private void Handler_TestsFailed(object sender, EventArgs e)
{
// one test has failed, we can stop
_logger.LogDebug($"{RunnerId}: At least one test failed, abort current test run.");
((RunEventHandler)sender).CancelRequested = true;
// we cancel the test. Avoid using 'Abort' method, as we use the Aborted status to identify timeouts.
_vsTestConsole.CancelTestRun();
}
public TestRunResult TestMultipleMutants(int?timeoutMs, IReadOnlyList <Mutant> mutants, TestUpdateHandler update)
{
var mutantTestsMap = new Dictionary <int, IList <string> >();
ICollection <TestCase> testCases = null;
if (mutants != null)
{
// if we optimize the number of tests to run
if (_flags.HasFlag(OptimizationFlags.CoverageBasedTest))
{
var needAll = false;
foreach (var mutant in mutants)
{
List <string> tests;
if ((mutant.IsStaticValue && !_flags.HasFlag(OptimizationFlags.CaptureCoveragePerTest)) || mutant.MustRunAgainstAllTests)
{
tests = null;
needAll = true;
}
else
{
tests = mutant.CoveringTests.GetList().Select(t => t.Guid).ToList();
}
mutantTestsMap.Add(mutant.Id, tests);
}
testCases = needAll ? null : mutants.SelectMany(m => m.CoveringTests.GetList()).Distinct().Select(t => _discoveredTests.First(tc => tc.Id.ToString() == t.Guid)).ToList();
_logger.LogDebug($"{RunnerId}: Testing [{string.Join(',', mutants.Select(m => m.DisplayName))}] " +
$"against {(testCases == null ? "all tests." : string.Join(", ", testCases.Select(x => x.FullyQualifiedName)))}.");
if (testCases?.Count == 0)
{
return(new TestRunResult(TestListDescription.NoTest(), TestListDescription.NoTest(), TestListDescription.NoTest(), "Mutants are not covered by any test!"));
}
}
else
{
if (mutants.Count > 1)
{
throw new GeneralStrykerException("Internal error: trying to test multiple mutants simultaneously without 'perTest' coverage analysis.");
}
mutantTestsMap.Add(mutants.FirstOrDefault().Id, new List <string>());
}
}
var expectedTests = testCases?.Count ?? DiscoverNumberOfTests();
void HandleUpdate(IRunResults handler)
{
if (mutants == null)
{
return;
}
var handlerTestResults = handler.TestResults;
var tests = handlerTestResults.Count == DiscoverNumberOfTests()
? TestListDescription.EveryTest()
: new TestListDescription(handlerTestResults.Select(tr => (TestDescription)tr.TestCase));
var failedTest = new TestListDescription(handlerTestResults.Where(tr => tr.Outcome == TestOutcome.Failed)
.Select(tr => (TestDescription)tr.TestCase));
var testsInProgress = new TestListDescription(handler.TestsInTimeout?.Select(t => (TestDescription)t));
var remainingMutants = update?.Invoke(mutants, failedTest, tests, testsInProgress);
if (handlerTestResults.Count >= expectedTests || remainingMutants != false || _aborted)
{
return;
}
// all mutants status have been resolved, we can stop
_logger.LogDebug($"{RunnerId}: Each mutant's fate has been established, we can stop.");
_vsTestConsole.CancelTestRun();
_aborted = true;
}
var testResults = RunTestSession(testCases, GenerateRunSettings(timeoutMs, mutants != null, false, mutantTestsMap), HandleUpdate);
var resultAsArray = testResults.TestResults.ToArray();
var timeout = (!_aborted && resultAsArray.Length < expectedTests);
var ranTests = resultAsArray.Length == DiscoverNumberOfTests() ? TestListDescription.EveryTest() : new TestListDescription(resultAsArray.Select(tr => (TestDescription)tr.TestCase));
var failedTests = resultAsArray.Where(tr => tr.Outcome == TestOutcome.Failed).Select(tr => (TestDescription)tr.TestCase).ToImmutableArray();
if (ranTests.Count == 0 && (testResults.TestsInTimeout == null || testResults.TestsInTimeout.Count == 0))
{
_logger.LogDebug($"{RunnerId}: Test session reports 0 result and 0 stuck tests.");
}
var message = string.Join(Environment.NewLine,
resultAsArray.Where(tr => !string.IsNullOrWhiteSpace(tr.ErrorMessage))
.Select(tr => tr.ErrorMessage));
var failedTestsDescription = new TestListDescription(failedTests);
var timedOutTests = new TestListDescription(testResults.TestsInTimeout?.Select(t => (TestDescription)t));
return(timeout ? TestRunResult.TimedOut(ranTests, failedTestsDescription, timedOutTests, message) : new TestRunResult(ranTests, failedTestsDescription, timedOutTests, message));
}
public TestRunResult TestMultipleMutants(ITimeoutValueCalculator timeoutCalc, IReadOnlyList <Mutant> mutants, TestUpdateHandler update)
{
var mutantTestsMap = new Dictionary <int, ITestGuids>();
var needAll = true;
ICollection <Guid> testCases;
int?timeOutMs = timeoutCalc?.DefaultTimeout;
if (mutants != null)
{
// if we optimize the number of tests to run
if (_options.OptimizationMode.HasFlag(OptimizationModes.CoverageBasedTest))
{
needAll = false;
foreach (var mutant in mutants)
{
ITestListDescription tests;
if ((mutant.IsStaticValue && !_options.OptimizationMode.HasFlag(OptimizationModes.CaptureCoveragePerTest)) || mutant.MustRunAgainstAllTests)
{
tests = TestsGuidList.EveryTest();
needAll = true;
}
else
{
tests = mutant.CoveringTests;
}
mutantTestsMap.Add(mutant.Id, tests);
}
testCases = needAll ? null : mutants.SelectMany(m => m.CoveringTests.GetGuids()).ToList();
_logger.LogTrace($"{RunnerId}: Testing [{string.Join(',', mutants.Select(m => m.DisplayName))}] " +
$"against {(testCases == null ? "all tests." : string.Join(", ", testCases))}.");
if (testCases?.Count == 0)
{
return(new TestRunResult(TestsGuidList.NoTest(), TestsGuidList.NoTest(), TestsGuidList.NoTest(), "Mutants are not covered by any test!", TimeSpan.Zero));
}
if (timeoutCalc != null && testCases != null)
{
// compute time out
var duration = (int)testCases.Select(id => _vsTests[id].InitialRunTime.TotalMilliseconds).Sum();
timeOutMs = timeoutCalc.CalculateTimeoutValue(duration);
}
}
else
{
if (mutants.Count > 1)
{
throw new GeneralStrykerException("Internal error: trying to test multiple mutants simultaneously without 'perTest' coverage analysis.");
}
mutantTestsMap.Add(mutants[0].Id, TestsGuidList.EveryTest());
testCases = null;
}
}
else
{
testCases = null;
}
var numberTestCases = testCases == null ? 0 : testCases.Count;
var expectedTests = needAll ? DiscoverTests().Count : numberTestCases;
void HandleUpdate(IRunResults handler)
{
var handlerTestResults = handler.TestResults;
if (mutants == null)
{
return;
}
var tests = handlerTestResults.Count == DiscoverTests().Count
? (ITestGuids)TestsGuidList.EveryTest()
: new WrappedGuidsEnumeration(handlerTestResults.Select(t => t.TestCase.Id));
var failedTest = new WrappedGuidsEnumeration(handlerTestResults.Where(tr => tr.Outcome == TestOutcome.Failed)
.Select(t => t.TestCase.Id));
var timedOutTest = new WrappedGuidsEnumeration(handler.TestsInTimeout?.Select(t => t.Id));
var remainingMutants = update?.Invoke(mutants, failedTest, tests, timedOutTest);
if (handlerTestResults.Count >= expectedTests || remainingMutants != false || _aborted)
{
return;
}
// all mutants status have been resolved, we can stop
_logger.LogDebug($"{RunnerId}: Each mutant's fate has been established, we can stop.");
_vsTestConsole.CancelTestRun();
_aborted = true;
}
_logger.LogDebug("Using {0} ms as testrun timeout", timeOutMs.ToString() ?? "no");
var testResults = RunTestSession(mutantTestsMap, needAll, GenerateRunSettings(timeOutMs, mutants != null, false, mutantTestsMap), HandleUpdate);
return(BuildTestRunResult(testResults, expectedTests));
}