//test basic indexing
var greeting: string = "hello world";

assert greeting[1] == "e", "basic default index failed (first)";

assert greeting[:] == "hello world", "basic default index failed (first and second)";

assert greeting[::] == "hello world", "basic default index failed (first, second & third)";

assert greeting[0:4] == "hello", "basic indexing failed";



//test basic replacement
greeting[0:4] = "goodnight";

assert greeting == "goodnight world", "basic replacement failed";

//test backwards string
assert greeting[::-1] == "dlrow thgindoog", "backwards string failed";
assert greeting[11:15:-1] == "dlrow", "backwards indexed string failed";


//test string weird manipulation
var numbers = "0123456789";

numbers[::-2] = "abc";

assert numbers == "01234c6b8a", "string weird manipulation failed";


//test indexing with variables
var first = 11;
var second = 15;
var third = -1;

assert greeting[first:second:third] == "dlrow", "indexing with variables failed";


print "All good";