const std = #import("std");
const Arena = std.Arena;
const concatenate_bytes = std.concatenate_bytes;
const byte_equal = std.byte_equal;
const expect = std.testing.expect;

const main = fn () *!void {
    var arena = try Arena.init(2*1024*1024);
    const concatenation = try concatenate_bytes(arena, .{ "ABC", "DEF" }.&);
    const are_equal = byte_equal(concatenation, "ABCDEF");
    try expect(are_equal);
}