public void NestedLoops()
{
var ints = YieldClass.NestedLoops().ToArray();
AssertEquals(ints.Length, 6);
AssertEquals(ints[0], 0);
AssertEquals(ints[1], 1);
AssertEquals(ints[2], 0);
AssertEquals(ints[3], 1);
AssertEquals(ints[4], 2);
AssertEquals(ints[5], 1);
}