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      1 # Copyright (C) 2010, 2012 Google Inc. All rights reserved.
      2 #
      3 # Redistribution and use in source and binary forms, with or without
      4 # modification, are permitted provided that the following conditions are
      5 # met:
      6 #
      7 #     * Redistributions of source code must retain the above copyright
      8 # notice, this list of conditions and the following disclaimer.
      9 #     * Redistributions in binary form must reproduce the above
     10 # copyright notice, this list of conditions and the following disclaimer
     11 # in the documentation and/or other materials provided with the
     12 # distribution.
     13 #     * Neither the name of Google Inc. nor the names of its
     14 # contributors may be used to endorse or promote products derived from
     15 # this software without specific prior written permission.
     16 #
     17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28 
     29 """Package that handles non-debug, non-file output for run-webkit-tests."""
     30 
     31 import math
     32 import optparse
     33 
     34 from webkitpy.tool import grammar
     35 from webkitpy.layout_tests.models import test_expectations
     36 from webkitpy.layout_tests.models.test_expectations import TestExpectations, TestExpectationParser
     37 from webkitpy.layout_tests.views.metered_stream import MeteredStream
     38 
     39 
     40 NUM_SLOW_TESTS_TO_LOG = 10
     41 
     42 
     43 def print_options():
     44     return [
     45         optparse.make_option('-q', '--quiet', action='store_true', default=False,
     46                              help='run quietly (errors, warnings, and progress only)'),
     47         optparse.make_option('--timing', action='store_true', default=False,
     48                              help='display test times (summary plus per-test w/ --verbose)'),
     49         optparse.make_option('-v', '--verbose', action='store_true', default=False,
     50                              help='print a summarized result for every test (one line per test)'),
     51         optparse.make_option('--details', action='store_true', default=False,
     52                              help='print detailed results for every test'),
     53         optparse.make_option('--debug-rwt-logging', action='store_true', default=False,
     54                              help='print timestamps and debug information for run-webkit-tests itself'),
     55     ]
     56 
     57 
     58 class Printer(object):
     59     """Class handling all non-debug-logging printing done by run-webkit-tests."""
     60 
     61     def __init__(self, port, options, regular_output, logger=None):
     62         self.num_completed = 0
     63         self.num_tests = 0
     64         self._port = port
     65         self._options = options
     66         self._meter = MeteredStream(regular_output, options.debug_rwt_logging, logger=logger,
     67                                     number_of_columns=self._port.host.platform.terminal_width())
     68         self._running_tests = []
     69         self._completed_tests = []
     70 
     71     def cleanup(self):
     72         self._meter.cleanup()
     73 
     74     def __del__(self):
     75         self.cleanup()
     76 
     77     def print_config(self, results_directory):
     78         self._print_default("Using port '%s'" % self._port.name())
     79         self._print_default("Test configuration: %s" % self._port.test_configuration())
     80         self._print_default("Placing test results in %s" % results_directory)
     81 
     82         # FIXME: should these options be in printing_options?
     83         if self._options.new_baseline:
     84             self._print_default("Placing new baselines in %s" % self._port.baseline_path())
     85 
     86         fs = self._port.host.filesystem
     87         fallback_path = [fs.split(x)[1] for x in self._port.baseline_search_path()]
     88         self._print_default("Baseline search path: %s -> generic" % " -> ".join(fallback_path))
     89 
     90         self._print_default("Using %s build" % self._options.configuration)
     91         if self._options.pixel_tests:
     92             self._print_default("Pixel tests enabled")
     93         else:
     94             self._print_default("Pixel tests disabled")
     95 
     96         self._print_default("Regular timeout: %s, slow test timeout: %s" %
     97                   (self._options.time_out_ms, self._options.slow_time_out_ms))
     98 
     99         self._print_default('Command line: ' + ' '.join(self._port.driver_cmd_line()))
    100         self._print_default('')
    101 
    102     def print_found(self, num_all_test_files, num_to_run, repeat_each, iterations):
    103         found_str = 'Found %s; running %d' % (grammar.pluralize('test', num_all_test_files), num_to_run)
    104         if repeat_each * iterations > 1:
    105             found_str += ' (%d times each: --repeat-each=%d --iterations=%d)' % (repeat_each * iterations, repeat_each, iterations)
    106         found_str += ', skipping %d' % (num_all_test_files - num_to_run)
    107         self._print_default(found_str + '.')
    108 
    109     def print_expected(self, run_results, tests_with_result_type_callback):
    110         self._print_expected_results_of_type(run_results, test_expectations.PASS, "passes", tests_with_result_type_callback)
    111         self._print_expected_results_of_type(run_results, test_expectations.FAIL, "failures", tests_with_result_type_callback)
    112         self._print_expected_results_of_type(run_results, test_expectations.FLAKY, "flaky", tests_with_result_type_callback)
    113         self._print_debug('')
    114 
    115     def print_workers_and_shards(self, num_workers, num_shards, num_locked_shards):
    116         driver_name = self._port.driver_name()
    117         if num_workers == 1:
    118             self._print_default("Running 1 %s." % driver_name)
    119             self._print_debug("(%s)." % grammar.pluralize('shard', num_shards))
    120         else:
    121             self._print_default("Running %d %ss in parallel." % (num_workers, driver_name))
    122             self._print_debug("(%d shards; %d locked)." % (num_shards, num_locked_shards))
    123         self._print_default('')
    124 
    125     def _print_expected_results_of_type(self, run_results, result_type, result_type_str, tests_with_result_type_callback):
    126         tests = tests_with_result_type_callback(result_type)
    127         now = run_results.tests_by_timeline[test_expectations.NOW]
    128         wontfix = run_results.tests_by_timeline[test_expectations.WONTFIX]
    129 
    130         # We use a fancy format string in order to print the data out in a
    131         # nicely-aligned table.
    132         fmtstr = ("Expect: %%5d %%-8s (%%%dd now, %%%dd wontfix)"
    133                   % (self._num_digits(now), self._num_digits(wontfix)))
    134         self._print_debug(fmtstr % (len(tests), result_type_str, len(tests & now), len(tests & wontfix)))
    135 
    136     def _num_digits(self, num):
    137         ndigits = 1
    138         if len(num):
    139             ndigits = int(math.log10(len(num))) + 1
    140         return ndigits
    141 
    142     def print_results(self, run_time, run_results, summarized_results):
    143         self._print_timing_statistics(run_time, run_results)
    144         self._print_one_line_summary(run_time, run_results)
    145 
    146     def _print_timing_statistics(self, total_time, run_results):
    147         self._print_debug("Test timing:")
    148         self._print_debug("  %6.2f total testing time" % total_time)
    149         self._print_debug("")
    150 
    151         self._print_worker_statistics(run_results, int(self._options.child_processes))
    152         self._print_aggregate_test_statistics(run_results)
    153         self._print_individual_test_times(run_results)
    154         self._print_directory_timings(run_results)
    155 
    156     def _print_worker_statistics(self, run_results, num_workers):
    157         self._print_debug("Thread timing:")
    158         stats = {}
    159         cuml_time = 0
    160         for result in run_results.results_by_name.values():
    161             stats.setdefault(result.worker_name, {'num_tests': 0, 'total_time': 0})
    162             stats[result.worker_name]['num_tests'] += 1
    163             stats[result.worker_name]['total_time'] += result.total_run_time
    164             cuml_time += result.total_run_time
    165 
    166         for worker_name in stats:
    167             self._print_debug("    %10s: %5d tests, %6.2f secs" % (worker_name, stats[worker_name]['num_tests'], stats[worker_name]['total_time']))
    168         self._print_debug("   %6.2f cumulative, %6.2f optimal" % (cuml_time, cuml_time / num_workers))
    169         self._print_debug("")
    170 
    171     def _print_aggregate_test_statistics(self, run_results):
    172         times_for_dump_render_tree = [result.test_run_time for result in run_results.results_by_name.values()]
    173         self._print_statistics_for_test_timings("PER TEST TIME IN TESTSHELL (seconds):", times_for_dump_render_tree)
    174 
    175     def _print_individual_test_times(self, run_results):
    176         # Reverse-sort by the time spent in the driver.
    177 
    178         individual_test_timings = sorted(run_results.results_by_name.values(), key=lambda result: result.test_run_time, reverse=True)
    179         num_printed = 0
    180         slow_tests = []
    181         timeout_or_crash_tests = []
    182         unexpected_slow_tests = []
    183         for test_tuple in individual_test_timings:
    184             test_name = test_tuple.test_name
    185             is_timeout_crash_or_slow = False
    186             if test_name in run_results.slow_tests:
    187                 is_timeout_crash_or_slow = True
    188                 slow_tests.append(test_tuple)
    189 
    190             if test_name in run_results.failures_by_name:
    191                 result = run_results.results_by_name[test_name].type
    192                 if (result == test_expectations.TIMEOUT or
    193                     result == test_expectations.CRASH):
    194                     is_timeout_crash_or_slow = True
    195                     timeout_or_crash_tests.append(test_tuple)
    196 
    197             if (not is_timeout_crash_or_slow and num_printed < NUM_SLOW_TESTS_TO_LOG):
    198                 num_printed = num_printed + 1
    199                 unexpected_slow_tests.append(test_tuple)
    200 
    201         self._print_debug("")
    202         if unexpected_slow_tests:
    203             self._print_test_list_timing("%s slowest tests that are not marked as SLOW and did not timeout/crash:" %
    204                 NUM_SLOW_TESTS_TO_LOG, unexpected_slow_tests)
    205             self._print_debug("")
    206 
    207         if slow_tests:
    208             self._print_test_list_timing("Tests marked as SLOW:", slow_tests)
    209             self._print_debug("")
    210 
    211         if timeout_or_crash_tests:
    212             self._print_test_list_timing("Tests that timed out or crashed:", timeout_or_crash_tests)
    213             self._print_debug("")
    214 
    215     def _print_test_list_timing(self, title, test_list):
    216         self._print_debug(title)
    217         for test_tuple in test_list:
    218             test_run_time = round(test_tuple.test_run_time, 1)
    219             self._print_debug("  %s took %s seconds" % (test_tuple.test_name, test_run_time))
    220 
    221     def _print_directory_timings(self, run_results):
    222         stats = {}
    223         for result in run_results.results_by_name.values():
    224             stats.setdefault(result.shard_name, {'num_tests': 0, 'total_time': 0})
    225             stats[result.shard_name]['num_tests'] += 1
    226             stats[result.shard_name]['total_time'] += result.total_run_time
    227 
    228         min_seconds_to_print = 15
    229 
    230         timings = []
    231         for directory in stats:
    232             rounded_time = round(stats[directory]['total_time'], 1)
    233             if rounded_time > min_seconds_to_print:
    234                 timings.append((directory, rounded_time, stats[directory]['num_tests']))
    235 
    236         if not timings:
    237             return
    238 
    239         timings.sort()
    240 
    241         self._print_debug("Time to process slowest subdirectories:")
    242         for timing in timings:
    243             self._print_debug("  %s took %s seconds to run %s tests." % timing)
    244         self._print_debug("")
    245 
    246     def _print_statistics_for_test_timings(self, title, timings):
    247         self._print_debug(title)
    248         timings.sort()
    249 
    250         num_tests = len(timings)
    251         if not num_tests:
    252             return
    253         percentile90 = timings[int(.9 * num_tests)]
    254         percentile99 = timings[int(.99 * num_tests)]
    255 
    256         if num_tests % 2 == 1:
    257             median = timings[((num_tests - 1) / 2) - 1]
    258         else:
    259             lower = timings[num_tests / 2 - 1]
    260             upper = timings[num_tests / 2]
    261             median = (float(lower + upper)) / 2
    262 
    263         mean = sum(timings) / num_tests
    264 
    265         for timing in timings:
    266             sum_of_deviations = math.pow(timing - mean, 2)
    267 
    268         std_deviation = math.sqrt(sum_of_deviations / num_tests)
    269         self._print_debug("  Median:          %6.3f" % median)
    270         self._print_debug("  Mean:            %6.3f" % mean)
    271         self._print_debug("  90th percentile: %6.3f" % percentile90)
    272         self._print_debug("  99th percentile: %6.3f" % percentile99)
    273         self._print_debug("  Standard dev:    %6.3f" % std_deviation)
    274         self._print_debug("")
    275 
    276     def _print_one_line_summary(self, total_time, run_results):
    277         if self._options.timing:
    278             parallel_time = sum(result.total_run_time for result in run_results.results_by_name.values())
    279 
    280             # There is serial overhead in layout_test_runner.run() that we can't easily account for when
    281             # really running in parallel, but taking the min() ensures that in the worst case
    282             # (if parallel time is less than run_time) we do account for it.
    283             serial_time = total_time - min(run_results.run_time, parallel_time)
    284 
    285             speedup = (parallel_time + serial_time) / total_time
    286             timing_summary = ' in %.2fs (%.2fs in rwt, %.2gx)' % (total_time, serial_time, speedup)
    287         else:
    288             timing_summary = ''
    289 
    290         total = run_results.total - run_results.expected_skips
    291         expected = run_results.expected - run_results.expected_skips
    292         unexpected = run_results.unexpected
    293         incomplete = total - expected - unexpected
    294         incomplete_str = ''
    295         if incomplete:
    296             self._print_default("")
    297             incomplete_str = " (%d didn't run)" % incomplete
    298 
    299         if self._options.verbose or self._options.debug_rwt_logging or unexpected:
    300             self.writeln("")
    301 
    302         expected_summary_str = ''
    303         if run_results.expected_failures > 0:
    304             expected_summary_str = " (%d passed, %d didn't)" % (expected - run_results.expected_failures, run_results.expected_failures)
    305 
    306         summary = ''
    307         if unexpected == 0:
    308             if expected == total:
    309                 if expected > 1:
    310                     summary = "All %d tests ran as expected%s%s." % (expected, expected_summary_str, timing_summary)
    311                 else:
    312                     summary = "The test ran as expected%s%s." % (expected_summary_str, timing_summary)
    313             else:
    314                 summary = "%s ran as expected%s%s%s." % (grammar.pluralize('test', expected), expected_summary_str, incomplete_str, timing_summary)
    315         else:
    316             summary = "%s ran as expected%s, %d didn't%s%s:" % (grammar.pluralize('test', expected), expected_summary_str, unexpected, incomplete_str, timing_summary)
    317 
    318         self._print_quiet(summary)
    319         self._print_quiet("")
    320 
    321     def _test_status_line(self, test_name, suffix):
    322         format_string = '[%d/%d] %s%s'
    323         status_line = format_string % (self.num_completed, self.num_tests, test_name, suffix)
    324         if len(status_line) > self._meter.number_of_columns():
    325             overflow_columns = len(status_line) - self._meter.number_of_columns()
    326             ellipsis = '...'
    327             if len(test_name) < overflow_columns + len(ellipsis) + 2:
    328                 # We don't have enough space even if we elide, just show the test filename.
    329                 fs = self._port.host.filesystem
    330                 test_name = fs.split(test_name)[1]
    331             else:
    332                 new_length = len(test_name) - overflow_columns - len(ellipsis)
    333                 prefix = int(new_length / 2)
    334                 test_name = test_name[:prefix] + ellipsis + test_name[-(new_length - prefix):]
    335         return format_string % (self.num_completed, self.num_tests, test_name, suffix)
    336 
    337     def print_started_test(self, test_name):
    338         self._running_tests.append(test_name)
    339         if len(self._running_tests) > 1:
    340             suffix = ' (+%d)' % (len(self._running_tests) - 1)
    341         else:
    342             suffix = ''
    343         if self._options.verbose:
    344             write = self._meter.write_update
    345         else:
    346             write = self._meter.write_throttled_update
    347         write(self._test_status_line(test_name, suffix))
    348 
    349     def print_finished_test(self, result, expected, exp_str, got_str):
    350         self.num_completed += 1
    351         test_name = result.test_name
    352 
    353         result_message = self._result_message(result.type, result.failures, expected,
    354                                               self._options.timing, result.test_run_time)
    355 
    356         if self._options.details:
    357             self._print_test_trace(result, exp_str, got_str)
    358         elif self._options.verbose or not expected:
    359             self.writeln(self._test_status_line(test_name, result_message))
    360         elif self.num_completed == self.num_tests:
    361             self._meter.write_update('')
    362         else:
    363             if test_name == self._running_tests[0]:
    364                 self._completed_tests.insert(0, [test_name, result_message])
    365             else:
    366                 self._completed_tests.append([test_name, result_message])
    367 
    368             for test_name, result_message in self._completed_tests:
    369                 self._meter.write_throttled_update(self._test_status_line(test_name, result_message))
    370             self._completed_tests = []
    371         self._running_tests.remove(test_name)
    372 
    373     def _result_message(self, result_type, failures, expected, timing, test_run_time):
    374         exp_string = ' unexpectedly' if not expected else ''
    375         timing_string = ' %.4fs' % test_run_time if timing else ''
    376         if result_type == test_expectations.PASS:
    377             return ' passed%s%s' % (exp_string, timing_string)
    378         else:
    379             return ' failed%s (%s)%s' % (exp_string, ', '.join(failure.message() for failure in failures), timing_string)
    380 
    381     def _print_test_trace(self, result, exp_str, got_str):
    382         test_name = result.test_name
    383         self._print_default(self._test_status_line(test_name, ''))
    384 
    385         base = self._port.lookup_virtual_test_base(test_name)
    386         if base:
    387             args = ' '.join(self._port.lookup_virtual_test_args(test_name))
    388             self._print_default(' base: %s' % base)
    389             self._print_default(' args: %s' % args)
    390 
    391         for extension in ('.txt', '.png', '.wav'):
    392             self._print_baseline(test_name, extension)
    393 
    394         self._print_default('  exp: %s' % exp_str)
    395         self._print_default('  got: %s' % got_str)
    396         self._print_default(' took: %-.3f' % result.test_run_time)
    397         self._print_default('')
    398 
    399     def _print_baseline(self, test_name, extension):
    400         baseline = self._port.expected_filename(test_name, extension)
    401         if self._port._filesystem.exists(baseline):
    402             relpath = self._port.relative_test_filename(baseline)
    403         else:
    404             relpath = '<none>'
    405         self._print_default('  %s: %s' % (extension[1:], relpath))
    406 
    407     def _print_quiet(self, msg):
    408         self.writeln(msg)
    409 
    410     def _print_default(self, msg):
    411         if not self._options.quiet:
    412             self.writeln(msg)
    413 
    414     def _print_debug(self, msg):
    415         if self._options.debug_rwt_logging:
    416             self.writeln(msg)
    417 
    418     def write_update(self, msg):
    419         self._meter.write_update(msg)
    420 
    421     def writeln(self, msg):
    422         self._meter.writeln(msg)
    423 
    424     def flush(self):
    425         self._meter.flush()
    426