E2E testing for any desktop app

import {
    mouse, Button, keyboard, Key, straightTo, centerOf, getActiveWindow
} from "@nut-tree/nut-js";
import { useElementInspector } from "@nut-tree/element-inspector";
import { elements } from "@nut-tree/element-inspector/win";
import { describe, it, expect } from "vitest";

useElementInspector();

describe("Invoice Application", () => {
    it("should create a new invoice", async () => {
        const window = await getActiveWindow();

        // Click "New Invoice" button by its title
        const newBtn = await window.find(
            elements.button({ title: "New Invoice" })
        );
        await mouse.move(straightTo(centerOf(newBtn.region)));
        await mouse.click(Button.LEFT);

        // Find and fill the customer field
        const customerInput = await window.find(
            elements.textInput({ label: "Customer" })
        );
        await mouse.move(straightTo(centerOf(customerInput.region)));
        await mouse.click(Button.LEFT);
        await keyboard.type("Acme Corporation");

        // Save and verify
        await keyboard.pressKey(Key.LeftControl, Key.S);
        const successMsg = await window.find(
            elements.staticText({ title: "Invoice saved" })
        );
        expect(successMsg).toBeDefined();
    });
});