enum Color { red blue green } fn test_enum() { assert Color.red == Color.red assert Color.blue == Color.blue assert Color.green == Color.green assert Color.red == .red assert Color.blue == .blue assert Color.green == .green assert Color.red != Color.blue assert Color.red != Color.green assert Color.blue != Color.green mut color := Color.red assert color == Color.red color = .green assert color == Color.green } fn test_in() { color := Color.red num := 3 assert color in [.red, .green] }