import Stack from "@code/Stack";

test("stack", function() {
    const list = new Stack<number>();

    list.push(5);
    list.push(7);
    list.push(9);

    expect(list.pop()).toEqual(9);
    expect(list.length).toEqual(2);

    list.push(11);
    expect(list.pop()).toEqual(11);
    expect(list.pop()).toEqual(7);
    expect(list.peek()).toEqual(5);
    expect(list.pop()).toEqual(5);
    expect(list.pop()).toEqual(undefined);

    // just wanted to make sure that I could not blow up myself when i remove
    // everything
    list.push(69);
    expect(list.peek()).toEqual(69);
    expect(list.length).toEqual(1);

    //yayaya
});