testing/runcppunittests.py
author Hiroyuki Ikezoe <hikezoe@mozilla.com>
Sat, 15 Sep 2018 01:00:07 +0000
changeset 492144 67a5acf7363d9dd2c8532967ec1beb0c200abc2c
parent 448377 0502ddaaf68071b92c75e9104420d59bbcf8e3a4
child 531705 63bc837753d653ab13635e432400c1b6d31d12ca
permissions -rwxr-xr-x
Bug 1486971 - Test for dynamically change of the prefers-reduced-motion setting on MacOSX. r=froydnj,mstange The framework to simulate the setting change works as following; - nsIDOMWindowUtils.setPrefersReducedMotion() calls an IPC function which ends up calling nsChildView::SetPrefersReducedMotion() in the parent process - nsChildView::SetPrefersReducedMotion() sets the given value into nsLookAndFeel::mPrefersReducedMotionCached just like we set the value queried via NSWorkspace.accessibilityDisplayShouldReduceMotion in the parent process and send a notification which is the same notification MacOSX sends when the system setting changed - Normally the cached value is cleared before quering new values since the cache value is stale, but in this case the value is up-to-date one, so nsChildView::SetPrefersReducedMotion() tells that we don't need to clear the cache, and nsIDOMWindowUtils.resetPrefersReducedMotion() resets that state of 'we don't need to clear the cache' There are two test cases with the framework in this commit, one is just setting the value and checking the value queried by window.matchMedia. The other one is receiving 'change' event and checking the value of the event target. Note that to make this test works the patch for bug 1478212 is necessary since the test runs in an iframe. Depends on D5003 Differential Revision: https://phabricator.services.mozilla.com/D5004

#!/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/.

from __future__ import with_statement
import sys
import os
from optparse import OptionParser
from os import environ as env
import manifestparser
import mozprocess
import mozinfo
import mozcrash
import mozfile
import mozlog

SCRIPT_DIR = os.path.abspath(os.path.realpath(os.path.dirname(__file__)))

# Export directory js/src for tests that need it.
env['CPP_UNIT_TESTS_DIR_JS_SRC'] = os.path.abspath(os.path.join(SCRIPT_DIR, "..", ".."))


class CPPUnitTests(object):
    # Time (seconds) to wait for test process to complete
    TEST_PROC_TIMEOUT = 900
    # Time (seconds) in which process will be killed if it produces no output.
    TEST_PROC_NO_OUTPUT_TIMEOUT = 300

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

        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)
        self.log.test_start(basename)
        with mozfile.TemporaryDirectory() as tempdir:
            if interactive:
                # For tests run locally, via mach, print output directly
                proc = mozprocess.ProcessHandler([prog],
                                                 cwd=tempdir,
                                                 env=env,
                                                 storeOutput=False)
            else:
                proc = mozprocess.ProcessHandler([prog],
                                                 cwd=tempdir,
                                                 env=env,
                                                 storeOutput=True,
                                                 processOutputLine=lambda _: None)
            # TODO: After bug 811320 is fixed, don't let .run() kill the process,
            # instead use a timeout in .wait() and then kill to get a stack.
            test_timeout = CPPUnitTests.TEST_PROC_TIMEOUT * timeout_factor
            proc.run(timeout=test_timeout,
                     outputTimeout=CPPUnitTests.TEST_PROC_NO_OUTPUT_TIMEOUT)
            proc.wait()
            if proc.output:
                output = "\n%s" % "\n".join(proc.output)
                self.log.process_output(proc.pid, output, command=[prog])
            if proc.timedOut:
                message = "timed out after %d seconds" % CPPUnitTests.TEST_PROC_TIMEOUT
                self.log.test_end(basename, status='TIMEOUT', expected='PASS',
                                  message=message)
                return False
            if mozcrash.check_for_crashes(tempdir, symbols_path,
                                          test_name=basename):
                self.log.test_end(basename, status='CRASH', expected='PASS')
                return False
            result = proc.proc.returncode == 0
            if not result:
                self.log.test_end(basename, status='FAIL', expected='PASS',
                                  message=("test failed with return code %d" %
                                           proc.proc.returncode))
            else:
                self.log.test_end(basename, status='PASS', expected='PASS')
            return result

    def build_core_environment(self, env={}):
        """
        Add environment variables likely to be used across all platforms, including remote systems.
        """
        env["MOZ_XRE_DIR"] = self.xre_path
        # TODO: switch this to just abort once all C++ unit tests have
        # been fixed to enable crash reporting
        env["XPCOM_DEBUG_BREAK"] = "stack-and-abort"
        env["MOZ_CRASHREPORTER_NO_REPORT"] = "1"
        env["MOZ_CRASHREPORTER"] = "1"
        return env

    def build_environment(self):
        """
        Create and return a dictionary of all the appropriate env variables and values.
        On a remote system, we overload this to set different values and are missing things
        like os.environ and PATH.
        """
        if not os.path.isdir(self.xre_path):
            raise Exception("xre_path does not exist: %s", self.xre_path)
        env = dict(os.environ)
        env = self.build_core_environment(env)
        pathvar = ""
        libpath = self.xre_path
        if mozinfo.os == "linux":
            pathvar = "LD_LIBRARY_PATH"
        elif mozinfo.os == "mac":
            applibpath = os.path.join(os.path.dirname(libpath), 'MacOS')
            if os.path.exists(applibpath):
                # Set the library load path to Contents/MacOS if we're run from
                # the app bundle.
                libpath = applibpath
            pathvar = "DYLD_LIBRARY_PATH"
        elif mozinfo.os == "win":
            pathvar = "PATH"
        if pathvar:
            if pathvar in env:
                env[pathvar] = "%s%s%s" % (libpath, os.pathsep, env[pathvar])
            else:
                env[pathvar] = libpath

        if mozinfo.info["asan"]:
            # Use llvm-symbolizer for ASan if available/required
            llvmsym = os.path.join(
                self.xre_path,
                "llvm-symbolizer" + mozinfo.info["bin_suffix"].encode('ascii'))
            if os.path.isfile(llvmsym):
                env["ASAN_SYMBOLIZER_PATH"] = llvmsym
                self.log.info("ASan using symbolizer at %s" % llvmsym)
            else:
                self.log.info("Failed to find ASan symbolizer at %s" % llvmsym)

            # media/mtransport tests statically link in NSS, which
            # causes ODR violations. See bug 1215679.
            assert 'ASAN_OPTIONS' not in env
            env['ASAN_OPTIONS'] = 'detect_leaks=0:detect_odr_violation=0'

        return env

    def run_tests(self, programs, xre_path, symbols_path=None, interactive=False):
        """
        Run a set of C++ unit test programs.

        Arguments:
        * programs: An iterable containing (test path, test timeout factor) tuples
        * xre_path: A path to a directory containing a XUL Runtime Environment.
        * symbols_path: A path to a directory containing Breakpad-formatted
                        symbol files for producing stack traces on crash.

        Returns True if all test programs exited with a zero status, False
        otherwise.
        """
        self.xre_path = xre_path
        self.log = mozlog.get_default_logger()
        self.log.suite_start(programs, name='cppunittest')
        env = self.build_environment()
        pass_count = 0
        fail_count = 0
        for prog in programs:
            test_path = prog[0]
            timeout_factor = prog[1]
            single_result = self.run_one_test(test_path, env, symbols_path,
                                              interactive, timeout_factor)
            if single_result:
                pass_count += 1
            else:
                fail_count += 1
        self.log.suite_end()

        # Mozharness-parseable summary formatting.
        self.log.info("Result summary:")
        self.log.info("cppunittests INFO | Passed: %d" % pass_count)
        self.log.info("cppunittests INFO | Failed: %d" % fail_count)
        return fail_count == 0


class CPPUnittestOptions(OptionParser):
    def __init__(self):
        OptionParser.__init__(self)
        self.add_option("--xre-path",
                        action="store", type="string", dest="xre_path",
                        default=None,
                        help="absolute path to directory containing XRE (probably xulrunner)")
        self.add_option("--symbols-path",
                        action="store", type="string", dest="symbols_path",
                        default=None,
                        help="absolute path to directory containing breakpad symbols, or "
                        "the URL of a zip file containing symbols")
        self.add_option("--manifest-path",
                        action="store", type="string", dest="manifest_path",
                        default=None,
                        help="path to test manifest, if different from the path to test binaries")


def extract_unittests_from_args(args, environ, manifest_path):
    """Extract unittests from args, expanding directories as needed"""
    mp = manifestparser.TestManifest(strict=True)
    tests = []
    binary_path = None

    if manifest_path:
        mp.read(manifest_path)
        binary_path = os.path.abspath(args[0])
    else:
        for p in args:
            if os.path.isdir(p):
                try:
                    mp.read(os.path.join(p, 'cppunittest.ini'))
                except IOError:
                    files = [os.path.abspath(os.path.join(p, x)) for x in os.listdir(p)]
                    tests.extend((f, 1) for f in files
                                 if os.access(f, os.R_OK | os.X_OK))
            else:
                tests.append((os.path.abspath(p), 1))

    # we skip the existence check here because not all tests are built
    # for all platforms (and it will fail on Windows anyway)
    active_tests = mp.active_tests(exists=False, disabled=False, **environ)
    suffix = '.exe' if mozinfo.isWin else ''
    if binary_path:
        tests.extend([
            (os.path.join(binary_path, test['relpath'] + suffix),
             int(test.get('requesttimeoutfactor', 1)))
            for test in active_tests])
    else:
        tests.extend([
            (test['path'] + suffix,
             int(test.get('requesttimeoutfactor', 1)))
            for test in active_tests
        ])

    # skip non-existing tests
    tests = [test for test in tests if os.path.isfile(test[0])]

    return tests


def update_mozinfo():
    """walk up directories to find mozinfo.json update the info"""
    path = SCRIPT_DIR
    dirs = set()
    while path != os.path.expanduser('~'):
        if path in dirs:
            break
        dirs.add(path)
        path = os.path.split(path)[0]
    mozinfo.find_and_update_from_json(*dirs)


def run_test_harness(options, args):
    update_mozinfo()
    progs = extract_unittests_from_args(args, mozinfo.info, options.manifest_path)
    options.xre_path = os.path.abspath(options.xre_path)
    tester = CPPUnitTests()
    result = tester.run_tests(progs, options.xre_path, options.symbols_path)

    return result


def main():
    parser = CPPUnittestOptions()
    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 not options.xre_path:
        print >>sys.stderr, """Error: --xre-path is required"""
        sys.exit(1)
    if options.manifest_path and len(args) > 1:
        print >>sys.stderr, "Error: multiple arguments not supported with --test-manifest"
        sys.exit(1)
    log = mozlog.commandline.setup_logging("cppunittests", options,
                                           {"tbpl": sys.stdout})
    try:
        result = run_test_harness(options, args)
    except Exception as e:
        log.error(str(e))
        result = False

    sys.exit(0 if result else 1)


if __name__ == '__main__':
    main()