/// <summary>
/// Executes the initial testrun using the given testrunner
/// </summary>
/// <param name="testRunner"></param>
/// <param name="options">Stryker options</param>
/// <returns>The duration of the initial testrun</returns>
public InitialTestRun InitialTest(StrykerOptions options, ITestRunner testRunner)
{
var message = testRunner.DiscoverTests() is var total && total.Count == 0 ? "Unable to detect" : total.Count.ToString();
_logger.LogInformation("Total number of tests found: {0}.", message);
_logger.LogInformation("Initial testrun started.");
// Setup a stopwatch to record the initial test duration
var stopwatch = new Stopwatch();
stopwatch.Start();
var initTestRunResult = testRunner.InitialTest();
// Stop stopwatch immediately after testrun
stopwatch.Stop();
// timings
_logger.LogDebug("Initial testrun output: {0}.", initTestRunResult.ResultMessage);
if (!initTestRunResult.FailingTests.IsEmpty)
{
var failingTestsCount = initTestRunResult.FailingTests.Count;
_logger.LogWarning($"{(failingTestsCount == 1 ? "A test is ": $"{failingTestsCount} tests are")} failing. Stryker will continue but outcome will be impacted.");
if (((double)failingTestsCount) / initTestRunResult.RanTests.Count >= .5)
{
throw new InputException("Initial testrun has more than 50% failing tests.", initTestRunResult.ResultMessage);
}
}
