#!/usr/bin/env python
#
# run-tests.py - Run a set of tests on Mercurial
#
# Copyright 2006 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.
import difflib
import errno
import optparse
import os
import popen2
import re
import shutil
import signal
import sys
import tempfile
import time
required_tools = ["python", "diff", "grep", "unzip", "gunzip", "bunzip2", "sed", "merge"]
parser = optparse.OptionParser("%prog [options] [tests]")
parser.add_option("-v", "--verbose", action="store_true",
help="output verbose messages")
parser.add_option("-t", "--timeout", type="int",
help="kill errant tests after TIMEOUT seconds")
parser.add_option("-c", "--cover", action="store_true",
help="print a test coverage report")
parser.add_option("-s", "--cover_stdlib", action="store_true",
help="print a test coverage report inc. standard libraries")
parser.add_option("-C", "--annotate", action="store_true",
help="output files annotated with coverage")
parser.add_option("-r", "--retest", action="store_true",
help="retest failed tests")
parser.add_option("-f", "--first", action="store_true",
help="exit on the first test failure")
parser.add_option("-R", "--restart", action="store_true",
help="restart at last error")
parser.add_option("-i", "--interactive", action="store_true",
help="prompt to accept changed output")
parser.set_defaults(timeout=180)
(options, args) = parser.parse_args()
verbose = options.verbose
coverage = options.cover or options.cover_stdlib or options.annotate
def vlog(*msg):
if verbose:
for m in msg:
print m,
print
def splitnewlines(text):
'''like str.splitlines, but only split on newlines.
keep line endings.'''
i = 0
lines = []
while True:
n = text.find('\n', i)
if n == -1:
last = text[i:]
if last:
lines.append(last)
return lines
lines.append(text[i:n+1])
i = n + 1
def show_diff(expected, output):
for line in difflib.unified_diff(expected, output,
"Expected output", "Test output"):
sys.stdout.write(line)
def find_program(program):
"""Search PATH for a executable program"""
for p in os.environ.get('PATH', os.defpath).split(os.pathsep):
name = os.path.join(p, program)
if os.access(name, os.X_OK):
return name
return None
def check_required_tools():
# Before we go any further, check for pre-requisite tools
# stuff from coreutils (cat, rm, etc) are not tested
for p in required_tools:
if os.name == 'nt':
p += '.exe'
found = find_program(p)
if found:
vlog("# Found prerequisite", p, "at", found)
else:
print "WARNING: Did not find prerequisite tool: "+p
def cleanup_exit():
if verbose:
print "# Cleaning up HGTMP", HGTMP
shutil.rmtree(HGTMP, True)
def use_correct_python():
# some tests run python interpreter. they must use same
# interpreter we use or bad things will happen.
exedir, exename = os.path.split(sys.executable)
if exename == 'python':
path = find_program('python')
if os.path.dirname(path) == exedir:
return
vlog('# Making python executable in test path use correct Python')
my_python = os.path.join(BINDIR, 'python')
try:
os.symlink(sys.executable, my_python)
except AttributeError:
# windows fallback
shutil.copyfile(sys.executable, my_python)
shutil.copymode(sys.executable, my_python)
def install_hg():
vlog("# Performing temporary installation of HG")
installerrs = os.path.join("tests", "install.err")
os.chdir("..") # Get back to hg root
cmd = ('%s setup.py clean --all'
' install --force --home="%s" --install-lib="%s" >%s 2>&1'
% (sys.executable, INST, PYTHONDIR, installerrs))
vlog("# Running", cmd)
if os.system(cmd) == 0:
if not verbose:
os.remove(installerrs)
else:
f = open(installerrs)
for line in f:
print line,
f.close()
sys.exit(1)
os.chdir(TESTDIR)
os.environ["PATH"] = "%s%s%s" % (BINDIR, os.pathsep, os.environ["PATH"])
os.environ["PYTHONPATH"] = PYTHONDIR
use_correct_python()
if coverage:
vlog("# Installing coverage wrapper")
os.environ['COVERAGE_FILE'] = COVERAGE_FILE
if os.path.exists(COVERAGE_FILE):
os.unlink(COVERAGE_FILE)
# Create a wrapper script to invoke hg via coverage.py
os.rename(os.path.join(BINDIR, "hg"), os.path.join(BINDIR, "_hg.py"))
f = open(os.path.join(BINDIR, 'hg'), 'w')
f.write('#!' + sys.executable + '\n')
f.write('import sys, os; os.execv(sys.executable, [sys.executable, '+ \
'"%s", "-x", "%s"] + sys.argv[1:])\n' % (
os.path.join(TESTDIR, 'coverage.py'),
os.path.join(BINDIR, '_hg.py')))
f.close()
os.chmod(os.path.join(BINDIR, 'hg'), 0700)
def output_coverage():
vlog("# Producing coverage report")
omit = [BINDIR, TESTDIR, PYTHONDIR]
if not options.cover_stdlib:
# Exclude as system paths (ignoring empty strings seen on win)
omit += [x for x in sys.path if x != '']
omit = ','.join(omit)
os.chdir(PYTHONDIR)
cmd = '"%s" "%s" -r "--omit=%s"' % (
sys.executable, os.path.join(TESTDIR, 'coverage.py'), omit)
vlog("# Running: "+cmd)
os.system(cmd)
if options.annotate:
adir = os.path.join(TESTDIR, 'annotated')
if not os.path.isdir(adir):
os.mkdir(adir)
cmd = '"%s" "%s" -a "--directory=%s" "--omit=%s"' % (
sys.executable, os.path.join(TESTDIR, 'coverage.py'),
adir, omit)
vlog("# Running: "+cmd)
os.system(cmd)
class Timeout(Exception):
pass
def alarmed(signum, frame):
raise Timeout
def run(cmd):
"""Run command in a sub-process, capturing the output (stdout and stderr).
Return the exist code, and output."""
# TODO: Use subprocess.Popen if we're running on Python 2.4
if os.name == 'nt':
tochild, fromchild = os.popen4(cmd)
tochild.close()
output = fromchild.read()
ret = fromchild.close()
if ret == None:
ret = 0
else:
proc = popen2.Popen4(cmd)
try:
output = ''
proc.tochild.close()
output = proc.fromchild.read()
ret = proc.wait()
except Timeout:
vlog('# Process %d timed out - killing it' % proc.pid)
os.kill(proc.pid, signal.SIGTERM)
ret = proc.wait()
if ret == 0:
ret = signal.SIGTERM << 8
return ret, splitnewlines(output)
def run_one(test):
'''tristate output:
None -> skipped
True -> passed
False -> failed'''
vlog("# Test", test)
if not verbose:
sys.stdout.write('.')
sys.stdout.flush()
# create a fresh hgrc
hgrc = file(HGRCPATH, 'w+')
hgrc.close()
err = os.path.join(TESTDIR, test+".err")
ref = os.path.join(TESTDIR, test+".out")
if os.path.exists(err):
os.remove(err) # Remove any previous output files
# Make a tmp subdirectory to work in
tmpd = os.path.join(HGTMP, test)
os.mkdir(tmpd)
os.chdir(tmpd)
lctest = test.lower()
if lctest.endswith('.py'):
cmd = '%s "%s"' % (sys.executable, os.path.join(TESTDIR, test))
elif lctest.endswith('.bat'):
# do not run batch scripts on non-windows
if os.name != 'nt':
print '\nSkipping %s: batch script' % test
return None
# To reliably get the error code from batch files on WinXP,
# the "cmd /c call" prefix is needed. Grrr
cmd = 'cmd /c call "%s"' % (os.path.join(TESTDIR, test))
else:
# do not run shell scripts on windows
if os.name == 'nt':
print '\nSkipping %s: shell script' % test
return None
# do not try to run non-executable programs
if not os.access(os.path.join(TESTDIR, test), os.X_OK):
print '\nSkipping %s: not executable' % test
return None
cmd = '"%s"' % (os.path.join(TESTDIR, test))
if options.timeout > 0:
signal.alarm(options.timeout)
vlog("# Running", cmd)
ret, out = run(cmd)
vlog("# Ret was:", ret)
if options.timeout > 0:
signal.alarm(0)
diffret = 0
# If reference output file exists, check test output against it
if os.path.exists(ref):
f = open(ref, "r")
ref_out = splitnewlines(f.read())
f.close()
else:
ref_out = []
if out != ref_out:
diffret = 1
print "\nERROR: %s output changed" % (test)
show_diff(ref_out, out)
if ret:
print "\nERROR: %s failed with error code %d" % (test, ret)
elif diffret:
ret = diffret
if ret != 0: # Save errors to a file for diagnosis
f = open(err, "wb")
for line in out:
f.write(line)
f.close()
# Kill off any leftover daemon processes
try:
fp = file(DAEMON_PIDS)
for line in fp:
try:
pid = int(line)
except ValueError:
continue
try:
os.kill(pid, 0)
vlog('# Killing daemon process %d' % pid)
os.kill(pid, signal.SIGTERM)
time.sleep(0.25)
os.kill(pid, 0)
vlog('# Daemon process %d is stuck - really killing it' % pid)
os.kill(pid, signal.SIGKILL)
except OSError, err:
if err.errno != errno.ESRCH:
raise
fp.close()
os.unlink(DAEMON_PIDS)
except IOError:
pass
os.chdir(TESTDIR)
shutil.rmtree(tmpd, True)
return ret == 0
os.umask(022)
check_required_tools()
# Reset some environment variables to well-known values so that
# the tests produce repeatable output.
os.environ['LANG'] = os.environ['LC_ALL'] = 'C'
os.environ['TZ'] = 'GMT'
os.environ["HGEDITOR"] = sys.executable + ' -c "import sys; sys.exit(0)"'
os.environ["HGMERGE"] = sys.executable + ' -c "import sys; sys.exit(0)"'
os.environ["HGUSER"] = "test"
os.environ["HGENCODING"] = "ascii"
os.environ["HGENCODINGMODE"] = "strict"
TESTDIR = os.environ["TESTDIR"] = os.getcwd()
HGTMP = os.environ["HGTMP"] = tempfile.mkdtemp("", "hgtests.")
DAEMON_PIDS = os.environ["DAEMON_PIDS"] = os.path.join(HGTMP, 'daemon.pids')
HGRCPATH = os.environ["HGRCPATH"] = os.path.join(HGTMP, '.hgrc')
vlog("# Using TESTDIR", TESTDIR)
vlog("# Using HGTMP", HGTMP)
INST = os.path.join(HGTMP, "install")
BINDIR = os.path.join(INST, "bin")
PYTHONDIR = os.path.join(INST, "lib", "python")
COVERAGE_FILE = os.path.join(TESTDIR, ".coverage")
try:
try:
install_hg()
if options.timeout > 0:
try:
signal.signal(signal.SIGALRM, alarmed)
vlog('# Running tests with %d-second timeout' %
options.timeout)
except AttributeError:
print 'WARNING: cannot run tests with timeouts'
options.timeout = 0
tested = 0
failed = 0
skipped = 0
if len(args) == 0:
args = os.listdir(".")
args.sort()
tests = []
for test in args:
if (test.startswith("test-") and '~' not in test and
('.' not in test or test.endswith('.py') or
test.endswith('.bat'))):
tests.append(test)
if options.restart:
orig = list(tests)
while tests:
if os.path.exists(tests[0] + ".err"):
break
tests.pop(0)
if not tests:
print "running all tests"
tests = orig
for test in tests:
if options.retest and not os.path.exists(test + ".err"):
skipped += 1
continue
ret = run_one(test)
if ret is None:
skipped += 1
elif not ret:
if options.interactive:
print "Accept this change? [n] ",
answer = sys.stdin.readline().strip()
if answer.lower() in "y yes".split():
os.rename(test + ".err", test + ".out")
tested += 1
continue
failed += 1
if options.first:
break
tested += 1
print "\n# Ran %d tests, %d skipped, %d failed." % (tested, skipped,
failed)
if coverage:
output_coverage()
except KeyboardInterrupt:
failed = True
print "\ninterrupted!"
finally:
cleanup_exit()
if failed:
sys.exit(1)