Python mozprofile.Preferences类代码示例

    def load_prefs(self):
        prefs_path = os.path.join(self.prefs_root, "prefs_general.js")
        if os.path.exists(prefs_path):
            preferences = Preferences.read_prefs(prefs_path)
        else:
            self.logger.warning("Failed to find base prefs file in %s" % prefs_path)
            preferences = []

        return preferences

    def build_profile(self, options):
        # preferences
        prefs = {}
        for path in self.preferences:
            prefs.update(Preferences.read_prefs(path))

        for v in options.extraPrefs:
            thispref = v.split("=", 1)
            if len(thispref) < 2:
                print "Error: syntax error in --setpref=" + v
                sys.exit(1)
            prefs[thispref[0]] = thispref[1]

        # interpolate the preferences
        interpolation = {
            "server": "%s:%s" %
            (options.webServer,
             options.httpPort),
            "OOP": "true" if self.out_of_process else "false"}
        prefs = json.loads(json.dumps(prefs) % interpolation)
        for pref in prefs:
            prefs[pref] = Preferences.cast(prefs[pref])

        kwargs = {
            'addons': self.getExtensionsToInstall(options),
            'apps': self.webapps,
            'locations': self.locations_file,
            'preferences': prefs,
            'proxy': {"remote": options.webServer}
        }

        if options.profile:
            self.profile = Profile.clone(options.profile, **kwargs)
        else:
            self.profile = Profile(**kwargs)

        options.profilePath = self.profile.profile
        # TODO bug 839108 - mozprofile should probably handle this
        manifest = self.addChromeToProfile(options)
        self.copyExtraFilesToProfile(options)
        return manifest

    def load_prefs(self):
        prefs = Preferences()

        pref_paths = []
        prefs_general = os.path.join(self.prefs_root, 'prefs_general.js')
        if os.path.isfile(prefs_general):
            # Old preference file used in Firefox 60 and earlier (remove when no longer supported)
            pref_paths.append(prefs_general)

        profiles = os.path.join(self.prefs_root, 'profiles.json')
        if os.path.isfile(profiles):
            with open(profiles, 'r') as fh:
                for name in json.load(fh)['web-platform-tests']:
                    pref_paths.append(os.path.join(self.prefs_root, name, 'user.js'))

        for path in pref_paths:
            if os.path.exists(path):
                prefs.add(Preferences.read_prefs(path))
            else:
                self.logger.warning("Failed to find base prefs file in %s" % path)

        # Add any custom preferences
        prefs.add(self.extra_prefs, cast=True)

        return prefs()

    def load_prefs(self):
        prefs = Preferences()

        pref_paths = []

        profiles = os.path.join(self.prefs_root, 'profiles.json')
        if os.path.isfile(profiles):
            with open(profiles, 'r') as fh:
                for name in json.load(fh)['web-platform-tests']:
                    if self.browser_channel in (None, 'nightly'):
                        pref_paths.append(os.path.join(self.prefs_root, name, 'user.js'))
                    elif name != 'unittest-features':
                        pref_paths.append(os.path.join(self.prefs_root, name, 'user.js'))
        else:
            # Old preference files used before the creation of profiles.json (remove when no longer supported)
            legacy_pref_paths = (
                os.path.join(self.prefs_root, 'prefs_general.js'),   # Used in Firefox 60 and below
                os.path.join(self.prefs_root, 'common', 'user.js'),  # Used in Firefox 61
            )
            for path in legacy_pref_paths:
                if os.path.isfile(path):
                    pref_paths.append(path)

        for path in pref_paths:
            if os.path.exists(path):
                prefs.add(Preferences.read_prefs(path))
            else:
                self.logger.warning("Failed to find base prefs file in %s" % path)

        # Add any custom preferences
        prefs.add(self.extra_prefs, cast=True)

        return prefs()

def create_mozprofile(profile_dir, application=None, test_type=None, env=None):
    # Ensure that the base `_temp/profiles/` directory exists before trying to
    # create a nested directory.
    if not os.path.exists(BASE_PROFILE_DIR):
        os.mkdir(BASE_PROFILE_DIR)

    if not profile_dir:
        full_profile_dir = mkdtemp(
            dir=BASE_PROFILE_DIR,
            prefix="fftool.",
            suffix=""
        )

    else:
        full_profile_dir = os.path.join(BASE_PROFILE_DIR, profile_dir)

        if os.path.exists(full_profile_dir):
            msg = "WARNING: Profile '{0}' already exists. Merging configs."
            Log.header(msg.format(full_profile_dir), 'XL', '-')

    prefs = Preferences()

    for path in prefs_paths(application, test_type, env):
        prefs.add_file(path)

    # Add the `fftool.profile.name` pref so we can go to about:config and see
    # what our current profile is.
    prefs.add([("fftool.profile.name", full_profile_dir)])

    profile = Profile(
        profile=full_profile_dir, restore=False, preferences=prefs())

    Log.header("Launching browser with the following user configs:")
    print(profile.summary())

    # this is the path to the created profile
    return full_profile_dir

    def load_prefs(self):
        prefs = Preferences()

        prefs_path = os.path.join(self.prefs_root, "prefs_general.js")
        if os.path.exists(prefs_path):
            prefs.add(Preferences.read_prefs(prefs_path))
        else:
            self.logger.warning("Failed to find base prefs file in %s" % prefs_path)

        # Add any custom preferences
        prefs.add(self.extra_prefs, cast=True)

        return prefs()

    def valgrind_test(self, suppressions):
        import json
        import sys
        import tempfile

        from mozbuild.base import MozbuildObject
        from mozfile import TemporaryDirectory
        from mozhttpd import MozHttpd
        from mozprofile import FirefoxProfile, Preferences
        from mozprofile.permissions import ServerLocations
        from mozrunner import FirefoxRunner
        from mozrunner.utils import findInPath
        from valgrind.output_handler import OutputHandler

        build_dir = os.path.join(self.topsrcdir, 'build')

        # XXX: currently we just use the PGO inputs for Valgrind runs.  This may
        # change in the future.
        httpd = MozHttpd(docroot=os.path.join(build_dir, 'pgo'))
        httpd.start(block=False)

        with TemporaryDirectory() as profilePath:
            #TODO: refactor this into mozprofile
            prefpath = os.path.join(self.topsrcdir, 'testing', 'profiles', 'prefs_general.js')
            prefs = {}
            prefs.update(Preferences.read_prefs(prefpath))
            interpolation = { 'server': '%s:%d' % httpd.httpd.server_address,
                              'OOP': 'false'}
            prefs = json.loads(json.dumps(prefs) % interpolation)
            for pref in prefs:
                prefs[pref] = Preferences.cast(prefs[pref])

            quitter = os.path.join(self.distdir, 'xpi-stage', 'quitter')

            locations = ServerLocations()
            locations.add_host(host='127.0.0.1',
                               port=httpd.httpd.server_port,
                               options='primary')

            profile = FirefoxProfile(profile=profilePath,
                                     preferences=prefs,
                                     addons=[quitter],
                                     locations=locations)

            firefox_args = [httpd.get_url()]

            env = os.environ.copy()
            env['G_SLICE'] = 'always-malloc'
            env['MOZ_CC_RUN_DURING_SHUTDOWN'] = '1'
            env['MOZ_CRASHREPORTER_NO_REPORT'] = '1'
            env['XPCOM_DEBUG_BREAK'] = 'warn'

            env.update(self.extra_environment_variables)

            outputHandler = OutputHandler()
            kp_kwargs = {'processOutputLine': [outputHandler]}

            valgrind = 'valgrind'
            if not os.path.exists(valgrind):
                valgrind = findInPath(valgrind)

            valgrind_args = [
                valgrind,
                '--smc-check=all-non-file',
                '--vex-iropt-register-updates=allregs-at-mem-access',
                '--gen-suppressions=all',
                '--num-callers=36',
                '--leak-check=full',
                '--show-possibly-lost=no',
                '--track-origins=yes',
                '--trace-children=yes',
                # The gstreamer plugin scanner can run as part of executing
                # firefox, but is an external program. In some weird cases,
                # valgrind finds errors while executing __libc_freeres when
                # it runs, but those are not relevant, as it's related to
                # executing third party code. So don't trace
                # gst-plugin-scanner.
                '--trace-children-skip=*/gst-plugin-scanner',
                '-v',  # Enable verbosity to get the list of used suppressions
            ]

            for s in suppressions:
                valgrind_args.append('--suppressions=' + s)

            supps_dir = os.path.join(build_dir, 'valgrind')
            supps_file1 = os.path.join(supps_dir, 'cross-architecture.sup')
            valgrind_args.append('--suppressions=' + supps_file1)

            # MACHTYPE is an odd bash-only environment variable that doesn't
            # show up in os.environ, so we have to get it another way.
            machtype = subprocess.check_output(['bash', '-c', 'echo $MACHTYPE']).rstrip()
            supps_file2 = os.path.join(supps_dir, machtype + '.sup')
            if os.path.isfile(supps_file2):
                valgrind_args.append('--suppressions=' + supps_file2)

            exitcode = None
            timeout = 1100
            try:
                runner = FirefoxRunner(profile=profile,
                                       binary=self.get_binary_path(),
#.........这里部分代码省略.........

  httpd = MozHttpd(port=PORT,
                   docroot=os.path.join(build.topsrcdir, "build", "pgo"))
  httpd.start(block=False)

  locations = ServerLocations()
  locations.add_host(host='127.0.0.1',
                     port=PORT,
                     options='primary,privileged')

  #TODO: mozfile.TemporaryDirectory
  profilePath = tempfile.mkdtemp()
  try:
    #TODO: refactor this into mozprofile
    prefpath = os.path.join(build.topsrcdir, "testing", "profiles", "prefs_general.js")
    prefs = {}
    prefs.update(Preferences.read_prefs(prefpath))
    interpolation = { "server": "%s:%d" % httpd.httpd.server_address,
                      "OOP": "false"}
    prefs = json.loads(json.dumps(prefs) % interpolation)
    for pref in prefs:
      prefs[pref] = Preferences.cast(prefs[pref])
    profile = FirefoxProfile(profile=profilePath,
                             preferences=prefs,
                             addons=[os.path.join(build.distdir, 'xpi-stage', 'quitter')],
                             locations=locations)

    env = os.environ.copy()
    env["MOZ_CRASHREPORTER_NO_REPORT"] = "1"
    env["XPCOM_DEBUG_BREAK"] = "warn"

    # For VC12, make sure we can find the right bitness of pgort120.dll

    def valgrind_test(self, suppressions):

        from mozfile import TemporaryDirectory
        from mozhttpd import MozHttpd
        from mozprofile import FirefoxProfile, Preferences
        from mozprofile.permissions import ServerLocations
        from mozrunner import FirefoxRunner
        from mozrunner.utils import findInPath
        from six import string_types
        from valgrind.output_handler import OutputHandler

        build_dir = os.path.join(self.topsrcdir, 'build')

        # XXX: currently we just use the PGO inputs for Valgrind runs.  This may
        # change in the future.
        httpd = MozHttpd(docroot=os.path.join(build_dir, 'pgo'))
        httpd.start(block=False)

        with TemporaryDirectory() as profilePath:
            # TODO: refactor this into mozprofile
            profile_data_dir = os.path.join(
                self.topsrcdir, 'testing', 'profiles')
            with open(os.path.join(profile_data_dir, 'profiles.json'), 'r') as fh:
                base_profiles = json.load(fh)['valgrind']

            prefpaths = [os.path.join(profile_data_dir, profile, 'user.js')
                         for profile in base_profiles]
            prefs = {}
            for path in prefpaths:
                prefs.update(Preferences.read_prefs(path))

            interpolation = {
                'server': '%s:%d' % httpd.httpd.server_address,
            }
            for k, v in prefs.items():
                if isinstance(v, string_types):
                    v = v.format(**interpolation)
                prefs[k] = Preferences.cast(v)

            quitter = os.path.join(
                self.topsrcdir, 'tools', 'quitter', '[email protected]')

            locations = ServerLocations()
            locations.add_host(host='127.0.0.1',
                               port=httpd.httpd.server_port,
                               options='primary')

            profile = FirefoxProfile(profile=profilePath,
                                     preferences=prefs,
                                     addons=[quitter],
                                     locations=locations)

            firefox_args = [httpd.get_url()]

            env = os.environ.copy()
            env['G_SLICE'] = 'always-malloc'
            env['MOZ_CC_RUN_DURING_SHUTDOWN'] = '1'
            env['MOZ_CRASHREPORTER_NO_REPORT'] = '1'
            env['XPCOM_DEBUG_BREAK'] = 'warn'

            env.update(self.extra_environment_variables)

            outputHandler = OutputHandler(self.log)
            kp_kwargs = {'processOutputLine': [outputHandler]}

            valgrind = 'valgrind'
            if not os.path.exists(valgrind):
                valgrind = findInPath(valgrind)

            valgrind_args = [
                valgrind,
                '--smc-check=all-non-file',
                '--vex-iropt-register-updates=allregs-at-mem-access',
                '--gen-suppressions=all',
                '--num-callers=36',
                '--leak-check=full',
                '--show-possibly-lost=no',
                '--track-origins=yes',
                '--trace-children=yes',
                '-v',  # Enable verbosity to get the list of used suppressions
                # Avoid excessive delays in the presence of spinlocks.
                # See bug 1309851.
                '--fair-sched=yes',
                # Keep debuginfo after library unmap.  See bug 1382280.
                '--keep-debuginfo=yes',
                # Reduce noise level on rustc and/or LLVM compiled code.
                # See bug 1365915
                '--expensive-definedness-checks=yes',
            ]

            for s in suppressions:
                valgrind_args.append('--suppressions=' + s)

            supps_dir = os.path.join(build_dir, 'valgrind')
            supps_file1 = os.path.join(supps_dir, 'cross-architecture.sup')
            valgrind_args.append('--suppressions=' + supps_file1)

            if mozinfo.os == 'linux':
                machtype = {
                    'x86_64': 'x86_64-pc-linux-gnu',
#.........这里部分代码省略.........

    def valgrind_test(self, suppressions):
        import json
        import re
        import sys
        import tempfile

        from mozbuild.base import MozbuildObject
        from mozfile import TemporaryDirectory
        from mozhttpd import MozHttpd
        from mozprofile import FirefoxProfile, Preferences
        from mozprofile.permissions import ServerLocations
        from mozrunner import FirefoxRunner
        from mozrunner.utils import findInPath

        build_dir = os.path.join(self.topsrcdir, "build")

        # XXX: currently we just use the PGO inputs for Valgrind runs.  This may
        # change in the future.
        httpd = MozHttpd(docroot=os.path.join(build_dir, "pgo"))
        httpd.start(block=False)

        with TemporaryDirectory() as profilePath:
            # TODO: refactor this into mozprofile
            prefpath = os.path.join(self.topsrcdir, "testing", "profiles", "prefs_general.js")
            prefs = {}
            prefs.update(Preferences.read_prefs(prefpath))
            interpolation = {"server": "%s:%d" % httpd.httpd.server_address, "OOP": "false"}
            prefs = json.loads(json.dumps(prefs) % interpolation)
            for pref in prefs:
                prefs[pref] = Preferences.cast(prefs[pref])

            quitter = os.path.join(self.distdir, "xpi-stage", "quitter")

            locations = ServerLocations()
            locations.add_host(host="127.0.0.1", port=httpd.httpd.server_port, options="primary")

            profile = FirefoxProfile(profile=profilePath, preferences=prefs, addons=[quitter], locations=locations)

            firefox_args = [httpd.get_url()]

            env = os.environ.copy()
            env["G_SLICE"] = "always-malloc"
            env["XPCOM_CC_RUN_DURING_SHUTDOWN"] = "1"
            env["MOZ_CRASHREPORTER_NO_REPORT"] = "1"
            env["XPCOM_DEBUG_BREAK"] = "warn"

            class OutputHandler(object):
                def __init__(self):
                    self.found_errors = False

                def __call__(self, line):
                    print(line)
                    m = re.match(r".*ERROR SUMMARY: [1-9]\d* errors from \d+ contexts", line)
                    if m:
                        self.found_errors = True

            outputHandler = OutputHandler()
            kp_kwargs = {"processOutputLine": [outputHandler]}

            valgrind = "valgrind"
            if not os.path.exists(valgrind):
                valgrind = findInPath(valgrind)

            valgrind_args = [
                valgrind,
                "--smc-check=all-non-file",
                "--vex-iropt-register-updates=allregs-at-mem-access",
                "--gen-suppressions=all",
                "--num-callers=20",
                "--leak-check=full",
                "--show-possibly-lost=no",
                "--track-origins=yes",
            ]

            for s in suppressions:
                valgrind_args.append("--suppressions=" + s)

            supps_dir = os.path.join(build_dir, "valgrind")
            supps_file1 = os.path.join(supps_dir, "cross-architecture.sup")
            valgrind_args.append("--suppressions=" + supps_file1)

            # MACHTYPE is an odd bash-only environment variable that doesn't
            # show up in os.environ, so we have to get it another way.
            machtype = subprocess.check_output(["bash", "-c", "echo $MACHTYPE"]).rstrip()
            supps_file2 = os.path.join(supps_dir, machtype + ".sup")
            if os.path.isfile(supps_file2):
                valgrind_args.append("--suppressions=" + supps_file2)

            exitcode = None
            try:
                runner = FirefoxRunner(
                    profile=profile, binary=self.get_binary_path(), cmdargs=firefox_args, env=env, kp_kwargs=kp_kwargs
                )
                runner.start(debug_args=valgrind_args)
                exitcode = runner.wait()

            finally:
                if not outputHandler.found_errors:
                    status = 0
                    print("TEST-PASS | valgrind-test | valgrind found no errors")
#.........这里部分代码省略.........

    def valgrind_test(self, suppressions):
        import json
        import sys
        import tempfile

        from mozbuild.base import MozbuildObject
        from mozfile import TemporaryDirectory
        from mozhttpd import MozHttpd
        from mozprofile import FirefoxProfile, Preferences
        from mozprofile.permissions import ServerLocations
        from mozrunner import FirefoxRunner
        from mozrunner.utils import findInPath
        from valgrind.output_handler import OutputHandler

        build_dir = os.path.join(self.topsrcdir, "build")

        # XXX: currently we just use the PGO inputs for Valgrind runs.  This may
        # change in the future.
        httpd = MozHttpd(docroot=os.path.join(build_dir, "pgo"))
        httpd.start(block=False)

        with TemporaryDirectory() as profilePath:
            # TODO: refactor this into mozprofile
            prefpath = os.path.join(self.topsrcdir, "testing", "profiles", "prefs_general.js")
            prefs = {}
            prefs.update(Preferences.read_prefs(prefpath))
            interpolation = {"server": "%s:%d" % httpd.httpd.server_address, "OOP": "false"}
            prefs = json.loads(json.dumps(prefs) % interpolation)
            for pref in prefs:
                prefs[pref] = Preferences.cast(prefs[pref])

            quitter = os.path.join(self.topsrcdir, "tools", "quitter", "[email protected]")

            locations = ServerLocations()
            locations.add_host(host="127.0.0.1", port=httpd.httpd.server_port, options="primary")

            profile = FirefoxProfile(profile=profilePath, preferences=prefs, addons=[quitter], locations=locations)

            firefox_args = [httpd.get_url()]

            env = os.environ.copy()
            env["G_SLICE"] = "always-malloc"
            env["MOZ_CC_RUN_DURING_SHUTDOWN"] = "1"
            env["MOZ_CRASHREPORTER_NO_REPORT"] = "1"
            env["XPCOM_DEBUG_BREAK"] = "warn"

            env.update(self.extra_environment_variables)

            outputHandler = OutputHandler(self.log)
            kp_kwargs = {"processOutputLine": [outputHandler]}

            valgrind = "valgrind"
            if not os.path.exists(valgrind):
                valgrind = findInPath(valgrind)

            valgrind_args = [
                valgrind,
                "--smc-check=all-non-file",
                "--vex-iropt-register-updates=allregs-at-mem-access",
                "--gen-suppressions=all",
                "--num-callers=36",
                "--leak-check=full",
                "--show-possibly-lost=no",
                "--track-origins=yes",
                "--trace-children=yes",
                "-v",  # Enable verbosity to get the list of used suppressions
            ]

            for s in suppressions:
                valgrind_args.append("--suppressions=" + s)

            supps_dir = os.path.join(build_dir, "valgrind")
            supps_file1 = os.path.join(supps_dir, "cross-architecture.sup")
            valgrind_args.append("--suppressions=" + supps_file1)

            # MACHTYPE is an odd bash-only environment variable that doesn't
            # show up in os.environ, so we have to get it another way.
            machtype = subprocess.check_output(["bash", "-c", "echo $MACHTYPE"]).rstrip()
            supps_file2 = os.path.join(supps_dir, machtype + ".sup")
            if os.path.isfile(supps_file2):
                valgrind_args.append("--suppressions=" + supps_file2)

            exitcode = None
            timeout = 1800
            try:
                runner = FirefoxRunner(
                    profile=profile,
                    binary=self.get_binary_path(),
                    cmdargs=firefox_args,
                    env=env,
                    process_args=kp_kwargs,
                )
                runner.start(debug_args=valgrind_args)
                exitcode = runner.wait(timeout=timeout)

            finally:
                errs = outputHandler.error_count
                supps = outputHandler.suppression_count
                if errs != supps:
                    status = 1  # turns the TBPL job orange
#.........这里部分代码省略.........

    def run(self):
        if self.options.remote_webserver:
            httpd_host = self.options.remote_webserver.split(':')[0]
        else:
            httpd_host = self.httpd.host
        httpd_port = self.httpd.httpd.server_port

        locations = ServerLocations()
        locations.add_host(host=httpd_host,
                           port=httpd_port,
                           options='primary,privileged')

        #TODO: use Preferences.read when prefs_general.js has been updated
        prefpath = self.options.prefs
        prefs = {}
        prefs.update(Preferences.read_prefs(prefpath))
        interpolation = { "server": "%s:%d" % (httpd_host, httpd_port),
                          "OOP": "false"}
        prefs = json.loads(json.dumps(prefs) % interpolation)
        for pref in prefs:
          prefs[pref] = Preferences.cast(prefs[pref])
        prefs["steeplechase.signalling_server"] = self.options.signalling_server
        prefs["steeplechase.signalling_room"] = str(uuid.uuid4())
        prefs["media.navigator.permission.disabled"] = True
        prefs["media.navigator.streams.fake"] = True

        specialpowers_path = self.options.specialpowers
        threads = []
        results = []
        cond = threading.Condition()
        for info in self.remote_info:
            with mozfile.TemporaryDirectory() as profile_path:
                # Create and push profile
                print "Writing profile for %s..." % info['name']
                prefs["steeplechase.is_initiator"] = info['is_initiator']
                profile = FirefoxProfile(profile=profile_path,
                                         preferences=prefs,
                                         addons=[specialpowers_path],
                                         locations=locations)
                print "Pushing profile to %s..." % info['name']
                remote_profile_path = posixpath.join(info['test_root'], "profile")
                info['dm'].mkDir(remote_profile_path)
                info['dm'].pushDir(profile_path, remote_profile_path)
                info['remote_profile_path'] = remote_profile_path

            env = {}
            env["MOZ_CRASHREPORTER_NO_REPORT"] = "1"
            env["XPCOM_DEBUG_BREAK"] = "warn"
            env["DISPLAY"] = self.options.remote_xdisplay

            cmd = [info['remote_app_path'], "-no-remote",
                   "-profile", info['remote_profile_path'],
                   'http://%s:%d/index.html' % (httpd_host, httpd_port)]
            print "cmd: %s" % (cmd, )
            t = RunThread(name=info['name'],
                          args=(info['dm'], cmd, env, cond, results))
            threads.append(t)

        for t in threads:
            t.start()

        self.log.info("Waiting for results...")
        pass_count, fail_count = 0, 0
        outputs = {}
        while threads:
            cond.acquire()
            while not results:
                cond.wait()
            thread, result, output = results.pop(0)
            cond.release()
            outputs[thread.name] = output
            passes, failures = result
            #XXX: double-counting tests from both clients. Ok?
            pass_count += passes
            fail_count += failures
            if failures:
                self.log.error("Error in %s" % thread.name)
            threads.remove(thread)
        self.log.info("All clients finished")
        for info in self.remote_info:
            if self.options.log_dest:
                with open(os.path.join(self.options.log_dest,
                                       "%s.log" % info['name']), "wb") as f:
                    f.write(outputs[info['name']])
            if fail_count:
                self.log.info("Log output for %s:", info["name"])
                self.log.info(">>>>>>>")
                for line in outputs[info['name']].splitlines():
                    #TODO: make structured log messages human-readable
                    self.log.info(line)
                self.log.info("<<<<<<<")
        return pass_count, fail_count

    def valgrind_test(self, suppressions):
        import json
        import sys
        import tempfile

        from mozbuild.base import MozbuildObject
        from mozfile import TemporaryDirectory
        from mozhttpd import MozHttpd
        from mozprofile import FirefoxProfile, Preferences
        from mozprofile.permissions import ServerLocations
        from mozrunner import FirefoxRunner
        from mozrunner.utils import findInPath
        from valgrind.output_handler import OutputHandler

        build_dir = os.path.join(self.topsrcdir, 'build')

        # XXX: currently we just use the PGO inputs for Valgrind runs.  This may
        # change in the future.
        httpd = MozHttpd(docroot=os.path.join(build_dir, 'pgo'))
        httpd.start(block=False)

        with TemporaryDirectory() as profilePath:
            #TODO: refactor this into mozprofile
            prefpath = os.path.join(self.topsrcdir, 'testing', 'profiles', 'prefs_general.js')
            prefs = {}
            prefs.update(Preferences.read_prefs(prefpath))
            interpolation = { 'server': '%s:%d' % httpd.httpd.server_address,
                              'OOP': 'false'}
            prefs = json.loads(json.dumps(prefs) % interpolation)
            for pref in prefs:
                prefs[pref] = Preferences.cast(prefs[pref])

            quitter = os.path.join(self.distdir, 'xpi-stage', 'quitter')

            locations = ServerLocations()
            locations.add_host(host='127.0.0.1',
                               port=httpd.httpd.server_port,
                               options='primary')

            profile = FirefoxProfile(profile=profilePath,
                                     preferences=prefs,
                                     addons=[quitter],
                                     locations=locations)

            firefox_args = [httpd.get_url()]

            env = os.environ.copy()
            env['G_SLICE'] = 'always-malloc'
            env['XPCOM_CC_RUN_DURING_SHUTDOWN'] = '1'
            env['MOZ_CRASHREPORTER_NO_REPORT'] = '1'
            env['XPCOM_DEBUG_BREAK'] = 'warn'

            outputHandler = OutputHandler()
            kp_kwargs = {'processOutputLine': [outputHandler]}

            valgrind = 'valgrind'
            if not os.path.exists(valgrind):
                valgrind = findInPath(valgrind)

            valgrind_args = [
                valgrind,
                '--smc-check=all-non-file',
                '--vex-iropt-register-updates=allregs-at-mem-access',
                '--gen-suppressions=all',
                '--num-callers=20',
                '--leak-check=full',
                '--show-possibly-lost=no',
                '--track-origins=yes'
            ]

            for s in suppressions:
                valgrind_args.append('--suppressions=' + s)

            supps_dir = os.path.join(build_dir, 'valgrind')
            supps_file1 = os.path.join(supps_dir, 'cross-architecture.sup')
            valgrind_args.append('--suppressions=' + supps_file1)

            # MACHTYPE is an odd bash-only environment variable that doesn't
            # show up in os.environ, so we have to get it another way.
            machtype = subprocess.check_output(['bash', '-c', 'echo $MACHTYPE']).rstrip()
            supps_file2 = os.path.join(supps_dir, machtype + '.sup')
            if os.path.isfile(supps_file2):
                valgrind_args.append('--suppressions=' + supps_file2)

            exitcode = None
            try:
                runner = FirefoxRunner(profile=profile,
                                       binary=self.get_binary_path(),
                                       cmdargs=firefox_args,
                                       env=env,
                                       kp_kwargs=kp_kwargs)
                runner.start(debug_args=valgrind_args)
                exitcode = runner.wait()

            finally:
                errs = outputHandler.error_count
                supps = outputHandler.suppression_count
                if errs != supps:
                    status = 1  # turns the TBPL job orange
                    print('TEST-UNEXPECTED-FAILURE | valgrind-test | error parsing:', errs, "errors seen, but", supps, "generated suppressions seen")
#.........这里部分代码省略.........