private Tuple <ISet <ITestMethod>, ISet <ITestMethod> > GetSelectedAndKnownTestCases()
{
if (!_versionManager.IsPreviousVersionsAvailable())
{
return(new Tuple <ISet <ITestMethod>, ISet <ITestMethod> >(new HashSet <ITestMethod>(), new HashSet <ITestMethod>()));
}
var storedCoverage = _coverageData.GetStored();
var differences = new HashSet <IMethodChange>();
var types = new List <TypeDefinition>();
_versionManager.GetPreviousAndCurrentVersions().ToList().ForEach(tuple =>
{
string previous = tuple.Item1, current = tuple.Item2;
differences.UnionWith(new ModuleDifferencer(previous, current).GetDifferences());
types.AddRange(ModuleDefinition.ReadModule(previous).Types);
});
var classDiagram = new ClassDiagram(types);
var acd = new AffectedClassDiagram(storedCoverage, differences, classDiagram);
return(new Tuple <ISet <ITestMethod>, ISet <ITestMethod> >(GetSelectedTestCases(acd), GetKnownTestCases(storedCoverage)));
}