gravity-lang/test/unittest/string/upper_lower_method_non_alpha.gravity

#unittest {
	name: "upper() and lower methods for string -- non alpha tests";
	error: NONE;
	result: true;
};

func main () {
	var s = "Hello, World!"

	// Full string
	var a = s.upper() == "HELLO, WORLD!"
	if (a == false) { System.print("a) failed"); return false }

	var b = s.lower() == "hello, world!"
	if (b == false) { System.print("b) failed"); return false }

	// Single integer or string -- upper
	var c = s.upper(5) == s
	if (c == false) { System.print("c) failed"); return false }

	// Single integer or string -- lower
	var d = s.lower(5) == s
	if (d == false) { System.print("d) failed"); return false }

	return true
}