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#!/usr/bin/python2.4
# Copyright 2007 Google Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
"""Tests for distcc_pump_c_extensions. Writes out doc strings and calls some
distcc rpc functions. Also, the program times the speed-up of using the libc
versions of os.path.realpath and os.path.exists provided by
distcc_pump_c_extensions."""
__author__ = "opensource@google.com"
import sys
import os.path
import time
import traceback
import struct
import random
import distcc_pump_c_extensions
def main():
# Module tempfile doesn't work with distcc. Work-around follows.
random_testdir = ("/tmp/distcc-pump-c-extensions-test-"
+ str(random.random() * time.time()))
# TODO(klarlund): this might be better stated as:
# "/tmp/distcc-pump-c-extensions-test-%s.%s" % (os.getuid(), random.random()))
try:
if os.path.exists(random_testdir):
os.removedirs(random_testdir)
os.mkdir(random_testdir, 0700)
except (IOError, OSError), why:
sys.exit("Unable to create test dir %s: %s." % (random_testdir, why))
random_filename = os.path.join(random_testdir, 'test')
assert not os.path.exists(random_filename), random_filename
def _MakeTempFile(mode):
return open(random_filename, mode)
# Exercise metainformation and documentation strings
assert(distcc_pump_c_extensions.__file__)
assert(distcc_pump_c_extensions.__doc__)
assert(distcc_pump_c_extensions.__author__)
assert(distcc_pump_c_extensions.RTokenString.__doc__)
assert(distcc_pump_c_extensions.RArgv.__doc__)
assert(distcc_pump_c_extensions.XArgv.__doc__)
assert(distcc_pump_c_extensions.OsPathExists.__doc__)
assert(distcc_pump_c_extensions.OsPathIsFile.__doc__)
assert(distcc_pump_c_extensions.Realpath.__doc__)
# RTokenString and RArgv
# Pack something and try sending it
pack = struct.pack
fd = _MakeTempFile('wb')
fd.write("ARGC 2")
fd.write("ARGV 6")
fd.write("tomato")
fd.write("ARGV 7")
fd.write("potatos")
fd.close()
# Now try to read it back with wrong expectations.
fd = _MakeTempFile('rb')
try:
two_string = distcc_pump_c_extensions.RTokenString(fd.fileno(), "XXXX");
sys.exit("internal error 1 - we should not get to here")
except distcc_pump_c_extensions.Error:
pass
# Read it back with appropriate expectations.
fd.seek(0);
two_string = distcc_pump_c_extensions.RTokenString(fd.fileno(), "ARGC");
if two_string != "AR":
raise distcc_pump_c_extensions.error, "internal error 2"
fd.seek(0);
args = distcc_pump_c_extensions.RArgv(fd.fileno())
if args != ["tomato", "potatos"]:
raise distcc_pump_c_extensions.error, "internal error 3"
fd.close()
# XArgv and RArgv
fd = _MakeTempFile('wb')
darth_vader_barney = ["Darth Vader", "Barney"]
args = distcc_pump_c_extensions.XArgv(fd.fileno(), darth_vader_barney)
fd.close()
fd = _MakeTempFile('r')
args = distcc_pump_c_extensions.RArgv(fd.fileno())
if args != darth_vader_barney:
raise distcc_pump_c_extensions.error, "internal error 4"
fd.close()
# Libc functions --- also print out how fast they are compared to
# Python built-ins.
t = time.time()
f = "/"
for i in range(10000):
distcc_pump_c_extensions.OsPathExists(f);
print 'Stat', time.time() - t
t = time.time()
for i in range(10000):
os.path.exists(f);
print 'os.path.exists', time.time() - t
for i in range(10000):
distcc_pump_c_extensions.Realpath(f);
print 'c_realpath', time.time() - t
t = time.time()
for i in range(10000):
os.path.realpath(f);
print 'os.path.realpath', time.time() - t
# TODO(klarlund): this belongs in a try-finally construct.
os.unlink(random_filename)
os.removedirs(random_testdir)
print "Test passed"
# TODO(klarlund): Blind exception handlers are not in style. Just remove this
# try-except clause.
try:
main()
except:
traceback.print_exc()
sys.exit("c_extensions_test.py failed.")
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