public void CollectAllClasses()
{
var solution = new TestSolution();
var allClasses = solution.CollectAllClasses()
.Select(c => c.Name)
.ToImmutableList();
Assert.AreEqual(6, allClasses.Count);
Assert.IsTrue(allClasses.Contains("q"));
Assert.IsTrue(allClasses.Contains("r"));
Assert.IsTrue(allClasses.Contains("s"));
Assert.IsTrue(allClasses.Contains("t"));
Assert.IsTrue(allClasses.Contains("u"));
Assert.IsTrue(allClasses.Contains("v"));
}
