Use Jest DOM and Testing Library ESLint plugins

Author: nickserv

packages/eslint-config-react-app/index.js

@@ -30,6 +30,8 @@ module.exports = {
 
   plugins: ['import', 'flowtype', 'jsx-a11y', 'react', 'react-hooks'],
 
+  extends: ['plugin:jest-dom/recommended', 'plugin:testing-library/react'],
+
   env: {
     browser: true,
     commonjs: true,

packages/eslint-config-react-app/package.json

@@ -21,9 +21,11 @@
     "eslint": "6.x",
     "eslint-plugin-flowtype": "3.x || 4.x",
     "eslint-plugin-import": "2.x",
+    "eslint-plugin-jest-dom": "1.x",
     "eslint-plugin-jsx-a11y": "6.x",
     "eslint-plugin-react": "7.x",
-    "eslint-plugin-react-hooks": "1.x || 2.x"
+    "eslint-plugin-react-hooks": "1.x || 2.x",
+    "eslint-plugin-testing-library": "1.x"
   },
   "dependencies": {
     "confusing-browser-globals": "^1.0.9"

packages/react-scripts/package.json

@@ -48,9 +48,11 @@
     "eslint-loader": "3.0.3",
     "eslint-plugin-flowtype": "4.6.0",
     "eslint-plugin-import": "2.20.1",
+    "eslint-plugin-jest-dom": "1.3.0",
     "eslint-plugin-jsx-a11y": "6.2.3",
     "eslint-plugin-react": "7.19.0",
     "eslint-plugin-react-hooks": "^1.6.1",
+    "eslint-plugin-testing-library": "1.3.2",
     "file-loader": "4.3.0",
     "fs-extra": "^8.1.0",
     "html-webpack-plugin": "4.0.0-beta.11",