/// <summary>
/// Executes the mutation test session for the given test project.
/// Algorithm:
/// 1. Build project
/// 2. Calculate for each test which mutations they cover.
/// 3. Rebuild to remove injected code.
/// 4. Run test session.
/// 4a. Generate optimized test runs.
/// 5. Build report.
/// </summary>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public async Task <TestProjectReportModel> Test(MutationSessionProgressTracker progressTracker,
CancellationToken cancellationToken = default)
{
// Build project
progressTracker.LogBeginPreBuilding();
var projectInfo = await BuildProject(progressTracker, _testProjectPath);
progressTracker.LogEndPreBuilding();
// Copy project N times
progressTracker.LogBeginProjectDuplication(_parallel);
var testProjectCopier = new TestProjectDuplicator(Directory.GetParent(projectInfo.AssemblyPath).FullName);
var duplications = testProjectCopier.MakeInitialCopies(projectInfo, _parallel);
// Begin code coverage on first project.
var duplicationPool = new TestProjectDuplicationPool(duplications);
var coverageProject = duplicationPool.TakeTestProject();
var coverageProjectInfo = GetTestProjectInfo(coverageProject, projectInfo);
// Measure the test coverage
progressTracker.LogBeginCoverage();
PrepareAssembliesForCodeCoverage(coverageProjectInfo);
var coverageTimer = new Stopwatch();
coverageTimer.Start();
var coverage = await RunCoverage(coverageProject.TestProjectFile.FullFilePath(), cancellationToken);
coverageTimer.Stop();
var timeout = _createTimeOut(coverageTimer);
GC.Collect();
GC.WaitForPendingFinalizers();
coverageProject.MarkAsFree();
// Start test session.
var testsPerMutation = GroupMutationsWithTests(coverage);
return(StartMutationTestSession(coverageProjectInfo, testsPerMutation, progressTracker,
timeout, duplicationPool));
}
