fuzzTestMinMax

fn fuzzTestMinMax(rng: std.Random, queue_size: usize) !void {
    const gpa = std.testing.allocator;

    const items = try generateRandomSlice(gpa, rng, queue_size);

    var queue: MinHeap = .fromOwnedSlice(items, {});
    defer queue.deinit(gpa);

    var last_min: ?u32 = null;
    var last_max: ?u32 = null;
    var i: usize = 0;
    while (i < queue_size) : (i += 1) {
        if (i % 2 == 0) {
            const next = queue.popMin().?;
            if (last_min) |last| {
                try expect(last <= next);
            }
            last_min = next;
        } else {
            const next = queue.popMax().?;
            if (last_max) |last| {
                try expect(last >= next);
            }
            last_max = next;
        }
    }
}