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Paul Lambert committed 727221e

Added a bit more doc, first stabs at tests

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Files changed (4)

Binary file modified.

 
 If all goes well, you should be able to run "hg help cedit" and get started!
 
-For a quick tool to set up your initial name and email, run "hg setuser".
+For a quick tool to set up your initial name and email, run "hg setuser".
+
+Note: If you are adding this extension by hand, be sure to give the containing folder
+as the path, not config.py. For example
+
+YES:
+[extensions]
+config = /foo/bar/hgext/cedit
+
+NO:
+[extensions]
+config = /foo/bar/hgext/cedit/config.py
+
+This is to ensure that the included version of iniparse is loaded at the
+same time as this extension. 

tests/run-tests.py

+#!/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 version 2, incorporated herein by reference.
+
+# Modifying this script is tricky because it has many modes:
+#   - serial (default) vs parallel (-jN, N > 1)
+#   - no coverage (default) vs coverage (-c, -C, -s)
+#   - temp install (default) vs specific hg script (--with-hg, --local)
+#   - tests are a mix of shell scripts and Python scripts
+#
+# If you change this script, it is recommended that you ensure you
+# haven't broken it by running it in various modes with a representative
+# sample of test scripts.  For example:
+#
+#  1) serial, no coverage, temp install:
+#      ./run-tests.py test-s*
+#  2) serial, no coverage, local hg:
+#      ./run-tests.py --local test-s*
+#  3) serial, coverage, temp install:
+#      ./run-tests.py -c test-s*
+#  4) serial, coverage, local hg:
+#      ./run-tests.py -c --local test-s*      # unsupported
+#  5) parallel, no coverage, temp install:
+#      ./run-tests.py -j2 test-s*
+#  6) parallel, no coverage, local hg:
+#      ./run-tests.py -j2 --local test-s*
+#  7) parallel, coverage, temp install:
+#      ./run-tests.py -j2 -c test-s*          # currently broken
+#  8) parallel, coverage, local install:
+#      ./run-tests.py -j2 -c --local test-s*  # unsupported (and broken)
+#  9) parallel, custom tmp dir:
+#      ./run-tests.py -j2 --tmpdir /tmp/myhgtests
+#
+# (You could use any subset of the tests: test-s* happens to match
+# enough that it's worth doing parallel runs, few enough that it
+# completes fairly quickly, includes both shell and Python scripts, and
+# includes some scripts that run daemon processes.)
+
+from ConfigParser import ConfigParser
+import difflib
+import errno
+import optparse
+import os
+import subprocess
+import shutil
+import signal
+import sys
+import tempfile
+import time
+
+closefds = os.name == 'posix'
+def Popen4(cmd, bufsize=-1):
+    p = subprocess.Popen(cmd, shell=True, bufsize=bufsize,
+                         close_fds=closefds,
+                         stdin=subprocess.PIPE, stdout=subprocess.PIPE,
+                         stderr=subprocess.STDOUT)
+    p.fromchild = p.stdout
+    p.tochild = p.stdin
+    p.childerr = p.stderr
+    return p
+
+# reserved exit code to skip test (used by hghave)
+SKIPPED_STATUS = 80
+SKIPPED_PREFIX = 'skipped: '
+FAILED_PREFIX  = 'hghave check failed: '
+PYTHON = sys.executable
+
+requiredtools = ["python", "diff", "grep", "unzip", "gunzip", "bunzip2", "sed"]
+
+defaults = {
+    'jobs': ('HGTEST_JOBS', 1),
+    'timeout': ('HGTEST_TIMEOUT', 180),
+    'port': ('HGTEST_PORT', 20059),
+}
+
+def parseargs():
+    parser = optparse.OptionParser("%prog [options] [tests]")
+    parser.add_option("-C", "--annotate", action="store_true",
+        help="output files annotated with coverage")
+    parser.add_option("--child", type="int",
+        help="run as child process, summary to given fd")
+    parser.add_option("-c", "--cover", action="store_true",
+        help="print a test coverage report")
+    parser.add_option("-f", "--first", action="store_true",
+        help="exit on the first test failure")
+    parser.add_option("-i", "--interactive", action="store_true",
+        help="prompt to accept changed output")
+    parser.add_option("-j", "--jobs", type="int",
+        help="number of jobs to run in parallel"
+             " (default: $%s or %d)" % defaults['jobs'])
+    parser.add_option("-k", "--keywords",
+        help="run tests matching keywords")
+    parser.add_option("--keep-tmpdir", action="store_true",
+        help="keep temporary directory after running tests")
+    parser.add_option("--tmpdir", type="string",
+        help="run tests in the given temporary directory"
+             " (implies --keep-tmpdir)")
+    parser.add_option("-d", "--debug", action="store_true",
+        help="debug mode: write output of test scripts to console"
+             " rather than capturing and diff'ing it (disables timeout)")
+    parser.add_option("-R", "--restart", action="store_true",
+        help="restart at last error")
+    parser.add_option("-p", "--port", type="int",
+        help="port on which servers should listen"
+             " (default: $%s or %d)" % defaults['port'])
+    parser.add_option("-r", "--retest", action="store_true",
+        help="retest failed tests")
+    parser.add_option("-s", "--cover_stdlib", action="store_true",
+        help="print a test coverage report inc. standard libraries")
+    parser.add_option("-S", "--noskips", action="store_true",
+        help="don't report skip tests verbosely")
+    parser.add_option("-t", "--timeout", type="int",
+        help="kill errant tests after TIMEOUT seconds"
+             " (default: $%s or %d)" % defaults['timeout'])
+    parser.add_option("-v", "--verbose", action="store_true",
+        help="output verbose messages")
+    parser.add_option("-n", "--nodiff", action="store_true",
+        help="skip showing test changes")
+    parser.add_option("--with-hg", type="string",
+        metavar="HG",
+        help="test using specified hg script rather than a "
+             "temporary installation")
+    parser.add_option("--local", action="store_true",
+        help="shortcut for --with-hg=<testdir>/../hg")
+    parser.add_option("--pure", action="store_true",
+        help="use pure Python code instead of C extensions")
+    parser.add_option("-3", "--py3k-warnings", action="store_true",
+        help="enable Py3k warnings on Python 2.6+")
+    parser.add_option("--inotify", action="store_true",
+        help="enable inotify extension when running tests")
+    parser.add_option("--blacklist", action="append",
+        help="skip tests listed in the specified section of "
+             "the blacklist file")
+
+    for option, default in defaults.items():
+        defaults[option] = int(os.environ.get(*default))
+    parser.set_defaults(**defaults)
+    (options, args) = parser.parse_args()
+
+    if options.with_hg:
+        if not (os.path.isfile(options.with_hg) and
+                os.access(options.with_hg, os.X_OK)):
+            parser.error('--with-hg must specify an executable hg script')
+        if not os.path.basename(options.with_hg) == 'hg':
+            sys.stderr.write('warning: --with-hg should specify an hg script')
+    if options.local:
+        testdir = os.path.dirname(os.path.realpath(sys.argv[0]))
+        hgbin = os.path.join(os.path.dirname(testdir), 'hg')
+        if not os.access(hgbin, os.X_OK):
+            parser.error('--local specified, but %r not found or not executable'
+                         % hgbin)
+        options.with_hg = hgbin
+
+    options.anycoverage = (options.cover or
+                           options.cover_stdlib or
+                           options.annotate)
+
+    if options.anycoverage and options.with_hg:
+        # I'm not sure if this is a fundamental limitation or just a
+        # bug.  But I don't want to waste people's time and energy doing
+        # test runs that don't give the results they want.
+        parser.error("sorry, coverage options do not work when --with-hg "
+                     "or --local specified")
+
+    global vlog
+    if options.verbose:
+        if options.jobs > 1 or options.child is not None:
+            pid = "[%d]" % os.getpid()
+        else:
+            pid = None
+        def vlog(*msg):
+            if pid:
+                print pid,
+            for m in msg:
+                print m,
+            print
+            sys.stdout.flush()
+    else:
+        vlog = lambda *msg: None
+
+    if options.tmpdir:
+        options.tmpdir = os.path.expanduser(options.tmpdir)
+
+    if options.jobs < 1:
+        parser.error('--jobs must be positive')
+    if options.interactive and options.jobs > 1:
+        print '(--interactive overrides --jobs)'
+        options.jobs = 1
+    if options.interactive and options.debug:
+        parser.error("-i/--interactive and -d/--debug are incompatible")
+    if options.debug:
+        if options.timeout != defaults['timeout']:
+            sys.stderr.write(
+                'warning: --timeout option ignored with --debug\n')
+        options.timeout = 0
+    if options.py3k_warnings:
+        if sys.version_info[:2] < (2, 6) or sys.version_info[:2] >= (3, 0):
+            parser.error('--py3k-warnings can only be used on Python 2.6+')
+    if options.blacklist:
+        configparser = ConfigParser()
+        configparser.read("blacklist")
+        blacklist = dict()
+        for section in options.blacklist:
+            for (item, value) in configparser.items(section):
+                blacklist["test-" + item] = section
+        options.blacklist = blacklist
+
+    return (options, args)
+
+def rename(src, dst):
+    """Like os.rename(), trade atomicity and opened files friendliness
+    for existing destination support.
+    """
+    shutil.copy(src, dst)
+    os.remove(src)
+
+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 parsehghaveoutput(lines):
+    '''Parse hghave log lines.
+    Return tuple of lists (missing, failed):
+      * the missing/unknown features
+      * the features for which existence check failed'''
+    missing = []
+    failed = []
+    for line in lines:
+        if line.startswith(SKIPPED_PREFIX):
+            line = line.splitlines()[0]
+            missing.append(line[len(SKIPPED_PREFIX):])
+        elif line.startswith(FAILED_PREFIX):
+            line = line.splitlines()[0]
+            failed.append(line[len(FAILED_PREFIX):])
+
+    return missing, failed
+
+def showdiff(expected, output, ref, err):
+    for line in difflib.unified_diff(expected, output, ref, err):
+        sys.stdout.write(line)
+
+def findprogram(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 checktools():
+    # Before we go any further, check for pre-requisite tools
+    # stuff from coreutils (cat, rm, etc) are not tested
+    for p in requiredtools:
+        if os.name == 'nt':
+            p += '.exe'
+        found = findprogram(p)
+        if found:
+            vlog("# Found prerequisite", p, "at", found)
+        else:
+            print "WARNING: Did not find prerequisite tool: "+p
+
+def cleanup(options):
+    if not options.keep_tmpdir:
+        vlog("# Cleaning up HGTMP", HGTMP)
+        shutil.rmtree(HGTMP, True)
+
+def usecorrectpython():
+    # 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 = findprogram('python')
+        if os.path.dirname(path) == exedir:
+            return
+    vlog('# Making python executable in test path use correct Python')
+    mypython = os.path.join(BINDIR, 'python')
+    try:
+        os.symlink(sys.executable, mypython)
+    except AttributeError:
+        # windows fallback
+        shutil.copyfile(sys.executable, mypython)
+        shutil.copymode(sys.executable, mypython)
+
+def installhg(options):
+    vlog("# Performing temporary installation of HG")
+    installerrs = os.path.join("tests", "install.err")
+    pure = options.pure and "--pure" or ""
+
+    # Run installer in hg root
+    script = os.path.realpath(sys.argv[0])
+    hgroot = os.path.dirname(os.path.dirname(script))
+    os.chdir(hgroot)
+    nohome = '--home=""'
+    if os.name == 'nt':
+        # The --home="" trick works only on OS where os.sep == '/'
+        # because of a distutils convert_path() fast-path. Avoid it at
+        # least on Windows for now, deal with .pydistutils.cfg bugs
+        # when they happen.
+        nohome = ''
+    cmd = ('%s setup.py %s clean --all'
+           ' install --force --prefix="%s" --install-lib="%s"'
+           ' --install-scripts="%s" %s >%s 2>&1'
+           % (sys.executable, pure, INST, PYTHONDIR, BINDIR, nohome,
+              installerrs))
+    vlog("# Running", cmd)
+    if os.system(cmd) == 0:
+        if not options.verbose:
+            os.remove(installerrs)
+    else:
+        f = open(installerrs)
+        for line in f:
+            print line,
+        f.close()
+        sys.exit(1)
+    os.chdir(TESTDIR)
+
+    usecorrectpython()
+
+    vlog("# Installing dummy diffstat")
+    f = open(os.path.join(BINDIR, 'diffstat'), 'w')
+    f.write('#!' + sys.executable + '\n'
+            'import sys\n'
+            'files = 0\n'
+            'for line in sys.stdin:\n'
+            '    if line.startswith("diff "):\n'
+            '        files += 1\n'
+            'sys.stdout.write("files patched: %d\\n" % files)\n')
+    f.close()
+    os.chmod(os.path.join(BINDIR, 'diffstat'), 0700)
+
+    if options.py3k_warnings and not options.anycoverage:
+        vlog("# Updating hg command to enable Py3k Warnings switch")
+        f = open(os.path.join(BINDIR, 'hg'), 'r')
+        lines = [line.rstrip() for line in f]
+        lines[0] += ' -3'
+        f.close()
+        f = open(os.path.join(BINDIR, 'hg'), 'w')
+        for line in lines:
+            f.write(line + '\n')
+        f.close()
+
+    if options.anycoverage:
+        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", "-p", "%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 outputcoverage(options):
+
+    vlog('# Producing coverage report')
+    os.chdir(PYTHONDIR)
+
+    def covrun(*args):
+        start = sys.executable, os.path.join(TESTDIR, 'coverage.py')
+        cmd = '"%s" "%s" %s' % (start[0], start[1], ' '.join(args))
+        vlog('# Running: %s' % cmd)
+        os.system(cmd)
+
+    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)
+
+    covrun('-c') # combine from parallel processes
+    for fn in os.listdir(TESTDIR):
+        if fn.startswith('.coverage.'):
+            os.unlink(os.path.join(TESTDIR, fn))
+
+    covrun('-i', '-r', '"--omit=%s"' % omit) # report
+    if options.annotate:
+        adir = os.path.join(TESTDIR, 'annotated')
+        if not os.path.isdir(adir):
+            os.mkdir(adir)
+        covrun('-i', '-a', '"--directory=%s"' % adir, '"--omit=%s"' % omit)
+
+class Timeout(Exception):
+    pass
+
+def alarmed(signum, frame):
+    raise Timeout
+
+def run(cmd, options):
+    """Run command in a sub-process, capturing the output (stdout and stderr).
+    Return a tuple (exitcode, output).  output is None in debug mode."""
+    # TODO: Use subprocess.Popen if we're running on Python 2.4
+    if options.debug:
+        proc = subprocess.Popen(cmd, shell=True)
+        ret = proc.wait()
+        return (ret, None)
+
+    if os.name == 'nt' or sys.platform.startswith('java'):
+        tochild, fromchild = os.popen4(cmd)
+        tochild.close()
+        output = fromchild.read()
+        ret = fromchild.close()
+        if ret == None:
+            ret = 0
+    else:
+        proc = Popen4(cmd)
+        try:
+            output = ''
+            proc.tochild.close()
+            output = proc.fromchild.read()
+            ret = proc.wait()
+            if os.WIFEXITED(ret):
+                ret = os.WEXITSTATUS(ret)
+        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
+            output += ("\n### Abort: timeout after %d seconds.\n"
+                       % options.timeout)
+    return ret, splitnewlines(output)
+
+def runone(options, test, skips, fails):
+    '''tristate output:
+    None -> skipped
+    True -> passed
+    False -> failed'''
+
+    def skip(msg):
+        if not options.verbose:
+            skips.append((test, msg))
+        else:
+            print "\nSkipping %s: %s" % (testpath, msg)
+        return None
+
+    def fail(msg):
+        fails.append((test, msg))
+        if not options.nodiff:
+            print "\nERROR: %s %s" % (testpath, msg)
+        return None
+
+    vlog("# Test", test)
+
+    # create a fresh hgrc
+    hgrc = open(HGRCPATH, 'w+')
+    hgrc.write('[ui]\n')
+    hgrc.write('slash = True\n')
+    hgrc.write('[defaults]\n')
+    hgrc.write('backout = -d "0 0"\n')
+    hgrc.write('commit = -d "0 0"\n')
+    hgrc.write('tag = -d "0 0"\n')
+    if options.inotify:
+        hgrc.write('[extensions]\n')
+        hgrc.write('inotify=\n')
+        hgrc.write('[inotify]\n')
+        hgrc.write('pidfile=%s\n' % DAEMON_PIDS)
+        hgrc.write('appendpid=True\n')
+    hgrc.close()
+
+    err = os.path.join(TESTDIR, test+".err")
+    ref = os.path.join(TESTDIR, test+".out")
+    testpath = os.path.join(TESTDIR, test)
+
+    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)
+
+    try:
+        tf = open(testpath)
+        firstline = tf.readline().rstrip()
+        tf.close()
+    except:
+        firstline = ''
+    lctest = test.lower()
+
+    if lctest.endswith('.py') or firstline == '#!/usr/bin/env python':
+        py3kswitch = options.py3k_warnings and ' -3' or ''
+        cmd = '%s%s "%s"' % (PYTHON, py3kswitch, testpath)
+    elif lctest.endswith('.bat'):
+        # do not run batch scripts on non-windows
+        if os.name != 'nt':
+            return skip("batch script")
+        # To reliably get the error code from batch files on WinXP,
+        # the "cmd /c call" prefix is needed. Grrr
+        cmd = 'cmd /c call "%s"' % testpath
+    else:
+        # do not run shell scripts on windows
+        if os.name == 'nt':
+            return skip("shell script")
+        # do not try to run non-executable programs
+        if not os.path.exists(testpath):
+            return fail("does not exist")
+        elif not os.access(testpath, os.X_OK):
+            return skip("not executable")
+        cmd = '"%s"' % testpath
+
+    if options.timeout > 0:
+        signal.alarm(options.timeout)
+
+    vlog("# Running", cmd)
+    ret, out = run(cmd, options)
+    vlog("# Ret was:", ret)
+
+    if options.timeout > 0:
+        signal.alarm(0)
+
+    mark = '.'
+
+    skipped = (ret == SKIPPED_STATUS)
+    # If we're not in --debug mode and reference output file exists,
+    # check test output against it.
+    if options.debug:
+        refout = None                   # to match out == None
+    elif os.path.exists(ref):
+        f = open(ref, "r")
+        refout = splitnewlines(f.read())
+        f.close()
+    else:
+        refout = []
+
+    if skipped:
+        mark = 's'
+        if out is None:                 # debug mode: nothing to parse
+            missing = ['unknown']
+            failed = None
+        else:
+            missing, failed = parsehghaveoutput(out)
+        if not missing:
+            missing = ['irrelevant']
+        if failed:
+            fail("hghave failed checking for %s" % failed[-1])
+            skipped = False
+        else:
+            skip(missing[-1])
+    elif out != refout:
+        mark = '!'
+        if ret:
+            fail("output changed and returned error code %d" % ret)
+        else:
+            fail("output changed")
+        if not options.nodiff:
+            showdiff(refout, out, ref, err)
+        ret = 1
+    elif ret:
+        mark = '!'
+        fail("returned error code %d" % ret)
+
+    if not options.verbose:
+        sys.stdout.write(mark)
+        sys.stdout.flush()
+
+    if ret != 0 and not skipped and not options.debug:
+        # 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 = open(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)
+    if not options.keep_tmpdir:
+        shutil.rmtree(tmpd, True)
+    if skipped:
+        return None
+    return ret == 0
+
+_hgpath = None
+
+def _gethgpath():
+    """Return the path to the mercurial package that is actually found by
+    the current Python interpreter."""
+    global _hgpath
+    if _hgpath is not None:
+        return _hgpath
+
+    cmd = '%s -c "import mercurial; print mercurial.__path__[0]"'
+    pipe = os.popen(cmd % PYTHON)
+    try:
+        _hgpath = pipe.read().strip()
+    finally:
+        pipe.close()
+    return _hgpath
+
+def _checkhglib(verb):
+    """Ensure that the 'mercurial' package imported by python is
+    the one we expect it to be.  If not, print a warning to stderr."""
+    expecthg = os.path.join(PYTHONDIR, 'mercurial')
+    actualhg = _gethgpath()
+    if actualhg != expecthg:
+        sys.stderr.write('warning: %s with unexpected mercurial lib: %s\n'
+                         '         (expected %s)\n'
+                         % (verb, actualhg, expecthg))
+
+def runchildren(options, tests):
+    if INST:
+        installhg(options)
+        _checkhglib("Testing")
+
+    optcopy = dict(options.__dict__)
+    optcopy['jobs'] = 1
+    if optcopy['with_hg'] is None:
+        optcopy['with_hg'] = os.path.join(BINDIR, "hg")
+    opts = []
+    for opt, value in optcopy.iteritems():
+        name = '--' + opt.replace('_', '-')
+        if value is True:
+            opts.append(name)
+        elif value is not None:
+            opts.append(name + '=' + str(value))
+
+    tests.reverse()
+    jobs = [[] for j in xrange(options.jobs)]
+    while tests:
+        for job in jobs:
+            if not tests: break
+            job.append(tests.pop())
+    fps = {}
+    for j, job in enumerate(jobs):
+        if not job:
+            continue
+        rfd, wfd = os.pipe()
+        childopts = ['--child=%d' % wfd, '--port=%d' % (options.port + j * 3)]
+        childtmp = os.path.join(HGTMP, 'child%d' % j)
+        childopts += ['--tmpdir', childtmp]
+        cmdline = [PYTHON, sys.argv[0]] + opts + childopts + job
+        vlog(' '.join(cmdline))
+        fps[os.spawnvp(os.P_NOWAIT, cmdline[0], cmdline)] = os.fdopen(rfd, 'r')
+        os.close(wfd)
+    failures = 0
+    tested, skipped, failed = 0, 0, 0
+    skips = []
+    fails = []
+    while fps:
+        pid, status = os.wait()
+        fp = fps.pop(pid)
+        l = fp.read().splitlines()
+        test, skip, fail = map(int, l[:3])
+        split = -fail or len(l)
+        for s in l[3:split]:
+            skips.append(s.split(" ", 1))
+        for s in l[split:]:
+            fails.append(s.split(" ", 1))
+        tested += test
+        skipped += skip
+        failed += fail
+        vlog('pid %d exited, status %d' % (pid, status))
+        failures |= status
+    print
+    if not options.noskips:
+        for s in skips:
+            print "Skipped %s: %s" % (s[0], s[1])
+    for s in fails:
+        print "Failed %s: %s" % (s[0], s[1])
+
+    _checkhglib("Tested")
+    print "# Ran %d tests, %d skipped, %d failed." % (
+        tested, skipped, failed)
+    sys.exit(failures != 0)
+
+def runtests(options, tests):
+    global DAEMON_PIDS, HGRCPATH
+    DAEMON_PIDS = os.environ["DAEMON_PIDS"] = os.path.join(HGTMP, 'daemon.pids')
+    HGRCPATH = os.environ["HGRCPATH"] = os.path.join(HGTMP, '.hgrc')
+
+    try:
+        if INST:
+            installhg(options)
+            _checkhglib("Testing")
+
+        if options.timeout > 0:
+            try:
+                signal.signal(signal.SIGALRM, alarmed)
+                vlog('# Running each test 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 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
+
+        skips = []
+        fails = []
+
+        for test in tests:
+            if options.blacklist:
+                section = options.blacklist.get(test)
+                if section is not None:
+                    skips.append((test, "blacklisted (%s section)" % section))
+                    skipped += 1
+                    continue
+
+            if options.retest and not os.path.exists(test + ".err"):
+                skipped += 1
+                continue
+
+            if options.keywords:
+                t = open(test).read().lower() + test.lower()
+                for k in options.keywords.lower().split():
+                    if k in t:
+                        break
+                else:
+                    skipped +=1
+                    continue
+
+            ret = runone(options, test, skips, fails)
+            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():
+                        rename(test + ".err", test + ".out")
+                        tested += 1
+                        fails.pop()
+                        continue
+                failed += 1
+                if options.first:
+                    break
+            tested += 1
+
+        if options.child:
+            fp = os.fdopen(options.child, 'w')
+            fp.write('%d\n%d\n%d\n' % (tested, skipped, failed))
+            for s in skips:
+                fp.write("%s %s\n" % s)
+            for s in fails:
+                fp.write("%s %s\n" % s)
+            fp.close()
+        else:
+            print
+            for s in skips:
+                print "Skipped %s: %s" % s
+            for s in fails:
+                print "Failed %s: %s" % s
+            _checkhglib("Tested")
+            print "# Ran %d tests, %d skipped, %d failed." % (
+                tested, skipped, failed)
+
+        if options.anycoverage:
+            outputcoverage(options)
+    except KeyboardInterrupt:
+        failed = True
+        print "\ninterrupted!"
+
+    if failed:
+        sys.exit(1)
+
+def main():
+    (options, args) = parseargs()
+    if not options.child:
+        os.umask(022)
+
+        checktools()
+
+    # Reset some environment variables to well-known values so that
+    # the tests produce repeatable output.
+    os.environ['LANG'] = os.environ['LC_ALL'] = os.environ['LANGUAGE'] = 'C'
+    os.environ['TZ'] = 'GMT'
+    os.environ["EMAIL"] = "Foo Bar <foo.bar@example.com>"
+    os.environ['CDPATH'] = ''
+    os.environ['COLUMNS'] = '80'
+    os.environ['http_proxy'] = ''
+
+    global TESTDIR, HGTMP, INST, BINDIR, PYTHONDIR, COVERAGE_FILE
+    TESTDIR = os.environ["TESTDIR"] = os.getcwd()
+    if options.tmpdir:
+        options.keep_tmpdir = True
+        tmpdir = options.tmpdir
+        if os.path.exists(tmpdir):
+            # Meaning of tmpdir has changed since 1.3: we used to create
+            # HGTMP inside tmpdir; now HGTMP is tmpdir.  So fail if
+            # tmpdir already exists.
+            sys.exit("error: temp dir %r already exists" % tmpdir)
+
+            # Automatically removing tmpdir sounds convenient, but could
+            # really annoy anyone in the habit of using "--tmpdir=/tmp"
+            # or "--tmpdir=$HOME".
+            #vlog("# Removing temp dir", tmpdir)
+            #shutil.rmtree(tmpdir)
+        os.makedirs(tmpdir)
+    else:
+        tmpdir = tempfile.mkdtemp('', 'hgtests.')
+    HGTMP = os.environ['HGTMP'] = os.path.realpath(tmpdir)
+    DAEMON_PIDS = None
+    HGRCPATH = None
+
+    os.environ["HGEDITOR"] = sys.executable + ' -c "import sys; sys.exit(0)"'
+    os.environ["HGMERGE"] = "internal:merge"
+    os.environ["HGUSER"]   = "test"
+    os.environ["HGENCODING"] = "ascii"
+    os.environ["HGENCODINGMODE"] = "strict"
+    os.environ["HGPORT"] = str(options.port)
+    os.environ["HGPORT1"] = str(options.port + 1)
+    os.environ["HGPORT2"] = str(options.port + 2)
+
+    if options.with_hg:
+        INST = None
+        BINDIR = os.path.dirname(os.path.realpath(options.with_hg))
+
+        # This looks redundant with how Python initializes sys.path from
+        # the location of the script being executed.  Needed because the
+        # "hg" specified by --with-hg is not the only Python script
+        # executed in the test suite that needs to import 'mercurial'
+        # ... which means it's not really redundant at all.
+        PYTHONDIR = BINDIR
+    else:
+        INST = os.path.join(HGTMP, "install")
+        BINDIR = os.environ["BINDIR"] = os.path.join(INST, "bin")
+        PYTHONDIR = os.path.join(INST, "lib", "python")
+
+    os.environ["BINDIR"] = BINDIR
+    os.environ["PYTHON"] = PYTHON
+
+    if not options.child:
+        path = [BINDIR] + os.environ["PATH"].split(os.pathsep)
+        os.environ["PATH"] = os.pathsep.join(path)
+
+        # Include TESTDIR in PYTHONPATH so that out-of-tree extensions
+        # can run .../tests/run-tests.py test-foo where test-foo
+        # adds an extension to HGRC
+        pypath = [PYTHONDIR, TESTDIR]
+        # We have to augment PYTHONPATH, rather than simply replacing
+        # it, in case external libraries are only available via current
+        # PYTHONPATH.  (In particular, the Subversion bindings on OS X
+        # are in /opt/subversion.)
+        oldpypath = os.environ.get('PYTHONPATH')
+        if oldpypath:
+            pypath.append(oldpypath)
+        os.environ['PYTHONPATH'] = os.pathsep.join(pypath)
+
+    COVERAGE_FILE = os.path.join(TESTDIR, ".coverage")
+
+    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 not tests:
+        print "# Ran 0 tests, 0 skipped, 0 failed."
+        return
+
+    vlog("# Using TESTDIR", TESTDIR)
+    vlog("# Using HGTMP", HGTMP)
+    vlog("# Using PATH", os.environ["PATH"])
+    vlog("# Using PYTHONPATH", os.environ["PYTHONPATH"])
+
+    try:
+        if len(tests) > 1 and options.jobs > 1:
+            runchildren(options, tests)
+        else:
+            runtests(options, tests)
+    finally:
+        cleanup(options)
+
+main()

tests/test-add-cedit

+#!/bin/sh
+
+set -e
+
+# hg cedit -a "alias.latest = log --limit 5" -u
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