Move takeScreenshot() function into a test helper file

jest.config.integ.cjs

@@ -3,6 +3,7 @@ console.log('Jest config file read.');
 module.exports = {
   globalSetup: './test/integration/setup.cjs',
   globalTeardown: './test/integration/teardown.cjs',
+  setupFiles: ['./test/integration/helpers.cjs'],
   testPathIgnorePatterns: ['/node_modules/', 'test/unit'],
   testTimeout: 5000,
 };

test/integration/helpers.cjs

@@ -0,0 +1,11 @@
+const { mkdir, writeFile } = require('node:fs/promises')
+  , path = require('path')
+  ;
+
+global.takeScreenshot = async (driver) => {
+  const dir = './test/screenshots';
+  const fileName = path.relative(process.cwd(), __filename) + ' "' + global.expect.getState().currentTestName + `" ${new Date().toISOString()}.png`;
+  const image = await driver.takeScreenshot();
+  await mkdir(dir, { recursive: true });
+  await writeFile(`${dir}/${fileName.replaceAll('/', '-')}`, image, 'base64');
+};

test/integration/page.test.js

@@ -1,9 +1,7 @@
 const { Builder } = require('selenium-webdriver'),
   chrome = require('selenium-webdriver/chrome.js'),
   chromeOptions = new chrome.Options(),
-  { expect, it } = require('@jest/globals'),
+  { expect, it } = require('@jest/globals');
-  { mkdir, writeFile } = require('node:fs/promises'),
-  path = require('path');
 
 chromeOptions.addArguments('--headless', '--disable-gpu', '--no-sandbox');
 chromeOptions.enableBidi();
@@ -22,11 +20,3 @@ it('loads the page', async () => {
 afterEach(async () => {
   await driver.quit();
 });
-
-async function takeScreenshot(driver) {
-  const dir = './test/screenshots';
-  const fileName = path.relative(process.cwd(), __filename) + ' "' + expect.getState().currentTestName + `" ${new Date().toISOString()}.png`;
-  const image = await driver.takeScreenshot();
-  await mkdir(dir, { recursive: true });
-  await writeFile(`${dir}/${fileName.replaceAll('/', '-')}`, image, 'base64');
-}

test/integration/select.test.js

@@ -2,8 +2,7 @@ const { Builder, By, until } = require('selenium-webdriver'),
   chrome = require('selenium-webdriver/chrome.js'),
   chromeOptions = new chrome.Options(),
   { expect, it } = require('@jest/globals'),
-  { mkdir, writeFile, readFile } = require('node:fs/promises'),
+  { readFile } = require('node:fs/promises'),
-  path = require('path'),
   { HttpResponse } = require('selenium-webdriver/devtools/networkinterceptor');
 
 chromeOptions.addArguments('--headless', '--disable-gpu', '--no-sandbox');
@@ -182,11 +181,3 @@ it('selects a trooper by clicking on its record and deselects it by clicking on
 afterEach(async () => {
   await driver.quit();
 });
-
-async function takeScreenshot(driver) {
-  const dir = './test/screenshots';
-  const fileName = path.relative(process.cwd(), __filename) + ' "' + expect.getState().currentTestName + `" ${new Date().toISOString()}.png`;
-  const image = await driver.takeScreenshot();
-  await mkdir(dir, { recursive: true });
-  await writeFile(`${dir}/${fileName.replaceAll('/', '-')}`, image, 'base64');
-}