Writing E2E Tests for AG Grid React Tables with Playwright

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159.597,147.945C159.597,129.901 173.345,116.153 194.826,116.153C210.12,116.153 221.118,121.481 229.022,135.4L210.291,147.429C206.166,140.04 201.7,137.119 194.826,137.119C187.78,137.119 183.312,141.587 183.312,147.429C183.312,154.646 187.78,157.568 198.09,162.037L204.104,164.614C224.553,173.379 236.067,182.313 236.067,202.418C236.067,224.072 219.055,235.928 196.2,235.928C173.861,235.928 159.426,225.274 152.381,211.354" style="fill: #000;" /> </g> </g> </svg> <span>Javascript</span> </a> </li> <li> <a href="/tag/react-data-grid/"> <svg class="icon" width="256px" height="228px" viewBox="0 0 256 228" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" preserveAspectRatio="xMidYMid" > <path d="M210.483381,73.8236374 C207.827698,72.9095503 205.075867,72.0446761 202.24247,71.2267368 C202.708172,69.3261098 203.135596,67.4500894 203.515631,65.6059664 C209.753843,35.3248922 205.675082,10.9302478 191.747328,2.89849283 C178.392359,-4.80289661 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C137.751934,34.1806885 139.716356,32.3762092 141.672575,30.673346 C160.572216,14.2257007 178.236518,7.73185406 186.284677,12.3729198 L186.284677,12.3729198 Z M128.000001,90.8080696 C140.624975,90.8080696 150.859926,101.042565 150.859926,113.667995 C150.859926,126.292969 140.624975,136.527922 128.000001,136.527922 C115.375026,136.527922 105.140075,126.292969 105.140075,113.667995 C105.140075,101.042565 115.375026,90.8080696 128.000001,90.8080696 L128.000001,90.8080696 Z" fill="#00D8FF" ></path> </svg> <span>React</span> </a> </li> <li> <a href="/tag/angular/"> <svg class="icon" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 223 236" width="100%" height="100%" > <g clip-path="url(#a)"> <path fill="url(#b)" d="m222.077 39.192-8.019 125.923L137.387 0l84.69 39.192Zm-53.105 162.825-57.933 33.056-57.934-33.056 11.783-28.556h92.301l11.783 28.556ZM111.039 62.675l30.357 73.803H80.681l30.358-73.803ZM7.937 165.115 0 39.192 84.69 0 7.937 165.115Z" ></path> <path fill="url(#c)" d="m222.077 39.192-8.019 125.923L137.387 0l84.69 39.192Zm-53.105 162.825-57.933 33.056-57.934-33.056 11.783-28.556h92.301l11.783 28.556ZM111.039 62.675l30.357 73.803H80.681l30.358-73.803ZM7.937 165.115 0 39.192 84.69 0 7.937 165.115Z" ></path> </g> <defs> <linearGradient id="b" x1="49.009" x2="225.829" y1="213.75" y2="129.722" gradientUnits="userSpaceOnUse" > <stop stop-color="#E40035"></stop> <stop offset=".24" stop-color="#F60A48"></stop> <stop offset=".352" stop-color="#F20755"></stop> <stop offset=".494" stop-color="#DC087D"></stop> <stop offset=".745" stop-color="#9717E7"></stop> <stop offset="1" stop-color="#6C00F5"></stop> </linearGradient> <linearGradient id="c" x1="41.025" x2="156.741" y1="28.344" y2="160.344" gradientUnits="userSpaceOnUse" > <stop stop-color="#FF31D9"></stop> <stop offset="1" stop-color="#FF5BE1" stop-opacity="0"></stop> </linearGradient> <clipPath id="a"><path fill="#fff" d="M0 0h223v236H0z" ></path></clipPath></defs></svg> <span>Angular</span> </a> </li> <li> <a href="/tag/vuejs/"> <svg class="icon" width="100%" height="100%" viewBox="0 0 256 221" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;" > <path d="M0,0L128,220.8L256,0L204.8,0L128,132.48L50.56,0L0,0Z" style="fill:rgb(65,184,131);fill-rule:nonzero;" /> <path d="M50.56,0L128,133.12L204.8,0L157.44,0L128,51.2L97.92,0L50.56,0Z" style="fill:rgb(53,73,94);fill-rule:nonzero;" /> </svg> <span>Vue</span> </a> </li> </ul> </div> </div> </div> </header> <div class="page-wrapper"> <div class="page-inner layout-grid"> <div class="side-bar"> <div> <h3>Quick Links</h3> <ul class="learn-more-list"> <li><a href="https://blog.ag-grid.com/reasons-to-choose-ag-grid-as-your-javascript-datagrid/">Why Use AG Grid?</a></li> <li><a href="https://blog.ag-grid.com/tag/tutorial/">Tutorials</a></li> <li><a href="https://blog.ag-grid.com/friends/">Friends & Collaborators</a></li> <li><a href="https://blog.ag-grid.com/showcase/">Sample Applications</a></li> </ul> <div class="side-bar-recent-posts"> <h3>Recent Posts</h3> <ul class="recent-posts-list"> <article class="content-wrap"> <li class="archive-post__title"> <a href="/whats-new-in-ag-grid-33-1/" class="archive-post"> What's New in AG Grid 33.1 </a> </li> <li class="archive-post__title"> <a href="/whats-new-in-ag-charts-11-1/" class="archive-post"> What's New in AG Charts 11.1 </a> </li> <li class="archive-post__title"> <a href="/end-to-end-testing-for-ag-grid-in-react-with-cypress/" class="archive-post"> End-to-End Testing for AG Grid in React with Cypress </a> </li> <li class="archive-post__title"> <a href="/unit-testing-ag-grid-react-tables-with-react-testing-library-and-vitest/" class="archive-post"> Unit testing AG Grid React Tables with React Testing Library and Vitest </a> </li> <li class="archive-post__title"> <a href="/introducing-our-figma-design-system-sticker-sheets/" class="archive-post"> Introducing Our Figma Design System Sticker Sheets </a> </li> <li class="archive-post__title"> <a href="/writing-e2e-tests-for-ag-grid-react-tables-with-playwright/" class="archive-post"> Writing E2E Tests for AG Grid React Tables with Playwright </a> </li> <li class="archive-post__title"> <a href="/optimizing-large-data-set-visualisations-with-the-m4-algorithm/" class="archive-post"> Optimising Large Data Set Visualisations with the M4 Algorithm </a> </li> <li class="archive-post__title"> <a href="/using-ag-grid-with-next-js-to-build-a-react-table/" class="archive-post"> Using AG Grid with Next.js to Build a React Table </a> </li> <li class="archive-post__title"> <a href="/introducing-long-term-support-for-ag-grid-and-ag-charts/" class="archive-post"> Introducing Long-Term Support (LTS) for AG Grid and AG Charts </a> </li> <li class="archive-post__title"> <a href="/upgrading-to-ag-grid-33/" class="archive-post"> Upgrading To AG Grid 33 </a> </li> </article> </ul> </div> </div> </div> <main class="main-content"> <article class="post-full post tag-react-data-grid tag-how-to tag-tutorial tag-testing "> <header class="post-full-header"> <h1 class="post-full-title">Writing E2E Tests for AG Grid React Tables with Playwright</h1> </header> <section class="post-full-meta"> <ul class="author-list list-style-none"> <li class="author-list-item"> <a href="/author/shadid/" class="author"> <img class="author-profile-image" src="/content/images/size/w100/2024/12/451103427_7799367756855946_4549416648696623054_n.jpg" alt="Shadid Haque" /> <span class="author-name text-secondary font-size-small">Shadid Haque</span> </a> </li> </ul> </section> <section class="post-full-meta"> <time class="post-full-meta-date text-secondary font-size-small" datetime="2025-01-20">20 January 2025</time> <span class="text-secondary font-size-small">  |  </span> <a class="font-size-small" href="/tag/react-data-grid/">React</a> </section> <section class="post-full-content"> <div class="post-content"> <p>This tutorial demonstrates how to write e2e (end-to-end) tests for your <a href="https://www.ag-grid.com/react-table/?ref=blog.ag-grid.com" rel="noreferrer">AG Grid React Table</a> components with <a href="https://playwright.dev/?ref=blog.ag-grid.com" rel="noreferrer">Playwright</a>.</p><p>You can find the complete code for this tutorial in the following <a href="https://github.com/ag-grid/ag-blog-content/tree/main/grid/react/e2e-testing-with-playwright?ref=blog.ag-grid.com" rel="noreferrer">GitHub</a>.</p><h2 id="contents">Contents</h2><ul><li><a href="#project-setup" rel="noreferrer">Project Setup</a><ul><li><a href="#create-a-new-ag-grid-component" rel="noreferrer">Create a new AG Grid Component</a></li><li><a href="#configure-playwright" rel="noreferrer">Configure Playwright</a></li></ul></li><li><a href="#testing-rendering" rel="noreferrer">Test rendering</a><ul><li><a href="#asynchronous-data-loading" rel="noreferrer">Asynchronous data loading</a></li></ul></li><li><a href="#user-interaction-testing" rel="noreferrer">User interaction testing</a><ul><li><a href="#sorting" rel="noreferrer">Sorting</a></li><li><a href="#edit-cell-value" rel="noreferrer">Edit cell value</a></li><li><a href="#filtering" rel="noreferrer">Filtering</a></li></ul></li><li><a href="#accessibility-testing" rel="noreferrer">Accessibility testing</a><ul><li><a href="#accessibility-a11y-checks" rel="noreferrer">Accessibility (<u>a11y</u>) checks</a></li><li><a href="#keyboard-navigation-and-focus" rel="noreferrer">Keyboard navigation and focus</a></li></ul></li><li><a href="#conclusion" rel="noreferrer">Conclusion</a></li></ul><h2 id="project-setup">Project Setup</h2><p>Create a new react project by running the following command:</p><pre><code class="language-sh">npm create vite@latest testing-ag-grid -- --template react-ts</code></pre><p>Change the directory to your newly created app and install the necessary packages with the following command:</p><pre><code class="language-sh">cd testing-ag-grid npm install npm run dev</code></pre><h3 id="create-a-new-ag-grid-component">Create a new AG Grid Component</h3><p>Next, go ahead and create a new AG Grid component in your React application. Run the following command to install AG Grid npm package. </p><pre><code class="language-sh">npm install ag-grid-react</code></pre><p>Next, open the <code>index.css</code> file and delete all the styles and replace all the code in your <code>App.tsx</code> file with the following code:</p><pre><code class="language-jsx">import { useState, useMemo } from "react"; import { AllCommunityModule, ModuleRegistry, ColDef } from "ag-grid-community"; import { AgGridReact } from "ag-grid-react"; export type ICar = { make: string; model: string; price: number; electric: boolean; }; ModuleRegistry.registerModules([AllCommunityModule]); function App() { // Row Data: The data to be displayed. const [rowData, setRowData] = useState<ICar[]>([ { make: "Tesla", model: "Model Y", price: 64950, electric: true }, { make: "Ford", model: "F-Series", price: 33850, electric: false }, { make: "Toyota", model: "Corolla", price: 29600, electric: false }, { make: "Mercedes", model: "EQA", price: 48890, electric: true }, { make: "Fiat", model: "500", price: 15774, electric: false }, { make: "Nissan", model: "Juke", price: 20675, electric: false }, ]); // Column Definitions: Defines & controls grid columns. const [colDefs, setColDefs] = useState<ColDef<ICar>[]>([ { field: "make", editable: true, filter: true }, { field: "model" }, { field: "price", editable: true }, { field: "electric" }, ]); const defaultColDef = useMemo(() => { return { flex: 1 }; }, []);); // Container: Defines the grid's theme & dimensions. return ( <div style={{ width: "100%", height: '100vh' }}> <AgGridReact rowData={rowData} columnDefs={colDefs} defaultColDef={defaultColDef} /> </div> ); } export default App</code></pre><h3 id="configure-playwright">Configure Playwright</h3><p>To configure Playwright, first install the necessary dependencies by running the following command:</p><pre><code class="language-sh">npm install --save-dev @playwright/test</code></pre><p>Next, run the following script in the terminal to setup Playwright for component testing:</p><pre><code class="language-sh">npm init playwright@latest -- --ct</code></pre><p>Follow the prompts in your terminal and select the option based on your project. For simplicity, we are choosing the default options for this tutorial:</p><figure class="kg-card kg-image-card kg-width-wide"><img src="https://blog.ag-grid.com/content/images/2025/01/Screenshot-2025-01-09-171320.png" class="kg-image" alt="Playwright end-to-end test setup for AG Grid React Table" loading="lazy" width="1899" height="416" srcset="https://blog.ag-grid.com/content/images/size/w600/2025/01/Screenshot-2025-01-09-171320.png 600w, https://blog.ag-grid.com/content/images/size/w1000/2025/01/Screenshot-2025-01-09-171320.png 1000w, https://blog.ag-grid.com/content/images/size/w1600/2025/01/Screenshot-2025-01-09-171320.png 1600w, https://blog.ag-grid.com/content/images/2025/01/Screenshot-2025-01-09-171320.png 1899w" sizes="(min-width: 1200px) 1200px"></figure><p>Once the Playwright script finishes running, open up the <code>playwright-ct.config.js</code> file.</p><p>This configuration file sets up Playwright to run tests on the specified browsers, with parallel execution, timeouts, retries, and other settings to control the testing process.</p><p>The auto-generated file may be using <code>require</code> for importing modules. If that is the case, update the file to use <code>import</code> keyword to keep everything consistent. You can use <a href="https://github.com/ag-grid/ag-blog-content/blob/main/grid/react/e2e-testing-with-playwright/playwright-ct.config.js?ref=blog.ag-grid.com" rel="noreferrer">this</a> <a href="https://github.com/ag-grid/ag-blog-content/blob/main/grid/react/e2e-testing-with-playwright/playwright-ct.config.js?ref=blog.ag-grid.com" rel="noreferrer"><code>playwright-ct.config.js</code></a> file as a reference.</p><h2 id="testing-rendering">Testing Rendering</h2><p>To test that the grid renders correctly, create a new file, <code>App.spec.tsx</code>, and add the following code:</p><pre><code class="language-jsx">import { test, expect } from '@playwright/experimental-ct-react'; import App from './App'; test('should render component with AG Grid', async ({ mount }) => { // Mount the component const component = await mount(<App />); // Verify that the AG Grid is rendered by checking for a specific element await expect(component.locator('.ag-root')).toBeVisible(); // Optionally, verify that specific columns are rendered await expect(component.locator('.ag-header-cell-text').nth(0)).toHaveText('Make'); await expect(component.locator('.ag-header-cell-text').nth(1)).toHaveText('Model'); // Optionally, verify that a specific row is rendered await expect(component.locator('.ag-cell').nth(0)).toHaveText('Tesla'); await expect(component.locator('.ag-cell').nth(1)).toHaveText('Model Y'); });</code></pre><p>This test case ensures that the <code>App</code> component renders AG Grid correctly by checking for key elements, including column headers and row data. It confirms that the column headers "Make," "Model," and "Price" are displayed in the correct order. Additionally, it validates that a specific row contains the expected data: "Tesla," "Model Y," and "64950." Together, these checks verify that the grid’s structure and data are rendered as intended.</p><p>Run your test with the following command:</p><pre><code class="language-sh">npm run test-ct</code></pre><figure class="kg-card kg-image-card kg-width-wide"><img src="https://blog.ag-grid.com/content/images/2025/01/Screenshot-2025-01-06-004220.png" class="kg-image" alt="Output of the rendering test" loading="lazy" width="1716" height="652" srcset="https://blog.ag-grid.com/content/images/size/w600/2025/01/Screenshot-2025-01-06-004220.png 600w, https://blog.ag-grid.com/content/images/size/w1000/2025/01/Screenshot-2025-01-06-004220.png 1000w, https://blog.ag-grid.com/content/images/size/w1600/2025/01/Screenshot-2025-01-06-004220.png 1600w, https://blog.ag-grid.com/content/images/2025/01/Screenshot-2025-01-06-004220.png 1716w" sizes="(min-width: 1200px) 1200px"></figure><p>When the test passes, it prints an output similar to the one above.</p><p>You can run the following command to open the HTML report of the test cases which will open up the test report in your browser.</p><pre><code class="language-sh">npx playwright show-report</code></pre><figure class="kg-card kg-image-card"><img src="https://blog.ag-grid.com/content/images/2025/01/Screenshot-2025-01-06-020052.png" class="kg-image" alt="Test report in the browser" loading="lazy" width="1919" height="1079" srcset="https://blog.ag-grid.com/content/images/size/w600/2025/01/Screenshot-2025-01-06-020052.png 600w, https://blog.ag-grid.com/content/images/size/w1000/2025/01/Screenshot-2025-01-06-020052.png 1000w, https://blog.ag-grid.com/content/images/size/w1600/2025/01/Screenshot-2025-01-06-020052.png 1600w, https://blog.ag-grid.com/content/images/2025/01/Screenshot-2025-01-06-020052.png 1919w" sizes="(min-width: 720px) 720px"></figure><p></p><h3 id="asynchronous-data-loading">Asynchronous data loading</h3><p>Most uses of AG Grid will involve fetching data from an API, so let's simulate this by asynchronously loading our <code>rowData</code> with a <code>setTimeout</code>:</p><pre><code class="language-jsx">const [rowData, setRowData] = useState(null); useEffect(() => { // Simulate an asynchronous data fetch (e.g., from an API) const timer = setTimeout(() => { setRowData([ { make: "Tesla", model: "Model Y", price: 64950, electric: true }, { make: "Ford", model: "F-Series", price: 33850, electric: false }, { make: "Toyota", model: "Corolla", price: 29600, electric: false }, { make: "Mercedes", model: "EQA", price: 48890, electric: true }, { make: "Fiat", model: "500", price: 15774, electric: false }, { make: "Nissan", model: "Juke", price: 20675, electric: false }, ]); }, 500); return () => clearTimeout(timer); }, []);</code></pre><p>Next, let's write a test to verify the table is rendered correctly when async data is involved:</p><pre><code class="language-jsx">test("should load data asynchronously and display it in the grid", async ({ mount, page }) => { // 1. Mount the component const component = await mount(<App />); // 2. Check that the default AG Grid loading overlay is visible. // By default, it has the class 'ag-overlay-loading-center'. await expect( component.locator(".ag-overlay-loading-center") ).toBeVisible(); // 3. Check if the first cell contains "Tesla" // This confirms that row data has been rendered. const firstCell = component.locator(".ag-cell").first(); await expect(firstCell).toHaveText("Tesla"); // 4. Check that the loading overlay is no longer visible await expect( component.locator(".ag-overlay-loading-center") ).not.toBeVisible(); } );</code></pre><p>This test verifies that AG Grid's loading overlay initially appears when loading async data. It then checks that the Row Data has been rendered by confirming the first cell contains "Tesla,", and ensures the loading overlay disappears after the data has loaded.</p><h2 id="user-interaction-testing">User interaction testing</h2><p>Playwright can also be used to simulate user interactions. In this section, we will explore several code examples to demonstrate how you can use Playwright to simulate user actions and thoroughly test your grid's behaviour.</p><h3 id="sorting">Sorting</h3><p>Let’s create a test to verify the grid’s sorting functionality. Specifically, this test will check that clicking the price column header correctly sorts the data in both ascending and descending order. To implement this, we’ll expand the <code>App.spec.tsx</code> file with the following code:</p><pre><code class="language-jsx">test('should sort "Make" column ascending and then descending', async ({ mount }) => { // 1. Mount the component const component = await mount(<App />); // 2. Locate the header cell with the text "Make" const priceHeader = component.locator('.ag-header-cell-text', { hasText: 'Price' }); // 3. Click once to sort ascending await priceHeader.click(); // 4. Verify the first cell in the grid is now 'Fiat' // (sorted by ascending "price") const firstItem = await component .locator(`.ag-row[row-index="0"] [col-id="make"]`) .innerText(); await expect(firstItem).toBe('Fiat'); // 5. Click again to sort descending await priceHeader.click(); // 6. Verify the first cell in the grid is now 'Tesla' // (descending by "price") const firstItemDesc = await component .locator(`.ag-row[row-index="0"] [col-id="make"]`) .innerText(); await expect(firstItemDesc).toBe('Tesla'); } );</code></pre><p>In the above code, we use the <a href="https://www.ag-grid.com/react-data-grid/row-object/?ref=blog.ag-grid.com#reference-display-rowIndex" rel="noreferrer"><em><u><code>rowIndex</code></u></em></a> (which reflects the row's current position in the grid's display) to verify the sort order. In this example, we've hardcoded the values we expect to see; a more robust test may loop through the values of each row, and use the Playwright <code>expect(value).toBeLessThanOrEqual()</code> <a href="https://playwright.dev/docs/api/class-genericassertions?ref=blog.ag-grid.com#generic-assertions-to-be-less-than-or-equal" rel="noreferrer">API</a> to validate the sorting functionality.</p><p>It may also be useful to consider using <a href="https://www.ag-grid.com/javascript-data-grid/row-object/?ref=blog.ag-grid.com#reference-data-sourceRowIndex" rel="noreferrer"><em><code>sourceRowIndex</code></em></a> to compare values before and after sorting as this represents the position of a row in the original <a href="https://www.ag-grid.com/react-data-grid/row-ids/?ref=blog.ag-grid.com" rel="noreferrer"><code>rowData</code></a> array and remains constant regardless of sorting, filtering, grouping, or other UI operations.</p><h3 id="edit-cell-value">Edit cell value</h3><p>To test cell editing, modify the column definition in your <code>App.tsx</code> file to make the <code>Make</code> column and <code>Price</code> column editable by adding the <code>editable</code> property:</p><pre><code class="language-jsx">// Column Definitions: Defines & controls grid columns. const [colDefs, setColDefs] = useState([ { field: "make", editable: true }, { field: "model" }, { field: "price", editable: true }, { field: "electric" }, ]);</code></pre><p>And add the following test to <code>App.spec.tsx</code>: </p><pre><code class="language-jsx">test('should allow editing of editable cells and update the data correctly', async ({ mount }) => { // 1. Mount the component const component = await mount(<App />); // 2. Locate the editable cell for "Price" in the first row const priceCell = component.locator('.ag-row[row-index="0"] [col-id="price"]'); // 3. Double-click the cell to activate edit mode await priceCell.dblclick(); // Wait for the input field to appear (AG Grid renders it dynamically) const priceInput = priceCell.locator('input'); await expect(priceInput).toBeVisible(); // 4. Enter a new value into the input field const newPrice = '70000'; await priceInput.fill(newPrice); // Simulate pressing Enter to save the change await priceInput.press('Enter'); // 5. Verify the cell displays the updated value await expect(priceCell).toHaveText(newPrice); } );</code></pre><p>This test verifies the cell editing functionality in an AG Grid by simulating the following user interactions:</p><ol><ol><li>Double clicks on a cell in the first row of the price column</li><li>Inputs "70000" </li><li>Presses “Enter”</li><li>Verifies that the edited cell displays new value correctly</li></ol></ol><h3 id="filtering">Filtering</h3><p>Finally, let's test the filtering functionality. Modify the Column Definition again, this time adding the filter option to the <code>Make</code> column:</p><pre><code class="language-jsx">// Column Definitions: Defines & controls grid columns. const [colDefs, setColDefs] = useState([ { field: "make", editable: true, filter: true }, { field: "model" }, { field: "price", editable: true }, { field: "electric" }, ]); </code></pre><p>Next, add the following test to your <code>App.spec.tsx</code> file:</p><pre><code class="language-jsx">test('should filter data by "Make" using the column filter menu', async ({ mount, page }) => { // 1. Mount the component const component = await mount(<App />); // 2. Wait for AG Grid to be fully rendered await page.waitForSelector('.ag-root'); // 3. Locate and click the filter menu icon for the "Make" column const makeColumnFilterIcon = component.locator('.ag-header-cell[col-id="make"] .ag-header-icon'); await expect(makeColumnFilterIcon).toBeVisible(); await makeColumnFilterIcon.click(); // 4. Use the placeholder locator to fill in "Tesla" const filterInput = component.locator('.ag-filter-body input[placeholder="Filter..."]'); await filterInput.fill('Tesla'); // 5. Verify only one row is visible const rows = component.locator('.ag-center-cols-viewport .ag-row'); await expect(rows).toHaveCount(1); // 6. Check the cell text const makeCell = rows.first().locator('.ag-cell[col-id="make"]'); await expect(makeCell).toHaveText('Tesla'); } );</code></pre><p>The test above simulates user interaction by clicking the filter icon in the "Make" column and entering "Tesla" as the filter value. It then confirms the filtering worked correctly by checking that only one row remains visible and contains "Tesla" in the make column.</p><h2 id="accessibility-testing">Accessibility testing</h2><p>AG Grid provides amongst the best support for <a href="https://www.ag-grid.com/react-data-grid/accessibility/?ref=blog.ag-grid.com" rel="noreferrer">accessibility</a> compared to other grids available on the market today. The final part of this blog post demonstrates how to test this by validating things like ARIA labels and Keyboard navigation, etc... </p><h3 id="accessibility-a11y-checks">Accessibility (<a href="https://www.a11yproject.com/?ref=blog.ag-grid.com"><u>a11y</u></a>) checks</h3><p>Install the <a href="https://github.com/abhinaba-ghosh/axe-playwright?ref=blog.ag-grid.com"><strong><u>axe-playwright</u></strong></a> package using the following command:</p><pre><code class="language-sh">npm install --save-dev axe-playwright</code></pre><p>This library integrates <a href="https://www.deque.com/axe/devtools/chrome-browser-extension/?utm_term=accessibility%20checker%20tool&utm_campaign=&utm_source=adwords&utm_medium=ppc&hsa_src=g&hsa_ad=674934362804&hsa_tgt=kwd-1186988427488&hsa_mt=p&hsa_ver=3&hsa_acc=7854167720&hsa_kw=accessibility%20checker%20tool&hsa_grp=135123751144&hsa_cam=14920961979&hsa_net=adwords&gad_source=1&gclid=CjwKCAiAg8S7BhATEiwAO2-R6oErCiQJwDepUT1yttZ3Kj3dXt-Abmaoea-fvsbuTq1PLtl-WY5oCBoCsLUQAvD_BwE"><strong><u>Deque’s axe-core</u></strong></a> into Playwright tests.</p><p>Create a new file <code>App.a11y.spec.tsx</code> and add the following code:</p><pre><code class="language-jsx">import { test, expect } from '@playwright/experimental-ct-react'; import { injectAxe, getViolations } from 'axe-playwright'; import App from './App'; test('check for accessibility violations', async ({ mount, page }) => { // 1. Mount your React component await mount(<App />); // 2. Wait for AG Grid to load await page.waitForSelector('.ag-root'); await page.waitForSelector( '.ag-overlay-loading-center', { state: 'detached' } ); // 3. Inject Axe on the page await injectAxe(page); // 4. Run the accessibility check on the grid const violations = await getViolations(page, '.ag-root', { detailedReport: true, detailedReportOptions: { html: true }, }); // 5. Check for violations expect(violations.length).toBe(0); } );</code></pre><p>This automated test ensures your AG Grid implementation follows accessibility standards by automatically catching common issues like missing ARIA labels, contrast problems, or improper HTML structure.</p><p>By integrating <strong>axe</strong> scan in your <strong>Playwright</strong> test suite, you can catch many common accessibility pitfalls early.</p><h3 id="keyboard-navigation-and-focus">Keyboard navigation and focus</h3><p>Many users rely on the keyboard for navigation. To ensure a truly accessible experience, it's not enough to check only for automated accessibility violations, keyboard navigation and focus management are equally critical. Let's explore how to test keyboard accessibility in your AG Grid implementation.</p><p>The following code tests keyboard accessibility in a data grid by checking several key interactions:</p><pre><code class="language-jsx">test('should allow keyboard navigation and focus within the grid', async ({ mount, page }) => { // 1. Mount the component const component = await mount(<App />); await page.waitForSelector('.ag-root'); await component.locator('.ag-root').click(); // 2. Press Tab to move focus onto the Make column header await page.keyboard.press('Tab'); const makeHeader = component.locator('.ag-header-cell[col-id="make"]'); // 3. Open the filter pop-up by clicking the filter icon, then close it const makeHeaderFilterIcon = makeHeader.locator('.ag-header-icon'); await makeHeaderFilterIcon.click(); const filterPopup = component.locator('.ag-filter-wrapper'); await expect(filterPopup).toBeVisible(); // Press Escape to close the filter pop-up await page.keyboard.press('Escape'); await expect(filterPopup).toBeHidden(); // 4. Press ArrowDown to move focus from the header to // the first row, "make" cell. await page.keyboard.press('ArrowDown'); const firstRowFirstCell = component.locator('.ag-row[row-index="0"] [col-id="make"]'); await expect(firstRowFirstCell).toBeFocused(); } );</code></pre><p>Here’s the breakdown of the code:</p>  <ul> <li>Initially, the code tests if pressing <kbd>Tab</kbd> moves focus to the first interactive element, which is the "Make" column header.</li> <li>Checks if clicking the filter icon opens a filter popup menu.</li> <li>Verifies that pressing <kbd>Escape</kbd> properly closes this popup menu.</li> <li>Tests if pressing the <kbd>Down Arrow</kbd> key moves focus from the header to the first cell in the "Make" column.</li> <li>Ensures the proper cell gets focused after this keyboard navigation.</li> </ul>  <h2 id="conclusion">Conclusion</h2><p>In this tutorial, we covered essential testing scenarios for testing AG Grid components using Playwright. You can build upon these examples to create more specialized tests for their specific use cases, whether that involves complex data manipulations, custom cell renderers, or advanced filtering scenarios.</p><p>If you’re an enterprise user and need further assistance with testing strategies, please contact us through <a href="https://ag-grid.zendesk.com/hc/en-us?ref=blog.ag-grid.com" rel="noreferrer">Zendesk</a>. </p> </div> </section> <footer class="share-footer"> <span class="share-label text-secondary">Share</span> <a class="share-social-media twitter" href="https://twitter.com/share?text=Writing E2E Tests for AG Grid React Tables with Playwright&url=https://blog.ag-grid.com/writing-e2e-tests-for-ag-grid-react-tables-with-playwright/" onclick="window.open(this.href, 'twitter-share', 'width=550,height=235');return false;" title="Twitter" target="_blank" rel="noopener"><svg width="1092" height="1075" viewBox="0 0 1092 1075" fill="none" xmlns="http://www.w3.org/2000/svg" size="32" 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</div> </article> </main> <aside class="read-next-outer"> <div class="read-next-inner"> <article class="read-next-card" > <header class="read-next-card-header"> <small class="read-next-card-header-sitetitle">— AG Grid Blog —</small> <h3 class="read-next-card-header-title"><a href="/tag/react-data-grid/">React</a></h3> </header> <div class="read-next-divider"><svg class="icon infinity-icon" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" > <style> .infinity-icon { fill: transparent; stroke-width: 1px; } </style> <path d="M13 14.5s2 3 5 3 5.5-2.463 5.5-5.5S21 6.5 18 6.5c-5 0-7 11-12 11C2.962 17.5.5 15.037.5 12S3 6.5 6 6.5s4.5 3.5 4.5 3.5" /></svg></div> <div class="read-next-card-content"> <ul class="list-style-none"> <li><a href="/end-to-end-testing-for-ag-grid-in-react-with-cypress/">End-to-End Testing for AG Grid in React with Cypress</a></li> <li><a href="/unit-testing-ag-grid-react-tables-with-react-testing-library-and-vitest/">Unit testing AG Grid React Tables with React 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/content/images/size/w2000/2024/11/Optimising-JavaScript-Charts-with-the-M4-Algorithm.png 2000w" sizes="(max-width: 1000px) 400px, 700px" src="/content/images/size/w600/2024/11/Optimising-JavaScript-Charts-with-the-M4-Algorithm.png" alt="Optimising Large Data Set Visualisations with the M4 Algorithm" /> </a> <div class="post-card-content"> <a class="post-card-content-link" href="/optimizing-large-data-set-visualisations-with-the-m4-algorithm/"> <header class="post-card-header"> <h2 class="post-card-title">Optimising Large Data Set Visualisations with the M4 Algorithm</h2> </header> <section class="post-card-excerpt"> <p>A deep dive into how we implemented the M4 algorithm to create a line chart that can support over a million data points and maintain 60fps during interactivity.</p> </section> </a> <footer class="post-card-meta"> <ul class="author-list list-style-none"> <li class="author-list-item"> <a href="/author/james/" class="author"> <img class="author-profile-image" 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