee(Counter(100), output)
t.start()
t.join()
self.assertEqual('line98\nline99\nline100\n', t.get_buf())
expected = ''
for i in range(100):
expected += 'line%d\n' % (i+1)
self.assertEqual(expected, output.getvalue())
if __name__ == '__main__':
unittest.main()