diff --git a/script.test.js b/script.test.js
new file mode 100644
index 0000000..8bef850
--- /dev/null
+++ b/script.test.js
@@ -0,0 +1,62 @@
+import { JSDOM } from 'jsdom';
+import { expect } from 'chai';
+
+const { window } = new JSDOM('');
+globalThis.document = window.document;
+globalThis.console = { error: () => {} };
+
+const QRCode = function() {}
+
+describe('generateQR function', () => {
+ beforeEach(() => {
+ globalThis.document.body.innerHTML = `
+
+
+
+ `;
+
+ globalThis.QRCode = QRCode;
+ });
+
+ it('should display an alert and prevent execution when input is empty', () => {
+ const button = document.getElementById('generateButton');
+ button.click();
+
+ expect(alert).to.have.been.called;
+
+ const inputElement = document.getElementById('text');
+ inputElement.value = 'Hello World';
+ inputElement.dispatchEvent(new globalThis.Event('input'));
+
+ button.click();
+ expect(document.getElementById('qrcode')).not.to.be.empty;
+ });
+
+ it('should throw an error when input is not a string', () => {
+ const inputElement = document.getElementById('text');
+ inputElement.value = 123;
+ const button = document.getElementById('generateButton');
+ button.click();
+
+ expect(globalThis.console.error).to.have.been.called;
+ });
+
+ it('should display an error message when an error occurs while generating the QR code', () => {
+ const inputElement = document.getElementById('text');
+ inputElement.value = 'Hello World';
+ const button = document.getElementById('generateButton');
+ button.click();
+
+ globalThis.console.error = (error) => {
+ expect(error).to.be.an('error');
+ };
+
+ // Simulate an error
+ globalThis.QRCode = function() {
+ throw new Error('Mocked error');
+ };
+
+ button.click();
+ expect(document.getElementById('qrcode')).not.to.be.empty;
+ });
+});
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