def main(tests=None, testdir=None, verbose=0, quiet=False,
         exclude=False, single=False, randomize=False, fromfile=None,
         findleaks=False, use_resources=None, trace=False, coverdir='coverage',
         runleaks=False, huntrleaks=False, verbose2=False, print_slow=False,
         expected=False, memo=None, junit_xml=None):
    """Execute a test suite.

    This also parses command-line options and modifies its behavior
    accordingly.

    tests -- a list of strings containing test names (optional)
    testdir -- the directory in which to look for tests (optional)

    Users other than the Python test suite will certainly want to
    specify testdir; if it's omitted, the directory containing the
    Python test suite is searched for.

    If the tests argument is omitted, the tests listed on the
    command-line will be used.  If that's empty, too, then all *.py
    files beginning with test_ will be used.

    The other default arguments (verbose, quiet, exclude,
    single, randomize, findleaks, use_resources, trace, coverdir, and
    print_slow) allow programmers calling main() directly to set the
    values that would normally be set by flags on the command line.
    """

    test_support.record_original_stdout(sys.stdout)
    try:
        opts, args = getopt.getopt(sys.argv[1:], 'hvqxsSrf:lu:t:TD:NLR:wM:em:j:',
                                   ['help', 'verbose', 'quiet', 'exclude',
                                    'single', 'slow', 'random', 'fromfile',
                                    'findleaks', 'use=', 'threshold=', 'trace',
                                    'coverdir=', 'nocoverdir', 'runleaks',
                                    'huntrleaks=', 'verbose2', 'memlimit=',
                                    'expected', 'memo'
                                    ])
    except getopt.error, msg:
        usage(2, msg)

    # Defaults
    allran = True
    if use_resources is None:
        use_resources = []
    for o, a in opts:
        if o in ('-h', '--help'):
            usage(0)
        elif o in ('-v', '--verbose'):
            verbose += 1
        elif o in ('-w', '--verbose2'):
            verbose2 = True
        elif o in ('-q', '--quiet'):
            quiet = True;
            verbose = 0
        elif o in ('-x', '--exclude'):
            exclude = True
            allran = False
        elif o in ('-e', '--expected'):
            expected = True
            allran = False
        elif o in ('-s', '--single'):
            single = True
        elif o in ('-S', '--slow'):
            print_slow = True
        elif o in ('-r', '--randomize'):
            randomize = True
        elif o in ('-f', '--fromfile'):
            fromfile = a
        elif o in ('-l', '--findleaks'):
            findleaks = True
        elif o in ('-L', '--runleaks'):
            runleaks = True
        elif o in ('-m', '--memo'):
            memo = a
        elif o in ('-j', '--junit-xml'):
            junit_xml = a
        elif o in ('-t', '--threshold'):
            import gc
            gc.set_threshold(int(a))
        elif o in ('-T', '--coverage'):
            trace = True
        elif o in ('-D', '--coverdir'):
            coverdir = os.path.join(os.getcwd(), a)
        elif o in ('-N', '--nocoverdir'):
            coverdir = None
        elif o in ('-R', '--huntrleaks'):
            huntrleaks = a.split(':')
            if len(huntrleaks) != 3:
                print a, huntrleaks
                usage(2, '-R takes three colon-separated arguments')
            if len(huntrleaks[0]) == 0:
                huntrleaks[0] = 5
            else:
                huntrleaks[0] = int(huntrleaks[0])
            if len(huntrleaks[1]) == 0:
                huntrleaks[1] = 4
            else:
                huntrleaks[1] = int(huntrleaks[1])
            if len(huntrleaks[2]) == 0:
                huntrleaks[2] = "reflog.txt"
        elif o in ('-M', '--memlimit'):
            test_support.set_memlimit(a)
        elif o in ('-u', '--use'):
            u = [x.lower() for x in a.split(',')]
            for r in u:
                if r == 'all':
                    use_resources[:] = RESOURCE_NAMES
                    continue
                remove = False
                if r[0] == '-':
                    remove = True
                    r = r[1:]
                if r not in RESOURCE_NAMES:
                    usage(1, 'Invalid -u/--use option: ' + a)
                if remove:
                    if r in use_resources:
                        use_resources.remove(r)
                elif r not in use_resources:
                    use_resources.append(r)
        else:
            print >>sys.stderr, ("No handler for option {0}.  Please "
                "report this as a bug at http://bugs.python.org.").format(o)
            sys.exit(1)
    if single and fromfile:
        usage(2, "-s and -f don't go together!")

    good = []
    bad = []
    skipped = []
    resource_denieds = []

    if findleaks:
        try:
            if test_support.is_jython:
                raise ImportError()
            import gc
        except ImportError:
            print 'No GC available, disabling findleaks.'
            findleaks = False
        else:
            # Uncomment the line below to report garbage that is not
            # freeable by reference counting alone.  By default only
            # garbage that is not collectable by the GC is reported.
            #gc.set_debug(gc.DEBUG_SAVEALL)
            found_garbage = []

    if single:
        from tempfile import gettempdir
        filename = os.path.join(gettempdir(), 'pynexttest')
        try:
            fp = open(filename, 'r')
            next = fp.read().strip()
            tests = [next]
            fp.close()
        except IOError:
            pass

    if fromfile:
        tests = []
        fp = open(fromfile)
        for line in fp:
            guts = line.split() # assuming no test has whitespace in its name
            if guts and not guts[0].startswith('#'):
                tests.extend(guts)
        fp.close()

    # Strip .py extensions.
    if args:
        args = map(removepy, args)
        allran = False
    if tests:
        tests = map(removepy, tests)

    stdtests = STDTESTS[:]
    nottests = NOTTESTS.copy()
    if exclude:
        for arg in args:
            if arg in stdtests:
                stdtests.remove(arg)
        nottests[:0] = args
        args = []
    tests = tests or args or findtests(testdir, stdtests, nottests)
    if single:
        tests = tests[:1]
    if randomize:
        random.shuffle(tests)
    if trace:
        import trace
        tracer = trace.Trace(ignoredirs=[sys.prefix, sys.exec_prefix],
                             trace=False, count=True)
    test_times = []
    test_support.verbose = verbose      # Tell tests to be moderately quiet
    test_support.use_resources = use_resources
    test_support.junit_xml_dir = junit_xml
    save_modules = sys.modules.keys()
    skips = _ExpectedSkips()
    failures = _ExpectedFailures()
    for test in tests:
        if expected and (test in skips or test in failures):
            continue
        if not quiet:
            print test
            sys.stdout.flush()
        if trace:
            # If we're tracing code coverage, then we don't exit with status
            # if on a false return value from main.
            tracer.runctx('runtest(test, verbose, quiet,'
                          '        test_times, testdir)',
                          globals=globals(), locals=vars())
        else:
            try:
                ok = runtest(test, verbose, quiet, test_times,
                             testdir, huntrleaks, junit_xml)
            except __HOLE__:
                # print a newline separate from the ^C
                print
                break
            except:
                raise
            if ok > 0:
                good.append(test)
            elif ok == 0:
                bad.append(test)
            else:
                skipped.append(test)
                if ok == -2:
                    resource_denieds.append(test)
        if findleaks:
            gc.collect()
            if gc.garbage:
                print "Warning: test created", len(gc.garbage),
                print "uncollectable object(s)."
                # move the uncollectable objects somewhere so we don't see
                # them again
                found_garbage.extend(gc.garbage)
                del gc.garbage[:]
        # Unload the newly imported modules (best effort finalization)
        for module in sys.modules.keys():
            if module not in save_modules and module.startswith("test."):
                test_support.unload(module)
                module = module[5:]
                if hasattr(_test, module):
                    delattr(_test, module)

    if good and not quiet:
        if not bad and not skipped and len(good) > 1:
            print "All",
        print count(len(good), "test"), "OK."
    if print_slow:
        test_times.sort(reverse=True)
        print "10 slowest tests:"
        for time, test in test_times[:10]:
            print "%s: %.1fs" % (test, time)
    surprises = 0
    if skipped and not quiet:
        print count(len(skipped), "test"), "skipped:"
        surprises += countsurprises(skips, skipped, 'skip', 'ran', allran, resource_denieds)
    if bad:
         print count(len(bad), "test"), "failed:"
         surprises += countsurprises(failures, bad, 'fail', 'passed', allran, resource_denieds)

    if verbose2 and bad:
        print "Re-running failed tests in verbose mode"
        for test in bad:
            print "Re-running test %r in verbose mode" % test
            sys.stdout.flush()
            try:
                test_support.verbose = True
                ok = runtest(test, True, quiet, test_times, testdir,
                             huntrleaks)
            except KeyboardInterrupt:
                # print a newline separate from the ^C
                print
                break
            except:
                raise

    if single:
        alltests = findtests(testdir, stdtests, nottests)
        for i in range(len(alltests)):
            if tests[0] == alltests[i]:
                if i == len(alltests) - 1:
                    os.unlink(filename)
                else:
                    fp = open(filename, 'w')
                    fp.write(alltests[i+1] + '\n')
                    fp.close()
                break
        else:
            os.unlink(filename)

    if trace:
        r = tracer.results()
        r.write_results(show_missing=True, summary=True, coverdir=coverdir)

    if runleaks:
        os.system("leaks %d" % os.getpid())

    if memo:
        savememo(memo,good,bad,skipped)

    sys.exit(surprises > 0)
dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/test/regrtest.py/main