public void PuzzleSet_SymmetricExceptWith_Test1()
{
var sut1 = new PuzzleSet(PuzzleSize.NineByNine);
var sut2 = new PuzzleSet(PuzzleSize.NineByNine);
var sut3 = new PuzzleSet(PuzzleSize.NineByNine);
sut1.AddRange(new byte[] { 1, 2, 3 });
sut2.AddRange(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 });
sut3.AddRange(new byte[] { 7, 8, 9 });
sut1.SymmetricExceptWith(sut3);
Assert.Equal(new byte[] { 1, 2, 3, 7, 8, 9 }, sut1);
sut1.SymmetricExceptWith(sut2);
Assert.Equal(new byte[] { 4, 5, 6 }, sut1);
}