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Diffstat (limited to 'packages/Python/lldbsuite/test/xunit_formatter.py')
| -rw-r--r-- | packages/Python/lldbsuite/test/xunit_formatter.py | 565 |
1 files changed, 565 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/xunit_formatter.py b/packages/Python/lldbsuite/test/xunit_formatter.py new file mode 100644 index 0000000000000..35fdba449a0c4 --- /dev/null +++ b/packages/Python/lldbsuite/test/xunit_formatter.py @@ -0,0 +1,565 @@ +""" + The LLVM Compiler Infrastructure + +This file is distributed under the University of Illinois Open Source +License. See LICENSE.TXT for details. + +Provides an xUnit ResultsFormatter for integrating the LLDB +test suite with the Jenkins xUnit aggregator and other xUnit-compliant +test output processors. +""" +from __future__ import print_function +from __future__ import absolute_import + +# System modules +import re +import sys +import xml.sax.saxutils + +# Third-party modules +import six + +# Local modules +from .result_formatter import EventBuilder +from .result_formatter import ResultsFormatter + + +class XunitFormatter(ResultsFormatter): + """Provides xUnit-style formatted output. + """ + + # Result mapping arguments + RM_IGNORE = 'ignore' + RM_SUCCESS = 'success' + RM_FAILURE = 'failure' + RM_PASSTHRU = 'passthru' + + @staticmethod + def _build_illegal_xml_regex(): + """Contructs a regex to match all illegal xml characters. + + Expects to be used against a unicode string.""" + # Construct the range pairs of invalid unicode chareacters. + illegal_chars_u = [ + (0x00, 0x08), (0x0B, 0x0C), (0x0E, 0x1F), (0x7F, 0x84), + (0x86, 0x9F), (0xFDD0, 0xFDDF), (0xFFFE, 0xFFFF)] + + # For wide builds, we have more. + if sys.maxunicode >= 0x10000: + illegal_chars_u.extend( + [(0x1FFFE, 0x1FFFF), (0x2FFFE, 0x2FFFF), (0x3FFFE, 0x3FFFF), + (0x4FFFE, 0x4FFFF), (0x5FFFE, 0x5FFFF), (0x6FFFE, 0x6FFFF), + (0x7FFFE, 0x7FFFF), (0x8FFFE, 0x8FFFF), (0x9FFFE, 0x9FFFF), + (0xAFFFE, 0xAFFFF), (0xBFFFE, 0xBFFFF), (0xCFFFE, 0xCFFFF), + (0xDFFFE, 0xDFFFF), (0xEFFFE, 0xEFFFF), (0xFFFFE, 0xFFFFF), + (0x10FFFE, 0x10FFFF)]) + + # Build up an array of range expressions. + illegal_ranges = [ + "%s-%s" % (six.unichr(low), six.unichr(high)) + for (low, high) in illegal_chars_u] + + # Compile the regex + return re.compile(six.u('[%s]') % six.u('').join(illegal_ranges)) + + @staticmethod + def _quote_attribute(text): + """Returns the given text in a manner safe for usage in an XML attribute. + + @param text the text that should appear within an XML attribute. + @return the attribute-escaped version of the input text. + """ + return xml.sax.saxutils.quoteattr(text) + + def _replace_invalid_xml(self, str_or_unicode): + """Replaces invalid XML characters with a '?'. + + @param str_or_unicode a string to replace invalid XML + characters within. Can be unicode or not. If not unicode, + assumes it is a byte string in utf-8 encoding. + + @returns a utf-8-encoded byte string with invalid + XML replaced with '?'. + """ + # Get the content into unicode + if isinstance(str_or_unicode, str): + unicode_content = str_or_unicode.decode('utf-8') + else: + unicode_content = str_or_unicode + return self.invalid_xml_re.sub( + six.u('?'), unicode_content).encode('utf-8') + + @classmethod + def arg_parser(cls): + """@return arg parser used to parse formatter-specific options.""" + parser = super(XunitFormatter, cls).arg_parser() + + # These are valid choices for results mapping. + results_mapping_choices = [ + XunitFormatter.RM_IGNORE, + XunitFormatter.RM_SUCCESS, + XunitFormatter.RM_FAILURE, + XunitFormatter.RM_PASSTHRU] + parser.add_argument( + "--assert-on-unknown-events", + action="store_true", + help=('cause unknown test events to generate ' + 'a python assert. Default is to ignore.')) + parser.add_argument( + "--ignore-skip-name", + "-n", + metavar='PATTERN', + action="append", + dest='ignore_skip_name_patterns', + help=('a python regex pattern, where ' + 'any skipped test with a test method name where regex ' + 'matches (via search) will be ignored for xUnit test ' + 'result purposes. Can be specified multiple times.')) + parser.add_argument( + "--ignore-skip-reason", + "-r", + metavar='PATTERN', + action="append", + dest='ignore_skip_reason_patterns', + help=('a python regex pattern, where ' + 'any skipped test with a skip reason where the regex ' + 'matches (via search) will be ignored for xUnit test ' + 'result purposes. Can be specified multiple times.')) + parser.add_argument( + "--xpass", action="store", choices=results_mapping_choices, + default=XunitFormatter.RM_FAILURE, + help=('specify mapping from unexpected success to jUnit/xUnit ' + 'result type')) + parser.add_argument( + "--xfail", action="store", choices=results_mapping_choices, + default=XunitFormatter.RM_IGNORE, + help=('specify mapping from expected failure to jUnit/xUnit ' + 'result type')) + return parser + + @staticmethod + def _build_regex_list_from_patterns(patterns): + """Builds a list of compiled regexes from option value. + + @param option string containing a comma-separated list of regex + patterns. Zero-length or None will produce an empty regex list. + + @return list of compiled regular expressions, empty if no + patterns provided. + """ + regex_list = [] + if patterns is not None: + for pattern in patterns: + regex_list.append(re.compile(pattern)) + return regex_list + + def __init__(self, out_file, options): + """Initializes the XunitFormatter instance. + @param out_file file-like object where formatted output is written. + @param options_dict specifies a dictionary of options for the + formatter. + """ + # Initialize the parent + super(XunitFormatter, self).__init__(out_file, options) + self.text_encoding = "UTF-8" + self.invalid_xml_re = XunitFormatter._build_illegal_xml_regex() + self.total_test_count = 0 + self.ignore_skip_name_regexes = ( + XunitFormatter._build_regex_list_from_patterns( + options.ignore_skip_name_patterns)) + self.ignore_skip_reason_regexes = ( + XunitFormatter._build_regex_list_from_patterns( + options.ignore_skip_reason_patterns)) + + self.elements = { + "successes": [], + "errors": [], + "failures": [], + "skips": [], + "unexpected_successes": [], + "expected_failures": [], + "all": [] + } + + self.status_handlers = { + EventBuilder.STATUS_SUCCESS: self._handle_success, + EventBuilder.STATUS_FAILURE: self._handle_failure, + EventBuilder.STATUS_ERROR: self._handle_error, + EventBuilder.STATUS_SKIP: self._handle_skip, + EventBuilder.STATUS_EXPECTED_FAILURE: + self._handle_expected_failure, + EventBuilder.STATUS_EXPECTED_TIMEOUT: + self._handle_expected_timeout, + EventBuilder.STATUS_UNEXPECTED_SUCCESS: + self._handle_unexpected_success, + EventBuilder.STATUS_EXCEPTIONAL_EXIT: + self._handle_exceptional_exit, + EventBuilder.STATUS_TIMEOUT: + self._handle_timeout + } + + RESULT_TYPES = set( + [EventBuilder.TYPE_TEST_RESULT, + EventBuilder.TYPE_JOB_RESULT]) + + def handle_event(self, test_event): + super(XunitFormatter, self).handle_event(test_event) + + event_type = test_event["event"] + if event_type is None: + return + + if event_type == "terminate": + # Process all the final result events into their + # XML counterparts. + for result_event in self.result_events.values(): + self._process_test_result(result_event) + self._finish_output() + else: + # This is an unknown event. + if self.options.assert_on_unknown_events: + raise Exception("unknown event type {} from {}\n".format( + event_type, test_event)) + + def _handle_success(self, test_event): + """Handles a test success. + @param test_event the test event to handle. + """ + result = self._common_add_testcase_entry(test_event) + with self.lock: + self.elements["successes"].append(result) + + def _handle_failure(self, test_event): + """Handles a test failure. + @param test_event the test event to handle. + """ + message = self._replace_invalid_xml(test_event["issue_message"]) + backtrace = self._replace_invalid_xml( + "".join(test_event.get("issue_backtrace", []))) + + result = self._common_add_testcase_entry( + test_event, + inner_content=( + '<failure type={} message={}><![CDATA[{}]]></failure>'.format( + XunitFormatter._quote_attribute(test_event["issue_class"]), + XunitFormatter._quote_attribute(message), + backtrace) + )) + with self.lock: + self.elements["failures"].append(result) + + def _handle_error(self, test_event): + """Handles a test error. + @param test_event the test event to handle. + """ + message = self._replace_invalid_xml(test_event["issue_message"]) + backtrace = self._replace_invalid_xml( + "".join(test_event.get("issue_backtrace", []))) + + result = self._common_add_testcase_entry( + test_event, + inner_content=( + '<error type={} message={}><![CDATA[{}]]></error>'.format( + XunitFormatter._quote_attribute(test_event["issue_class"]), + XunitFormatter._quote_attribute(message), + backtrace) + )) + with self.lock: + self.elements["errors"].append(result) + + def _handle_exceptional_exit(self, test_event): + """Handles an exceptional exit. + @param test_event the test method or job result event to handle. + """ + if "test_name" in test_event: + name = test_event["test_name"] + else: + name = test_event.get("test_filename", "<unknown test/filename>") + + message_text = "ERROR: {} ({}): {}".format( + test_event.get("exception_code", 0), + test_event.get("exception_description", ""), + name) + message = self._replace_invalid_xml(message_text) + + result = self._common_add_testcase_entry( + test_event, + inner_content=( + '<error type={} message={}></error>'.format( + "exceptional_exit", + XunitFormatter._quote_attribute(message)) + )) + with self.lock: + self.elements["errors"].append(result) + + def _handle_timeout(self, test_event): + """Handles a test method or job timeout. + @param test_event the test method or job result event to handle. + """ + if "test_name" in test_event: + name = test_event["test_name"] + else: + name = test_event.get("test_filename", "<unknown test/filename>") + + message_text = "TIMEOUT: {}".format(name) + message = self._replace_invalid_xml(message_text) + + result = self._common_add_testcase_entry( + test_event, + inner_content=( + '<error type={} message={}></error>'.format( + "timeout", + XunitFormatter._quote_attribute(message)) + )) + with self.lock: + self.elements["errors"].append(result) + + @staticmethod + def _ignore_based_on_regex_list(test_event, test_key, regex_list): + """Returns whether to ignore a test event based on patterns. + + @param test_event the test event dictionary to check. + @param test_key the key within the dictionary to check. + @param regex_list a list of zero or more regexes. May contain + zero or more compiled regexes. + + @return True if any o the regex list match based on the + re.search() method; false otherwise. + """ + for regex in regex_list: + match = regex.search(test_event.get(test_key, '')) + if match: + return True + return False + + def _handle_skip(self, test_event): + """Handles a skipped test. + @param test_event the test event to handle. + """ + + # Are we ignoring this test based on test name? + if XunitFormatter._ignore_based_on_regex_list( + test_event, 'test_name', self.ignore_skip_name_regexes): + return + + # Are we ignoring this test based on skip reason? + if XunitFormatter._ignore_based_on_regex_list( + test_event, 'skip_reason', self.ignore_skip_reason_regexes): + return + + # We're not ignoring this test. Process the skip. + reason = self._replace_invalid_xml(test_event.get("skip_reason", "")) + result = self._common_add_testcase_entry( + test_event, + inner_content='<skipped message={} />'.format( + XunitFormatter._quote_attribute(reason))) + with self.lock: + self.elements["skips"].append(result) + + def _handle_expected_failure(self, test_event): + """Handles a test that failed as expected. + @param test_event the test event to handle. + """ + if self.options.xfail == XunitFormatter.RM_PASSTHRU: + # This is not a natively-supported junit/xunit + # testcase mode, so it might fail a validating + # test results viewer. + if "bugnumber" in test_event: + bug_id_attribute = 'bug-id={} '.format( + XunitFormatter._quote_attribute(test_event["bugnumber"])) + else: + bug_id_attribute = '' + + result = self._common_add_testcase_entry( + test_event, + inner_content=( + '<expected-failure {}type={} message={} />'.format( + bug_id_attribute, + XunitFormatter._quote_attribute( + test_event["issue_class"]), + XunitFormatter._quote_attribute( + test_event["issue_message"])) + )) + with self.lock: + self.elements["expected_failures"].append(result) + elif self.options.xfail == XunitFormatter.RM_SUCCESS: + result = self._common_add_testcase_entry(test_event) + with self.lock: + self.elements["successes"].append(result) + elif self.options.xfail == XunitFormatter.RM_FAILURE: + result = self._common_add_testcase_entry( + test_event, + inner_content='<failure type={} message={} />'.format( + XunitFormatter._quote_attribute(test_event["issue_class"]), + XunitFormatter._quote_attribute( + test_event["issue_message"]))) + with self.lock: + self.elements["failures"].append(result) + elif self.options.xfail == XunitFormatter.RM_IGNORE: + pass + else: + raise Exception( + "unknown xfail option: {}".format(self.options.xfail)) + + def _handle_expected_timeout(self, test_event): + """Handles expected_timeout. + @param test_event the test event to handle. + """ + # We don't do anything with expected timeouts, not even report. + pass + + def _handle_unexpected_success(self, test_event): + """Handles a test that passed but was expected to fail. + @param test_event the test event to handle. + """ + if self.options.xpass == XunitFormatter.RM_PASSTHRU: + # This is not a natively-supported junit/xunit + # testcase mode, so it might fail a validating + # test results viewer. + result = self._common_add_testcase_entry( + test_event, + inner_content=("<unexpected-success />")) + with self.lock: + self.elements["unexpected_successes"].append(result) + elif self.options.xpass == XunitFormatter.RM_SUCCESS: + # Treat the xpass as a success. + result = self._common_add_testcase_entry(test_event) + with self.lock: + self.elements["successes"].append(result) + elif self.options.xpass == XunitFormatter.RM_FAILURE: + # Treat the xpass as a failure. + if "bugnumber" in test_event: + message = "unexpected success (bug_id:{})".format( + test_event["bugnumber"]) + else: + message = "unexpected success (bug_id:none)" + result = self._common_add_testcase_entry( + test_event, + inner_content='<failure type={} message={} />'.format( + XunitFormatter._quote_attribute("unexpected_success"), + XunitFormatter._quote_attribute(message))) + with self.lock: + self.elements["failures"].append(result) + elif self.options.xpass == XunitFormatter.RM_IGNORE: + # Ignore the xpass result as far as xUnit reporting goes. + pass + else: + raise Exception("unknown xpass option: {}".format( + self.options.xpass)) + + def _process_test_result(self, test_event): + """Processes the test_event known to be a test result. + + This categorizes the event appropriately and stores the data needed + to generate the final xUnit report. This method skips events that + cannot be represented in xUnit output. + """ + if "status" not in test_event: + raise Exception("test event dictionary missing 'status' key") + + status = test_event["status"] + if status not in self.status_handlers: + raise Exception("test event status '{}' unsupported".format( + status)) + + # Call the status handler for the test result. + self.status_handlers[status](test_event) + + def _common_add_testcase_entry(self, test_event, inner_content=None): + """Registers a testcase result, and returns the text created. + + The caller is expected to manage failure/skip/success counts + in some kind of appropriate way. This call simply constructs + the XML and appends the returned result to the self.all_results + list. + + @param test_event the test event dictionary. + + @param inner_content if specified, gets included in the <testcase> + inner section, at the point before stdout and stderr would be + included. This is where a <failure/>, <skipped/>, <error/>, etc. + could go. + + @return the text of the xml testcase element. + """ + + # Get elapsed time. + test_class = test_event["test_class"] + test_name = test_event["test_name"] + event_time = test_event["event_time"] + time_taken = self.elapsed_time_for_test( + test_class, test_name, event_time) + + # Plumb in stdout/stderr once we shift over to only test results. + test_stdout = '' + test_stderr = '' + + # Formulate the output xml. + if not inner_content: + inner_content = "" + result = ( + '<testcase classname="{}" name="{}" time="{:.3f}">' + '{}{}{}</testcase>'.format( + test_class, + test_name, + time_taken, + inner_content, + test_stdout, + test_stderr)) + + # Save the result, update total test count. + with self.lock: + self.total_test_count += 1 + self.elements["all"].append(result) + + return result + + def _finish_output_no_lock(self): + """Flushes out the report of test executions to form valid xml output. + + xUnit output is in XML. The reporting system cannot complete the + formatting of the output without knowing when there is no more input. + This call addresses notifcation of the completed test run and thus is + when we can finish off the report output. + """ + + # Figure out the counts line for the testsuite. If we have + # been counting either unexpected successes or expected + # failures, we'll output those in the counts, at the risk of + # being invalidated by a validating test results viewer. + # These aren't counted by default so they won't show up unless + # the user specified a formatter option to include them. + xfail_count = len(self.elements["expected_failures"]) + xpass_count = len(self.elements["unexpected_successes"]) + if xfail_count > 0 or xpass_count > 0: + extra_testsuite_attributes = ( + ' expected-failures="{}"' + ' unexpected-successes="{}"'.format(xfail_count, xpass_count)) + else: + extra_testsuite_attributes = "" + + # Output the header. + self.out_file.write( + '<?xml version="1.0" encoding="{}"?>\n' + '<testsuites>' + '<testsuite name="{}" tests="{}" errors="{}" failures="{}" ' + 'skip="{}"{}>\n'.format( + self.text_encoding, + "LLDB test suite", + self.total_test_count, + len(self.elements["errors"]), + len(self.elements["failures"]), + len(self.elements["skips"]), + extra_testsuite_attributes)) + + # Output each of the test result entries. + for result in self.elements["all"]: + self.out_file.write(result + '\n') + + # Close off the test suite. + self.out_file.write('</testsuite></testsuites>\n') + + def _finish_output(self): + """Finish writing output as all incoming events have arrived.""" + with self.lock: + self._finish_output_no_lock() |