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test_profile.py
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test_profile.py
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# Copyright (c) 2002-2011 IronPort Systems and Cisco Systems
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
"""Unittests for coro profiler."""
import cStringIO
import os
import sys
import unittest
import coro
import coro.profiler
import coro.print_profile
import coro_unittest
# Sam's favorite profile function.
def tak1 (x,y,z):
coro.yield_slice()
if y >= x:
return z
else:
return tak1 (
tak1 (x-1, y, z),
tak2 (y-1, z, x),
tak2 (z-1, x, y)
)
def tak2 (x,y,z):
coro.yield_slice()
if y >= x:
return z
else:
return tak2 (
tak2 (x-1, y, z),
tak1 (y-1, z, x),
tak1 (z-1, x, y)
)
def multi_test():
t1 = coro.spawn(tak2, 18, 12, 6)
t2 = coro.spawn(tak2, 18, 12, 6)
t3 = coro.spawn(tak2, 18, 12, 6)
t1.join()
t2.join()
t3.join()
class Test(unittest.TestCase):
def test_profile(self):
prof_filename = 'test_profile.bin'
# Mainly this just checks that it doesn't raise any exceptions.
try:
coro.profiler.go(multi_test, profile_filename=prof_filename)
output = cStringIO.StringIO()
real_stdout = sys.stdout
sys.stdout = output
try:
coro.print_profile.main(prof_filename)
finally:
sys.stdout = real_stdout
finally:
if os.path.exists(prof_filename):
os.unlink(prof_filename)
if __name__ == '__main__':
coro_unittest.run_tests()