test: configure playwright for e2e tests

example/e2e/.eslintrc.json

@@ -1,10 +0,0 @@
-{
-  "settings": {
-    "import/core-modules": [
-      "detox",
-      "detox/runners/jest/adapter",
-      "detox/runners/jest/specReporter"
-    ]
-  },
-  "env": { "jest": true, "jasmine": true }
-}

example/e2e/__integration_tests__/Link.test.tsx

@@ -0,0 +1,44 @@
+import { page } from '../config/setup-playwright';
+
+beforeEach(async () => {
+  await page.click('[data-testid=LinkComponent]');
+});
+
+it('loads the article page', async () => {
+  expect(await page.evaluate(() => location.pathname + location.search)).toBe(
+    '/link-component/Article?author=Gandalf'
+  );
+  expect(
+    ((await page.accessibility.snapshot()) as any)?.children?.find(
+      (it: any) => it.role === 'heading'
+    )?.name
+  ).toBe('Article by Gandalf');
+});
+
+it('goes to the album page and goes back', async () => {
+  await page.click('[href="/link-component/Album"]');
+
+  expect(await page.evaluate(() => location.pathname + location.search)).toBe(
+    '/link-component/Album'
+  );
+
+  expect(
+    ((await page.accessibility.snapshot()) as any)?.children?.find(
+      (it: any) => it.role === 'heading'
+    )?.name
+  ).toBe('Album');
+
+  await page.click('[aria-label="Article by Gandalf, back"]');
+
+  await page.waitForNavigation();
+
+  expect(await page.evaluate(() => location.pathname + location.search)).toBe(
+    '/link-component/Article?author=Gandalf'
+  );
+
+  expect(
+    ((await page.accessibility.snapshot()) as any)?.children?.find(
+      (it: any) => it.role === 'heading'
+    )?.name
+  ).toBe('Article by Gandalf');
+});

example/e2e/__integration_tests__/index.test.js

@@ -1,9 +0,0 @@
-import { by, element, expect, device } from 'detox';
-
-beforeEach(async () => {
-  await device.reloadReactNative();
-});
-
-it('has dark theme toggle', async () => {
-  await expect(element(by.text('Dark theme'))).toBeVisible();
-});

example/e2e/__integration_tests__/index.test.tsx

@@ -0,0 +1,13 @@
+import { page } from '../config/setup-playwright';
+
+it('loads the example app', async () => {
+  const snapshot = await page.accessibility.snapshot();
+
+  // @ts-ignore
+  expect(snapshot?.children?.find((it) => it.role === 'heading')?.name).toBe(
+    'Examples'
+  );
+  const title = await page.$eval('[role=heading]', (el) => el.textContent);
+
+  expect(title).toBe('Examples');
+});

example/e2e/config.json

@@ -1,6 +0,0 @@
-{
-  "setupFilesAfterEnv": ["./init.js"],
-  "testEnvironment": "node",
-  "reporters": ["detox/runners/jest/streamlineReporter"],
-  "verbose": true
-}

example/e2e/config/setup-playwright.tsx

@@ -0,0 +1,24 @@
+/* eslint-env jest */
+
+import { chromium, Browser, BrowserContext, Page } from 'playwright';
+
+let browser: Browser;
+let context: BrowserContext;
+let page: Page;
+
+beforeAll(async () => {
+  browser = await chromium.launch();
+});
+
+afterAll(async () => {
+  await browser.close();
+});
+
+beforeEach(async () => {
+  context = await browser.newContext();
+  page = await context.newPage();
+
+  await page.goto('http://localhost:3579');
+});
+
+export { browser, context, page };

example/e2e/config/setup-server.tsx

@@ -0,0 +1,8 @@
+import { setup } from 'jest-dev-server';
+
+export default async function () {
+  await setup({
+    command: 'yarn serve -l 3579 web-build',
+    port: 3579,
+  });
+}

example/e2e/config/teardown-server.tsx

@@ -0,0 +1,5 @@
+import { teardown } from 'jest-dev-server';
+
+export default async function () {
+  await teardown();
+}

example/e2e/init.js

@@ -1,28 +0,0 @@
-/* eslint-disable import/no-commonjs */
-
-const detox = require('detox');
-const config = require('../../package.json').detox;
-const adapter = require('detox/runners/jest/adapter');
-const specReporter = require('detox/runners/jest/specReporter');
-
-// Set the default timeout
-jest.setTimeout(120000);
-
-jasmine.getEnv().addReporter(adapter);
-
-// This takes care of generating status logs on a per-spec basis. By default, jest only reports at file-level.
-// This is strictly optional.
-jasmine.getEnv().addReporter(specReporter);
-
-beforeAll(async () => {
-  await detox.init(config);
-}, 300000);
-
-beforeEach(async () => {
-  await adapter.beforeEach();
-});
-
-afterAll(async () => {
-  await adapter.afterAll();
-  await detox.cleanup();
-});

example/jest.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+  testRegex: '/__integration_tests__/.*\\.(test|spec)\\.(js|tsx?)$',
+  globalSetup: './e2e/config/setup-server.tsx',
+  globalTeardown: './e2e/config/teardown-server.tsx',
+  setupFilesAfterEnv: ['./e2e/config/setup-playwright.tsx'],
+};

example/package.json

@@ -8,7 +8,8 @@
     "web": "expo start:web",
     "native": "react-native start",
     "android": "react-native run-android",
-    "ios": "react-native run-ios"
+    "ios": "react-native run-ios",
+    "test": "jest"
   },
   "dependencies": {
     "@expo/vector-icons": "^10.0.0",
@@ -32,10 +33,15 @@
   },
   "devDependencies": {
     "@expo/webpack-config": "^0.11.19",
+    "@types/jest-dev-server": "^4.2.0",
     "@types/react": "^16.9.23",
     "@types/react-native": "^0.60.22",
     "babel-preset-expo": "^8.1.0",
     "expo-cli": "^3.17.18",
+    "jest": "^25.2.7",
+    "jest-dev-server": "^4.4.0",
+    "playwright": "^0.14.0",
+    "serve": "^11.3.0",
     "typescript": "^3.8.3"
   }
 }

example/src/index.tsx

@@ -320,6 +320,7 @@ export default function App() {
                         (name) => (
                           <List.Item
                             key={name}
+                            testID={name}
                             title={SCREENS[name].title}
                             onPress={() => navigation.navigate(name)}
                           />