#! /usr/bin/python import osimport sysimport globimport optparseimport tempfileimport loggingimport shutilimport ConfigParser class Fail(Exception):    def __init__(self, test, msg):        self.msg = msg        self.test = test    def getMsg(self):        return '\'%s\' - %s' % (self.test.path, self.msg) class Unsup(Exception):    def __init__(self, test):        self.test = test    def getMsg(self):        return '\'%s\'' % self.test.path class Event(dict):    terms = [        'cpu',        'flags',        'type',        'size',        'config',        'sample_period',        'sample_type',        'read_format',        'disabled',        'inherit',        'pinned',        'exclusive',        'exclude_user',        'exclude_kernel',        'exclude_hv',        'exclude_idle',        'mmap',        'comm',        'freq',        'inherit_stat',        'enable_on_exec',        'task',        'watermark',        'precise_ip',        'mmap_data',        'sample_id_all',        'exclude_host',        'exclude_guest',        'exclude_callchain_kernel',        'exclude_callchain_user',        'wakeup_events',        'bp_type',        'config1',        'config2',        'branch_sample_type',        'sample_regs_user',        'sample_stack_user',    ]     def add(self, data):        for key, val in data:            log.debug("      %s = %s" % (key, val))            self[key] = val     def __init__(self, name, data, base):        log.debug("    Event %s" % name);        self.name  = name;        self.group = ''        self.add(base)        self.add(data)     def compare_data(self, a, b):        # Allow multiple values in assignment separated by '|'        a_list = a.split('|')        b_list = b.split('|')         for a_item in a_list:            for b_item in b_list:                if (a_item == b_item):                    return True                elif (a_item == '*') or (b_item == '*'):                    return True         return False     def equal(self, other):        for t in Event.terms:            log.debug("      [%s] %s %s" % (t, self[t], other[t]));            if not self.has_key(t) or not other.has_key(t):                return False            if not self.compare_data(self[t], other[t]):                return False        return True     def diff(self, other):        for t in Event.terms:            if not self.has_key(t) or not other.has_key(t):                continue            if not self.compare_data(self[t], other[t]):		log.warning("expected %s=%s, got %s" % (t, self[t], other[t]))                 # Test file description needs to have following sections:# [config]#   - just single instance in file#   - needs to specify:#     'command' - perf command name#     'args'    - special command arguments#     'ret'     - expected command return value (0 by default)## [eventX:base]#   - one or multiple instances in file#   - expected values assignmentsclass Test(object):    def __init__(self, path, options):        parser = ConfigParser.SafeConfigParser()        parser.read(path)         log.warning("running '%s'" % path)         self.path     = path        self.test_dir = options.test_dir        self.perf     = options.perf        self.command  = parser.get('config', 'command')        self.args     = parser.get('config', 'args')         try:            self.ret  = parser.get('config', 'ret')        except:            self.ret  = 0         self.expect   = {}        self.result   = {}        log.debug("  loading expected events");        self.load_events(path, self.expect)     def is_event(self, name):        if name.find("event") == -1:            return False        else:            return True     def load_events(self, path, events):        parser_event = ConfigParser.SafeConfigParser()        parser_event.read(path)         # The event record section header contains 'event' word,        # optionaly followed by ':' allowing to load 'parent        # event' first as a base        for section in filter(self.is_event, parser_event.sections()):             parser_items = parser_event.items(section);            base_items   = {}             # Read parent event if there's any            if (':' in section):                base = section[section.index(':') + 1:]                parser_base = ConfigParser.SafeConfigParser()                parser_base.read(self.test_dir + '/' + base)                base_items = parser_base.items('event')             e = Event(section, parser_items, base_items)            events[section] = e     def run_cmd(self, tempdir):        cmd = "PERF_TEST_ATTR=%s %s %s -o %s/perf.data %s" % (tempdir,              self.perf, self.command, tempdir, self.args)        ret = os.WEXITSTATUS(os.system(cmd))         log.info("  '%s' ret %d " % (cmd, ret))         if ret != int(self.ret):            raise Unsup(self)     def compare(self, expect, result):        match = {}         log.debug("  compare");         # For each expected event find all matching        # events in result. Fail if there's not any.        for exp_name, exp_event in expect.items():            exp_list = []            log.debug("    matching [%s]" % exp_name)            for res_name, res_event in result.items():                log.debug("      to [%s]" % res_name)                if (exp_event.equal(res_event)):                    exp_list.append(res_name)                    log.debug("    ->OK")                else:                    log.debug("    ->FAIL");             log.debug("    match: [%s] matches %s" % (exp_name, str(exp_list)))             # we did not any matching event - fail            if (not exp_list):		exp_event.diff(res_event)                raise Fail(self, 'match failure');             match[exp_name] = exp_list         # For each defined group in the expected events        # check we match the same group in the result.        for exp_name, exp_event in expect.items():            group = exp_event.group             if (group == ''):                continue             for res_name in match[exp_name]:                res_group = result[res_name].group                if res_group not in match[group]:                    raise Fail(self, 'group failure')                 log.debug("    group: [%s] matches group leader %s" %                         (exp_name, str(match[group])))         log.debug("  matched")     def resolve_groups(self, events):        for name, event in events.items():            group_fd = event['group_fd'];            if group_fd == '-1':                continue;             for iname, ievent in events.items():                if (ievent['fd'] == group_fd):                    event.group = iname                    log.debug('[%s] has group leader [%s]' % (name, iname))                    break;     def run(self):        tempdir = tempfile.mkdtemp();         try:            # run the test script            self.run_cmd(tempdir);             # load events expectation for the test            log.debug("  loading result events");            for f in glob.glob(tempdir + '/event*'):                self.load_events(f, self.result);             # resolve group_fd to event names            self.resolve_groups(self.expect);            self.resolve_groups(self.result);             # do the expectation - results matching - both ways            self.compare(self.expect, self.result)            self.compare(self.result, self.expect)         finally:            # cleanup            shutil.rmtree(tempdir)  def run_tests(options):    for f in glob.glob(options.test_dir + '/' + options.test):        try:            Test(f, options).run()        except Unsup, obj:            log.warning("unsupp  %s" % obj.getMsg()) def setup_log(verbose):    global log    level = logging.CRITICAL     if verbose == 1:        level = logging.WARNING    if verbose == 2:        level = logging.INFO    if verbose >= 3:        level = logging.DEBUG     log = logging.getLogger('test')    log.setLevel(level)    ch  = logging.StreamHandler()    ch.setLevel(level)    formatter = logging.Formatter('%(message)s')    ch.setFormatter(formatter)    log.addHandler(ch) USAGE = '''%s [OPTIONS]  -d dir  # tests dir  -p path # perf binary  -t test # single test  -v      # verbose level''' % sys.argv[0] def main():    parser = optparse.OptionParser(usage=USAGE)     parser.add_option("-t", "--test",                      action="store", type="string", dest="test")    parser.add_option("-d", "--test-dir",                      action="store", type="string", dest="test_dir")    parser.add_option("-p", "--perf",                      action="store", type="string", dest="perf")    parser.add_option("-v", "--verbose",                      action="count", dest="verbose")     options, args = parser.parse_args()    if args:        parser.error('FAILED wrong arguments %s' %  ' '.join(args))        return -1     setup_log(options.verbose)     if not options.test_dir:        print 'FAILED no -d option specified'        sys.exit(-1)     if not options.test:        options.test = 'test*'     try:        run_tests(options)     except Fail, obj:        print "FAILED %s" % obj.getMsg();        sys.exit(-1)     sys.exit(0) if __name__ == '__main__':    main()