/// <summary>
/// Initializes a new instance of the DataManager type.
/// </summary>
/// <param name="harness">The unit test harness instance.</param>
private DataManager(UnitTestHarness harness)
{
_d = new TestRunData(harness);
_h = harness;
_assemblyData = new Dictionary<IAssembly, TestAssemblyData>(2);
_classData = new Dictionary<ITestClass, TestClassData>(50);
_methodData = new Dictionary<ITestMethod, TestMethodData>(300);
}