feat(testing): add playwright setup

.gitignore

@@ -137,6 +137,14 @@ chromatic-build-*.xml
 chromatic-diagnostics*.json
 chromatic.config.json
 
+# Playwright test reports (generated)
+1st-gen/test/playwright-a11y/report/
+2nd-gen/test/playwright-a11y/report/
+
+# Playwright test results (generated)
+playwright-report/
+test-results/
+
 # yarn
 .pnp.*
 .yarn/*

1st-gen/packages/badge/test/badge.a11y.spec.ts

@@ -0,0 +1,101 @@
+/**
+ * Copyright 2025 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+
+import { expect, test } from '@playwright/test';
+import AxeBuilder from '@axe-core/playwright';
+import { gotoStory } from '../../../test/a11y-helpers.js';
+
+/**
+ * Accessibility tests for Badge component
+ *
+ * Tests both ARIA snapshot structure and aXe WCAG compliance
+ */
+
+test.describe('Badge - ARIA Snapshots', () => {
+    test('should have correct accessibility tree for default badge', async ({
+        page,
+    }) => {
+        const badge = await gotoStory(page, 'badge--default', 'sp-badge');
+        const snapshot = await badge.ariaSnapshot();
+
+        expect(snapshot).toBeTruthy();
+        await expect(badge).toMatchAriaSnapshot();
+    });
+
+    test('should handle badge with icon', async ({ page }) => {
+        const badge = await gotoStory(page, 'badge--icons', 'sp-badge');
+        const snapshot = await badge.ariaSnapshot();
+
+        expect(snapshot).toBeTruthy();
+    });
+
+    test('should maintain accessibility with semantic variants', async ({
+        page,
+    }) => {
+        await gotoStory(page, 'badge--semantic', 'sp-badge');
+        const badges = page.locator('sp-badge');
+
+        const count = await badges.count();
+        expect(count).toBeGreaterThan(0);
+
+        // Verify each badge is accessible
+        for (let i = 0; i < count; i++) {
+            const badge = badges.nth(i);
+            const snapshot = await badge.ariaSnapshot();
+            expect(snapshot).toBeTruthy();
+        }
+    });
+});
+
+test.describe('Badge - aXe Validation', () => {
+    test('should not have accessibility violations - default', async ({
+        page,
+    }) => {
+        await gotoStory(page, 'badge--default', 'sp-badge');
+
+        const results = await new AxeBuilder({ page })
+            .withTags(['wcag2a', 'wcag2aa', 'wcag21a', 'wcag21aa'])
+            .analyze();
+
+        expect(results.violations).toEqual([]);
+    });
+
+    test('should not have violations - semantic variants', async ({ page }) => {
+        await gotoStory(page, 'badge--semantic', 'sp-badge');
+
+        const results = await new AxeBuilder({ page })
+            .withTags(['wcag2a', 'wcag2aa', 'wcag21a', 'wcag21aa'])
+            .analyze();
+
+        expect(results.violations).toEqual([]);
+    });
+
+    test('should not have violations - with icon', async ({ page }) => {
+        await gotoStory(page, 'badge--icons', 'sp-badge');
+
+        const results = await new AxeBuilder({ page })
+            .withTags(['wcag2a', 'wcag2aa', 'wcag21a', 'wcag21aa'])
+            .analyze();
+
+        expect(results.violations).toEqual([]);
+    });
+
+    test('should verify color contrast', async ({ page }) => {
+        await gotoStory(page, 'badge--semantic', 'sp-badge');
+
+        const results = await new AxeBuilder({ page })
+            .withRules(['color-contrast'])
+            .analyze();
+
+        expect(results.violations).toEqual([]);
+    });
+});

1st-gen/packages/badge/test/badge.a11y.spec.ts-snapshots/Badge---ARIA-Snapshots-should-have-correct-accessibility-tree-for-default-badge-1.aria.yml

@@ -0,0 +1 @@
+- text: Badge

1st-gen/packages/status-light/test/status-light.a11y.spec.ts

@@ -0,0 +1,111 @@
+/**
+ * Copyright 2025 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+
+import { expect, test } from '@playwright/test';
+import AxeBuilder from '@axe-core/playwright';
+import { gotoStory } from '../../../test/a11y-helpers.js';
+
+/**
+ * Accessibility tests for Status Light component
+ *
+ * Tests both ARIA snapshot structure and aXe WCAG compliance
+ */
+
+test.describe('Status Light - ARIA Snapshots', () => {
+    test('should have correct accessibility tree structure', async ({
+        page,
+    }) => {
+        const statusLight = await gotoStory(
+            page,
+            'statuslight--m',
+            'sp-status-light'
+        );
+
+        const snapshot = await statusLight.ariaSnapshot();
+        expect(snapshot).toBeTruthy();
+        await expect(statusLight).toMatchAriaSnapshot();
+    });
+
+    test('should reflect different sizes', async ({ page }) => {
+        const sizes = ['s', 'm', 'l'];
+
+        for (const size of sizes) {
+            const statusLight = await gotoStory(
+                page,
+                `statuslight--${size}`,
+                'sp-status-light'
+            );
+
+            const snapshot = await statusLight.ariaSnapshot();
+            expect(snapshot).toBeTruthy();
+        }
+    });
+
+    test('should handle disabled state', async ({ page }) => {
+        const statusLight = await gotoStory(
+            page,
+            'statuslight--disabled-true',
+            'sp-status-light'
+        );
+
+        const snapshot = await statusLight.ariaSnapshot();
+        expect(snapshot).toBeTruthy();
+    });
+});
+
+test.describe('Status Light - aXe Validation', () => {
+    test('should not have accessibility violations - medium size', async ({
+        page,
+    }) => {
+        await gotoStory(page, 'statuslight--m', 'sp-status-light');
+
+        const results = await new AxeBuilder({ page })
+            .withTags(['wcag2a', 'wcag2aa', 'wcag21a', 'wcag21aa'])
+            .analyze();
+
+        expect(results.violations).toEqual([]);
+    });
+
+    test('should not have violations - different sizes', async ({ page }) => {
+        const sizes = ['s', 'l'];
+
+        for (const size of sizes) {
+            await gotoStory(page, `statuslight--${size}`, 'sp-status-light');
+
+            const results = await new AxeBuilder({ page })
+                .withTags(['wcag2a', 'wcag2aa', 'wcag21a', 'wcag21aa'])
+                .analyze();
+
+            expect(results.violations).toEqual([]);
+        }
+    });
+
+    test('should not have violations - disabled state', async ({ page }) => {
+        await gotoStory(page, 'statuslight--disabled-true', 'sp-status-light');
+
+        const results = await new AxeBuilder({ page })
+            .withTags(['wcag2a', 'wcag2aa', 'wcag21a', 'wcag21aa'])
+            .analyze();
+
+        expect(results.violations).toEqual([]);
+    });
+
+    test('should verify color contrast', async ({ page }) => {
+        await gotoStory(page, 'statuslight--m', 'sp-status-light');
+
+        const results = await new AxeBuilder({ page })
+            .withRules(['color-contrast'])
+            .analyze();
+
+        expect(results.violations).toEqual([]);
+    });
+});

1st-gen/packages/status-light/test/status-light.a11y.spec.ts-snapshots/Status-Light---ARIA-Snapshots-should-have-correct-accessibility-tree-structure-1.aria.yml

@@ -0,0 +1 @@
+- text: accent

1st-gen/test/a11y-helpers.ts

@@ -0,0 +1,93 @@
+/**
+ * Copyright 2025 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */
+
+import type { Locator, Page } from '@playwright/test';
+
+/**
+ * Wait for a custom element to be fully defined and upgraded.
+ * This is more deterministic than waiting for visibility alone.
+ *
+ * @param page - Playwright page object
+ * @param tagName - Custom element tag name (e.g., 'sp-badge')
+ * @returns Promise that resolves when element is defined
+ */
+export async function waitForCustomElement(
+    page: Page,
+    tagName: string
+): Promise<void> {
+    await page.evaluate((tag) => {
+        return customElements.whenDefined(tag);
+    }, tagName);
+}
+
+/**
+ * Wait for Storybook story to be fully rendered.
+ * More deterministic than arbitrary timeouts.
+ *
+ * @param page - Playwright page object
+ * @param elementSelector - CSS selector for the element to wait for
+ * @returns The located element
+ */
+export async function waitForStoryReady(
+    page: Page,
+    elementSelector: string
+): Promise<Locator> {
+    // Extract tag name from selector (handles 'sp-badge', 'sp-badge.class', etc.)
+    const tagName = elementSelector.split(/[.#\s[\]]/)[0];
+
+    // Step 1: Wait for the custom element to be defined in the registry
+    await waitForCustomElement(page, tagName);
+
+    // Step 2: Wait for Storybook's story rendering to complete
+    await page.waitForFunction(() => {
+        // Check if Storybook has finished rendering
+        const root = document.querySelector('#storybook-root');
+        return root && root.children.length > 0;
+    });
+
+    // Step 3: Locate the element and wait for it to be visible
+    const element = page.locator(elementSelector).first();
+    await element.waitFor({ state: 'visible' });
+
+    // Step 4: Wait for Web Component to be fully upgraded (has shadow root if applicable)
+    await element.evaluate(async (el) => {
+        // If it's a custom element, wait for it to be fully upgraded
+        if (el.tagName.includes('-')) {
+            await customElements.whenDefined(el.tagName.toLowerCase());
+        }
+    });
+
+    return element;
+}
+
+/**
+ * Navigate to a Storybook story and wait for it to be ready.
+ * Combines navigation + deterministic waiting.
+ *
+ * @param page - Playwright page object
+ * @param storyId - Storybook story ID (e.g., 'badge--default')
+ * @param elementSelector - CSS selector for the main element to wait for
+ * @returns The located element
+ */
+export async function gotoStory(
+    page: Page,
+    storyId: string,
+    elementSelector: string
+): Promise<Locator> {
+    // Navigate to story (baseURL is set by Playwright project config)
+    await page.goto(`/iframe.html?id=${storyId}&viewMode=story`, {
+        waitUntil: 'domcontentloaded',
+    });
+
+    // Wait for story to be ready
+    return waitForStoryReady(page, elementSelector);
+}

2nd-gen/package.json

@@ -24,7 +24,12 @@
         "start": "run-p dev:core dev:analyze storybook",
         "storybook": "yarn workspace @adobe/swc storybook",
         "storybook:build": "yarn workspace @adobe/swc storybook:build",
-        "test": "yarn workspace @adobe/swc test"
+        "test": "yarn workspace @adobe/swc test",
+        "test:a11y": "playwright test --config=../playwright.a11y.config.ts",
+        "test:a11y:1st": "playwright test --config=../playwright.a11y.config.ts --project=1st-gen",
+        "test:a11y:2nd": "playwright test --config=../playwright.a11y.config.ts --project=2nd-gen",
+        "test:a11y:report": "playwright show-report test/playwright-a11y/report",
+        "test:a11y:ui": "playwright test --config=../playwright.a11y.config.ts --ui"
     },
     "workspaces": [
         "packages/*"