diff --git a/script.test.js b/script.test.js
new file mode 100644
index 0000000..09de001
--- /dev/null
+++ b/script.test.js
@@ -0,0 +1,53 @@
+// Import required libraries
+const { JSDOM } = require('jsdom');
+const { expect } = require('chai');
+const QRCode = require('qrcode');
+
+// Create a mock DOM environment
+const dom = new JSDOM(`
+
+
+
+
+
+
+
+`);
+
+// Mock DOM functions
+global.document = dom.window.document;
+global.window = dom.window;
+
+// Import the function to be tested
+const generateQR = require('./script');
+
+describe('generateQR function', () => {
+ it('throws an error for non-string input', () => {
+ const inputElement = document.getElementById('text');
+ inputElement.value = '123';
+ expect(() => generateQR()).to.throw('Input must be a string');
+ });
+
+ it('does not throw an error for string input', () => {
+ const inputElement = document.getElementById('text');
+ inputElement.value = 'Hello World';
+ expect(() => generateQR()).not.to.throw();
+ });
+
+ it('does not throw an error when input is trimmed', () => {
+ const inputElement = document.getElementById('text');
+ inputElement.value = ' Hello World ';
+ generateQR();
+ expect(() => generateQR()).not.to.throw();
+ });
+
+ it('calls console.error when an error occurs during QR code generation', () => {
+ const consoleSpy = require('sinon').createStub().named('console.error');
+ const inputElement = document.getElementById('text');
+ inputElement.value = 'Hello World';
+ const qrcodeDiv = document.getElementById('qrcode');
+ qrcodeDiv.style.display = 'none';
+ expect(() => generateQR()).to.throw();
+ expect(consoleSpy.called).to.be.true;
+ });
+});
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