def testPullChangelogs(self, mock_fn):
change_log_rev1_dict = {
'author': {
'name':
'*****@*****.**',
'email':
'*****@*****.**',
'time':
datetime.strptime('Wed Jun 11 19:35:32 2014',
'%a %b %d %H:%M:%S %Y'),
},
'committer': {
'name':
'*****@*****.**',
'email':
'*****@*****.**',
'time':
datetime.strptime('Wed Jun 11 19:35:32 2014',
'%a %b %d %H:%M:%S %Y'),
},
'message':
'Cr-Commit-Position: refs/heads/master@{#175976}',
'commit_position':
175976,
'touched_files': [{
'new_path': 'added_file.js',
'change_type': 'add',
'old_path': '/dev/null'
}],
'commit_url':
'https://chromium.googlesource.com/chromium/src.git/+log/rev0',
'code_review_url':
None,
'revision':
'rev1',
'reverted_revision':
None,
'review_server_host':
None,
'review_change_id':
None,
}
change_log_rev1 = ChangeLog.FromDict(change_log_rev1_dict)
mock_fn.return_value = [change_log_rev1]
expected_change_logs = {'rev1': change_log_rev1}
change_logs = git.PullChangeLogs('rev0', 'rev1')
self.assertEqual(expected_change_logs, change_logs)
def GetSuspectedCulprits(self, project_api, context, build,
first_failures_in_current_build):
failure_info = project_api.GetTestFailureInfo(
context, build, first_failures_in_current_build)
# Projects that support heuristic analysis must implement GetFailureInfo
if not failure_info:
return None
signals = project_api.ExtractSignalsForTestFailure(failure_info)
change_logs = git.PullChangeLogs(
first_failures_in_current_build['last_passed_build']['commit_id'],
context.gitiles_id)
deps_info = deps.ExtractDepsInfo(failure_info, change_logs)
return project_api.HeuristicAnalysisForTest(failure_info, change_logs,
deps_info, signals)
def HeuristicAnalysisForTest(heuristic_params):
"""Identifies culprit CL.
Args:
heuristic_params (TestHeuristicAnalysisParameters): A structured object
with 2 fields:
failure_info (TestFailureInfo): An object of failure info for the
current failed build.
build_completed (bool): If the build is completed.
Returns:
A TestHeuristicAnalysisOutput object with information about
failure_info and heuristic_result.
"""
failure_info = heuristic_params.failure_info
master_name = failure_info.master_name
builder_name = failure_info.builder_name
build_number = failure_info.build_number
# 1. Detects first failed builds for failed test step, updates failure_info.
failure_info = ci_failure.CheckForFirstKnownFailure(
master_name, builder_name, build_number, failure_info)
# Checks first failed builds for each failed test.
ci_test_failure.CheckFirstKnownFailureForSwarmingTests(
master_name, builder_name, build_number, failure_info)
analysis = WfAnalysis.Get(master_name, builder_name, build_number)
analysis.failure_info = failure_info.ToSerializable()
analysis.put()
# Lacking chromium_revision indicates something is wrong in Findit,
assert failure_info.chromium_revision, (
'No end_revision when pulling change logs.')
# 2. Extracts failure signal.
signals = extract_test_signal.ExtractSignalsForTestFailure(
failure_info, FinditHttpClient())
# 3. Gets change_logs.
change_logs = git.PullChangeLogs(
ci_failure.GetGoodRevision(failure_info), failure_info.chromium_revision)
# 4. Gets deps info.
deps_info = deps.ExtractDepsInfo(failure_info, change_logs)
# 5. Analyzes the test failure using information collected above.
heuristic_result, suspected_cls = AnalyzeTestFailure(
failure_info, change_logs, deps_info, signals)
# Save results and other info to analysis.
build_failure_analysis.SaveAnalysisAfterHeuristicAnalysisCompletes(
master_name, builder_name, build_number, heuristic_result, suspected_cls)
# Save suspected_cls to data_store.
build_failure_analysis.SaveSuspectedCLs(
suspected_cls, failure_info.master_name, failure_info.builder_name,
failure_info.build_number, failure_info.failure_type)
# Monitors analysis status change.
# Only record one metric for each analysis.
RecordTestFailureAnalysisStateChange(master_name, builder_name,
analysis_status.COMPLETED,
analysis_approach_type.HEURISTIC)
return TestHeuristicAnalysisOutput(
failure_info=failure_info,
heuristic_result=TestHeuristicResult.FromSerializable(heuristic_result))
def testPullChangelogsNoStartRevision(self):
self.assertEqual({}, git.PullChangeLogs(None, 'rev1'))