const std = #import("std");
const expect = std.testing.expect;
const PinnedArray = std.data_structures.PinnedArray;

const main = fn () *!void {
    var array = [1]u32{0};
    var pinned_array = PinnedArray(u32){
        .pointer = array.&,
        .length = 0,
        .capacity = 1,
    };
    const n = 5;
    pinned_array.append_with_capacity(n);
    try expect(pinned_array.length == 1);
    try expect(pinned_array[0] == n);
}