Update to Jest 19 (#1614)

* Upgrade to Jest 19

* Use testMatch

* Correct version

packages/react-scripts/package.json

@@ -26,7 +26,7 @@
     "autoprefixer": "6.7.7",
     "babel-core": "6.23.1",
     "babel-eslint": "7.1.1",
-    "babel-jest": "18.0.0",
+    "babel-jest": "19.0.0",
     "babel-loader": "7.0.0",
     "babel-preset-react-app": "^2.1.1",
     "babel-runtime": "^6.20.0",
@@ -49,7 +49,7 @@
     "html-webpack-plugin": "2.28.0",
     "http-proxy-middleware": "0.17.3",
     "inquirer": "3.0.6",
-    "jest": "18.1.0",
+    "jest": "19.0.2",
     "object-assign": "4.1.1",
     "postcss-loader": "1.3.3",
     "promise": "7.1.1",

packages/react-scripts/scripts/utils/createJestConfig.js

@@ -25,7 +25,7 @@ module.exports = (resolve, rootDir, isEjecting) => {
     collectCoverageFrom: ['src/**/*.{js,jsx}'],
     setupFiles: [resolve('config/polyfills.js')],
     setupTestFrameworkScriptFile: setupTestsFile,
-    testPathIgnorePatterns: [
+    testMatch: [
       // Ignore the following directories:
       // build
       //   - the build output directory
@@ -37,7 +37,8 @@ module.exports = (resolve, rootDir, isEjecting) => {
       //   - ignore tests in dependencies
       // scripts
       //   - directory generated upon eject
-      '<rootDir>[/\\\\](build|\\.cache|docs|node_modules|scripts)[/\\\\]',
+      '<rootDir>/!(build|docs|node_modules|scripts)/**/__tests__/**/*.js?(x)',
+      '<rootDir>/!(build|docs|node_modules|scripts)/**/?(*.)(spec|test).js?(x)',
     ],
     testEnvironment: 'node',
     testURL: 'http://localhost',