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#!/usr/bin/env python
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import os, sys
import subprocess
import tempfile
from zipfile import ZipFile
import runcppunittests as cppunittests
import mozcrash
import mozfile
import mozinfo
import mozlog
import StringIO
import posixpath
from mozdevice import devicemanager, devicemanagerADB, devicemanagerSUT

try:
    from mozbuild.base import MozbuildObject
    build_obj = MozbuildObject.from_environment()
except ImportError:
    build_obj = None

class RemoteCPPUnitTests(cppunittests.CPPUnitTests):
    def __init__(self, devmgr, options, progs):
        cppunittests.CPPUnitTests.__init__(self)
        self.options = options
        self.device = devmgr
        self.remote_test_root = self.device.deviceRoot + "/cppunittests"
        self.remote_bin_dir = posixpath.join(self.remote_test_root, "b")
        self.remote_tmp_dir = posixpath.join(self.remote_test_root, "tmp")
        self.remote_home_dir = posixpath.join(self.remote_test_root, "h")
        if options.setup:
            self.setup_bin(progs)

    def setup_bin(self, progs):
        if not self.device.dirExists(self.remote_test_root):
            self.device.mkDir(self.remote_test_root)
        if self.device.dirExists(self.remote_tmp_dir):
            self.device.removeDir(self.remote_tmp_dir)
        self.device.mkDir(self.remote_tmp_dir)
        if self.device.dirExists(self.remote_bin_dir):
            self.device.removeDir(self.remote_bin_dir)
        self.device.mkDir(self.remote_bin_dir)
        if self.device.dirExists(self.remote_home_dir):
            self.device.removeDir(self.remote_home_dir)
        self.device.mkDir(self.remote_home_dir)
        self.push_libs()
        self.push_progs(progs)
        self.device.chmodDir(self.remote_bin_dir)

    def push_libs(self):
        if self.options.local_bin is not None:
            szip = os.path.join(self.options.local_bin, '..', 'host', 'bin', 'szip')
            if not os.path.exists(szip):
                # Tinderbox builds must run szip from the test package
                szip = os.path.join(self.options.local_bin, 'host', 'szip')
            if not os.path.exists(szip):
                # If the test package doesn't contain szip, it means files
                # are not szipped in the test package.
                szip = None
        else:
            szip = None
        if self.options.local_apk:
            with mozfile.TemporaryDirectory() as tmpdir:
                apk_contents = ZipFile(self.options.local_apk)

                for info in apk_contents.infolist():
                    if info.filename.endswith(".so"):
                        print >> sys.stderr, "Pushing %s.." % info.filename
                        remote_file = posixpath.join(self.remote_bin_dir, os.path.basename(info.filename))
                        apk_contents.extract(info, tmpdir)
                        local_file = os.path.join(tmpdir, info.filename)
                        if szip:
                            try:
                                out = subprocess.check_output([szip, '-d', local_file], stderr=subprocess.STDOUT)
                            except CalledProcessError:
                                print >> sys.stderr, "Error calling %s on %s.." % (szip, local_file)
                                if out:
                                    print >> sys.stderr, out
                        self.device.pushFile(local_file, remote_file)

        elif self.options.local_lib:
            for file in os.listdir(self.options.local_lib):
                if file.endswith(".so"):
                    print >> sys.stderr, "Pushing %s.." % file
                    remote_file = posixpath.join(self.remote_bin_dir, file)
                    local_file = os.path.join(self.options.local_lib, file)
                    if szip:
                        try:
                            out = subprocess.check_output([szip, '-d', local_file], stderr=subprocess.STDOUT)
                        except CalledProcessError:
                            print >> sys.stderr, "Error calling %s on %s.." % (szip, local_file)
                            if out:
                                print >> sys.stderr, out
                    self.device.pushFile(local_file, remote_file)
            # Additional libraries may be found in a sub-directory such as "lib/armeabi-v7a"
            for subdir in ["assets", "lib"]:
                local_arm_lib = os.path.join(self.options.local_lib, subdir)
                if os.path.isdir(local_arm_lib):
                    for root, dirs, files in os.walk(local_arm_lib):
                        for file in files:
                            if (file.endswith(".so")):
                                print >> sys.stderr, "Pushing %s.." % file
                                remote_file = posixpath.join(self.remote_bin_dir, file)
                                local_file = os.path.join(root, file)
                                if szip:
                                    try:
                                        out = subprocess.check_output([szip, '-d', local_file], stderr=subprocess.STDOUT)
                                    except CalledProcessError:
                                        print >> sys.stderr, "Error calling %s on %s.." % (szip, local_file)
                                        if out:
                                            print >> sys.stderr, out
                                self.device.pushFile(local_file, remote_file)

    def push_progs(self, progs):
        for local_file in progs:
            remote_file = posixpath.join(self.remote_bin_dir, os.path.basename(local_file))
            self.device.pushFile(local_file, remote_file)

    def build_environment(self):
        env = self.build_core_environment()
        env['LD_LIBRARY_PATH'] = self.remote_bin_dir
        env["TMPDIR"]=self.remote_tmp_dir
        env["HOME"]=self.remote_home_dir
        env["MOZILLA_FIVE_HOME"] = self.remote_home_dir
        env["MOZ_XRE_DIR"] = self.remote_bin_dir
        if self.options.add_env:
            for envdef in self.options.add_env:
                envdef_parts = envdef.split("=", 1)
                if len(envdef_parts) == 2:
                    env[envdef_parts[0]] = envdef_parts[1]
                elif len(envdef_parts) == 1:
                    env[envdef_parts[0]] = ""
                else:
                    self.log.warning("invalid --addEnv option skipped: %s" % envdef)

        return env

    def run_one_test(self, prog, env, symbols_path=None, interactive=False,
                     timeout_factor=1):
        """
        Run a single C++ unit test program remotely.

        Arguments:
        * prog: The path to the test program to run.
        * env: The environment to use for running the program.
        * symbols_path: A path to a directory containing Breakpad-formatted
                        symbol files for producing stack traces on crash.
        * timeout_factor: An optional test-specific timeout multiplier.

        Return True if the program exits with a zero status, False otherwise.
        """
        basename = os.path.basename(prog)
        remote_bin = posixpath.join(self.remote_bin_dir, basename)
        self.log.test_start(basename)
        buf = StringIO.StringIO()
        test_timeout = cppunittests.CPPUnitTests.TEST_PROC_TIMEOUT * timeout_factor
        returncode = self.device.shell([remote_bin], buf, env=env, cwd=self.remote_home_dir,
                                       timeout=test_timeout)
        self.log.process_output(basename, "\n%s" % buf.getvalue(),
                                command=[remote_bin])
        with mozfile.TemporaryDirectory() as tempdir:
            self.device.getDirectory(self.remote_home_dir, tempdir)
            if mozcrash.check_for_crashes(tempdir, symbols_path,
                                          test_name=basename):
                self.log.test_end(basename, status='CRASH', expected='PASS')
                return False
        result = returncode == 0
        if not result:
            self.log.test_end(basename, status='FAIL', expected='PASS',
                              message=("test failed with return code %d" %
                                       returncode))
        else:
            self.log.test_end(basename, status='PASS', expected='PASS')
        return result

class RemoteCPPUnittestOptions(cppunittests.CPPUnittestOptions):
    def __init__(self):
        cppunittests.CPPUnittestOptions.__init__(self)
        defaults = {}

        self.add_option("--deviceIP", action="store",
                        type = "string", dest = "device_ip",
                        help = "ip address of remote device to test")
        defaults["device_ip"] = None

        self.add_option("--devicePort", action="store",
                        type = "string", dest = "device_port",
                        help = "port of remote device to test")
        defaults["device_port"] = 20701

        self.add_option("--dm_trans", action="store",
                        type = "string", dest = "dm_trans",
                        help = "the transport to use to communicate with device: [adb|sut]; default=sut")
        defaults["dm_trans"] = "sut"

        self.add_option("--noSetup", action="store_false",
                        dest = "setup",
                        help = "do not copy any files to device (to be used only if device is already setup)")
        defaults["setup"] = True

        self.add_option("--localLib", action="store",
                        type = "string", dest = "local_lib",
                        help = "location of libraries to push -- preferably stripped")
        defaults["local_lib"] = None

        self.add_option("--apk", action="store",
                        type = "string", dest = "local_apk",
                        help = "local path to Fennec APK")
        defaults["local_apk"] = None

        self.add_option("--localBinDir", action="store",
                        type = "string", dest = "local_bin",
                        help = "local path to bin directory")
        defaults["local_bin"] = build_obj.bindir if build_obj is not None else None

        self.add_option("--remoteTestRoot", action = "store",
                    type = "string", dest = "remote_test_root",
                    help = "remote directory to use as test root (eg. /data/local/tests)")
        # /data/local/tests is used because it is usually not possible to set +x permissions
        # on binaries on /mnt/sdcard
        defaults["remote_test_root"] = "/data/local/tests"

        self.add_option("--with-b2g-emulator", action = "store",
                    type = "string", dest = "with_b2g_emulator",
                    help = "Start B2G Emulator (specify path to b2g home)")
        self.add_option("--emulator", default="arm", choices=["x86", "arm"],
                    help = "Architecture of emulator to use: x86 or arm")
        self.add_option("--addEnv", action = "append",
                    type = "string", dest = "add_env",
                    help = "additional remote environment variable definitions (eg. --addEnv \"somevar=something\")")
        defaults["add_env"] = None

        self.set_defaults(**defaults)

def run_test_harness(options, args):
    if options.with_b2g_emulator:
        from mozrunner import B2GEmulatorRunner
        runner = B2GEmulatorRunner(arch=options.emulator, b2g_home=options.with_b2g_emulator)
        runner.start()
    if options.dm_trans == "adb":
        if options.with_b2g_emulator:
            # because we just started the emulator, we need more than the
            # default number of retries here.
            retryLimit = 50
        else:
            retryLimit = 5
        try:
            if options.device_ip:
                dm = devicemanagerADB.DeviceManagerADB(options.device_ip, options.device_port, packageName=None, deviceRoot=options.remote_test_root, retryLimit=retryLimit)
            else:
                dm = devicemanagerADB.DeviceManagerADB(packageName=None, deviceRoot=options.remote_test_root, retryLimit=retryLimit)
        except:
            if options.with_b2g_emulator:
                runner.cleanup()
                runner.wait()
            raise
    else:
        dm = devicemanagerSUT.DeviceManagerSUT(options.device_ip, options.device_port, deviceRoot=options.remote_test_root)
        if not options.device_ip:
            print "Error: you must provide a device IP to connect to via the --deviceIP option"
            sys.exit(1)

    options.xre_path = os.path.abspath(options.xre_path)
    cppunittests.update_mozinfo()
    progs = cppunittests.extract_unittests_from_args(args,
                                                     mozinfo.info,
                                                     options.manifest_path)
    tester = RemoteCPPUnitTests(dm, options, [item[0] for item in progs])
    try:
        result = tester.run_tests(progs, options.xre_path, options.symbols_path)
    finally:
        if options.with_b2g_emulator:
            runner.cleanup()
            runner.wait()
    return result

def main():
    parser = RemoteCPPUnittestOptions()
    mozlog.commandline.add_logging_group(parser)
    options, args = parser.parse_args()
    if not args:
        print >>sys.stderr, """Usage: %s <test binary> [<test binary>...]""" % sys.argv[0]
        sys.exit(1)
    if options.local_lib is not None and not os.path.isdir(options.local_lib):
        print >>sys.stderr, """Error: --localLib directory %s not found""" % options.local_lib
        sys.exit(1)
    if options.local_apk is not None and not os.path.isfile(options.local_apk):
        print >>sys.stderr, """Error: --apk file %s not found""" % options.local_apk
        sys.exit(1)
    if not options.xre_path:
        print >>sys.stderr, """Error: --xre-path is required"""
        sys.exit(1)

    log = mozlog.commandline.setup_logging("remotecppunittests", options,
                                           {"tbpl": sys.stdout})
    try:
        result = run_test_harness(options, args)
    except Exception, e:
        log.error(str(e))
        result = False
    sys.exit(0 if result else 1)

if __name__ == '__main__':
    main()