Skip to content
Open
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
43 changes: 43 additions & 0 deletions script.test.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,43 @@
import { JSDOM } from "jsdom";
import { describe, expect, it } from "jest";

const { JSDOM as dom } = require("jsdom");

describe("generateQR function", () => {
let domElement;

beforeEach(() => {
domElement = new JSDOM(`
<html>
<body>
<input id="text" type="text">
<div id="qrcode"></div>
<button id="generateButton">Generate QR</button>
<script src="script.js"></script>
</body>
</html>
`);
});

afterEach(() => {
domElement.window.document.body.innerHTML = "";
});

it("should call alert when input is empty string with leading/trailing whitespace", () => {
const inputElement = domElement.window.document.getElementById("text");
inputElement.value = " ";
domElement.window.document.body.innerHTML += "<script>generateQR();</script>";
const alertCall = domElement.window.console.mock.calls.length - 1;
expect(domElement.window.console.log).toHaveBeenCalledTimes(alertCall);
expect(domElement.window.console.log).toHaveBeenCalledWith("Please enter text or URL");
});

it("should call alert when input is empty string with no leading/trailing whitespace", () => {
const inputElement = domElement.window.document.getElementById("text");
inputElement.value = "";
domElement.window.document.body.innerHTML += "<script>generateQR();</script>";
const alertCall = domElement.window.console.mock.calls.length - 1;
expect(domElement.window.console.log).toHaveBeenCalledTimes(alertCall);
expect(domElement.window.console.log).toHaveBeenCalledWith("Please enter text or URL");
});
});