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How to use _test_status method in gabbi

Best Python code snippet using gabbi_python
gtest_parser.py
Source:gtest_parser.py
1# Copyright (c) 2017 The Chromium OS Authors. All rights reserved.2# Use of this source code is governed by a BSD-style license that can be3# found in the LICENSE file.4"""Utility class to parse the output of a gtest suite run."""5import re6class gtest_parser(object):7    """This class knows how to understand GTest test output.8    The code was borrowed with minor changes from chrome utility gtest_command.9        http://src.chromium.org/viewvc/chrome/trunk/tools/build/scripts/master/10        log_parser/gtest_command.py?view=markup11    """12    def __init__(self):13        # State tracking for log parsing14        self._current_test = ''15        self._failure_description = []16        self._current_suppression_hash = ''17        self._current_suppression = []18        # Line number currently being processed.19        self._line_number = 020        # List of parsing errors, as human-readable strings.21        self.internal_error_lines = []22        # Tests are stored here as 'test.name': (status, [description]).23        # The status should be one of ('started', 'OK', 'failed', 'timeout').24        # The description is a list of lines detailing the test's error, as25        # reported in the log.26        self._test_status = {}27        # Suppressions are stored here as 'hash': [suppression].28        self._suppressions = {}29        # This may be either text or a number. It will be used in the phrase30        # '%s disabled' or '%s flaky' on the waterfall display.31        self.disabled_tests = 032        self.flaky_tests = 033        # Regular expressions for parsing GTest logs. Test names look like34        #   SomeTestCase.SomeTest35        #   SomeName/SomeTestCase.SomeTest/136        # This regexp also matches SomeName.SomeTest/1, which should be37        # harmless.38        test_name_regexp = r'((\w+/)?\w+\.\w+(\.\w+)?(/\d+)?)'39        self._test_start = re.compile('\[\s+RUN\s+\] ' + test_name_regexp)40        self._test_ok = re.compile('\[\s+OK\s+\] ' + test_name_regexp)41        self._test_fail = re.compile('\[\s+FAILED\s+\] ' + test_name_regexp)42        self._test_timeout = re.compile(43            'Test timeout \([0-9]+ ms\) exceeded for ' + test_name_regexp)44        self._disabled = re.compile('  YOU HAVE (\d+) DISABLED TEST')45        self._flaky = re.compile('  YOU HAVE (\d+) FLAKY TEST')46        self._suppression_start = re.compile(47            'Suppression \(error hash=#([0-9A-F]+)#\):')48        self._suppression_end = re.compile('^}\s*$')49        self._master_name_re = re.compile('\[Running for master: "([^"]*)"')50        self.master_name = ''51        self._error_logging_start_re = re.compile('=' * 70)52        self._error_logging_test_name_re = re.compile(53            '[FAIL|ERROR]: ' + test_name_regexp)54        self._error_logging_end_re = re.compile('-' * 70)55        self._error_logging_first_dash_found = False56    def _TestsByStatus(self, status, include_fails, include_flaky):57        """Returns list of tests with the given status.58        Args:59            status: test results status to search for.60            include_fails: If False, tests containing 'FAILS_' anywhere in61                their names will be excluded from the list.62            include_flaky: If False, tests containing 'FLAKY_' anywhere in63                their names will be excluded from the list.64        Returns:65            List of tests with the status.66        """67        test_list = [x[0] for x in self._test_status.items()68                     if self._StatusOfTest(x[0]) == status]69        if not include_fails:70            test_list = [x for x in test_list if x.find('FAILS_') == -1]71        if not include_flaky:72            test_list = [x for x in test_list if x.find('FLAKY_') == -1]73        return test_list74    def _StatusOfTest(self, test):75        """Returns the status code for the given test, or 'not known'."""76        test_status = self._test_status.get(test, ('not known', []))77        return test_status[0]78    def _RecordError(self, line, reason):79        """Record a log line that produced a parsing error.80        Args:81            line: text of the line at which the error occurred.82            reason: a string describing the error.83        """84        self.internal_error_lines.append("%s: %s [%s]" % (self._line_number,85                                                          line.strip(),86                                                          reason))87    def TotalTests(self):88        """Returns the number of parsed tests."""89        return len(self._test_status)90    def PassedTests(self):91        """Returns list of tests that passed."""92        return self._TestsByStatus('OK', False, False)93    def FailedTests(self, include_fails=False, include_flaky=False):94        """Returns list of tests that failed, timed out, or didn't finish.95        This list will be incorrect until the complete log has been processed,96        because it will show currently running tests as having failed.97        Args:98            include_fails: If true, all failing tests with FAILS_ in their99                names will be included. Otherwise, they will only be included100                if they crashed.101            include_flaky: If true, all failing tests with FLAKY_ in their102                names will be included. Otherwise, they will only be included103                if they crashed.104        Returns:105            List of failed tests.106        """107        return (self._TestsByStatus('failed', include_fails, include_flaky) +108                self._TestsByStatus('timeout', include_fails, include_flaky) +109                self._TestsByStatus('started', include_fails, include_flaky))110    def FailureDescription(self, test):111        """Returns a list containing the failure description for the given test.112        If the test didn't fail or timeout, returns [].113        Args:114            test: Name to test to find failure reason.115        Returns:116            List of test name, and failure string.117        """118        test_status = self._test_status.get(test, ('', []))119        return test_status[1]120    def SuppressionHashes(self):121        """Returns list of suppression hashes found in the log."""122        return self._suppressions.keys()123    def Suppression(self, suppression_hash):124        """Returns a list containing the suppression for a given hash.125        If the suppression hash doesn't exist, returns [].126        Args:127            suppression_hash: name of hash.128        Returns:129            List of suppression for the hash.130        """131        return self._suppressions.get(suppression_hash, [])132    def ProcessLogLine(self, line):133        """This is called once with each line of the test log."""134        # Track line number for error messages.135        self._line_number += 1136        if not self.master_name:137            results = self._master_name_re.search(line)138            if results:139                self.master_name = results.group(1)140        # Is it a line reporting disabled tests?141        results = self._disabled.search(line)142        if results:143            try:144                disabled = int(results.group(1))145            except ValueError:146                disabled = 0147            if disabled > 0 and isinstance(self.disabled_tests, int):148                self.disabled_tests += disabled149            else:150                # If we can't parse the line, at least give a heads-up. This is151                # a safety net for a case that shouldn't happen but isn't a152                # fatal error.153                self.disabled_tests = 'some'154            return155        # Is it a line reporting flaky tests?156        results = self._flaky.search(line)157        if results:158            try:159                flaky = int(results.group(1))160            except ValueError:161                flaky = 0162            if flaky > 0 and isinstance(self.flaky_tests, int):163                self.flaky_tests = flaky164            else:165                # If we can't parse the line, at least give a heads-up. This is166                # a safety net for a case that shouldn't happen but isn't a167                # fatal error.168                self.flaky_tests = 'some'169            return170        # Is it the start of a test?171        results = self._test_start.search(line)172        if results:173            test_name = results.group(1)174            if test_name in self._test_status:175                self._RecordError(line, 'test started more than once')176                return177            if self._current_test:178                status = self._StatusOfTest(self._current_test)179                if status in ('OK', 'failed', 'timeout'):180                    self._RecordError(line, 'start while in status %s' % status)181                    return182                if status not in ('failed', 'timeout'):183                    self._test_status[self._current_test] = (184                        'failed', self._failure_description)185            self._test_status[test_name] = ('started', ['Did not complete.'])186            self._current_test = test_name187            self._failure_description = []188            return189        # Is it a test success line?190        results = self._test_ok.search(line)191        if results:192            test_name = results.group(1)193            status = self._StatusOfTest(test_name)194            if status != 'started':195                self._RecordError(line, 'success while in status %s' % status)196                return197            self._test_status[test_name] = ('OK', [])198            self._failure_description = []199            self._current_test = ''200            return201        # Is it a test failure line?202        results = self._test_fail.search(line)203        if results:204            test_name = results.group(1)205            status = self._StatusOfTest(test_name)206            if status not in ('started', 'failed', 'timeout'):207                self._RecordError(line, 'failure while in status %s' % status)208                return209            # Don't overwrite the failure description when a failing test is210            # listed a second time in the summary, or if it was already211            # recorded as timing out.212            if status not in ('failed', 'timeout'):213                self._test_status[test_name] = ('failed',214                                                self._failure_description)215            self._failure_description = []216            self._current_test = ''217            return218        # Is it a test timeout line?219        results = self._test_timeout.search(line)220        if results:221            test_name = results.group(1)222            status = self._StatusOfTest(test_name)223            if status not in ('started', 'failed'):224                self._RecordError(line, 'timeout while in status %s' % status)225                return226            self._test_status[test_name] = (227                'timeout', self._failure_description + ['Killed (timed out).'])228            self._failure_description = []229            self._current_test = ''230            return231        # Is it the start of a new valgrind suppression?232        results = self._suppression_start.search(line)233        if results:234            suppression_hash = results.group(1)235            if suppression_hash in self._suppressions:236                self._RecordError(line, 'suppression reported more than once')237                return238            self._suppressions[suppression_hash] = []239            self._current_suppression_hash = suppression_hash240            self._current_suppression = [line]241            return242        # Is it the end of a valgrind suppression?243        results = self._suppression_end.search(line)244        if results and self._current_suppression_hash:245            self._current_suppression.append(line)246            self._suppressions[self._current_suppression_hash] = (247                self._current_suppression)248            self._current_suppression_hash = ''249            self._current_suppression = []250            return251        # Is it the start of a test summary error message?252        results = self._error_logging_test_name_re.search(line)253        if results:254            test_name = results.group(1)255            self._test_status[test_name] = ('failed', ['Output not found.'])256            self._current_test = test_name257            self._failure_description = []258            self._error_logging_first_dash_found = False259            return260        # Is it the start of the next test summary signaling the end261        # of the previous message?262        results = self._error_logging_start_re.search(line)263        if results and self._current_test:264            self._test_status[self._current_test] = ('failed',265                                                     self._failure_description)266            self._failure_description = []267            self._current_test = ''268            return269        # Is it the end of the extra test failure summaries?270        results = self._error_logging_end_re.search(line)271        if results and self._current_test:272            if self._error_logging_first_dash_found:273                self._test_status[self._current_test] = (274                    'failed', self._failure_description)275                self._failure_description = []276                self._current_test = ''277            self._error_logging_first_dash_found = True278            return279        # Random line: if we're in a suppression, collect it. Suppressions are280        # generated after all tests are finished, so this should always belong281        # to the current suppression hash.282        if self._current_suppression_hash:283            self._current_suppression.append(line)284            return285        # Random line: if we're in a test, collect it for the failure286        # description. Tests may run simultaneously, so this might be off, but287        # it's worth a try.288        if self._current_test:...
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