fix(build): reconfigure babel so it can run jest tests with async/await

__tests__/lib/jest.js

@@ -26,4 +26,8 @@ describe('jest.js', () => {
     const indexWithYaml = require('../test-utils/mocks/index-with-yaml')
     expect(indexWithYaml).toBeTruthy()
   })
+
+  it('should be able to perform an async test', async () => {
+    await Promise.resolve()
+  })
 })

__tests__/test-utils/mocks/index.js

@@ -11,6 +11,10 @@ export default class MockTestComponentUniqueName extends Component {
     test: 'hi'
   }
 
+  doSomeFancyAsyncThingy = async () => {
+    await Promise.resolve('hi')
+  }
+
   /**
    * Render the component.
    */

lib/babel-config.js

@@ -2,12 +2,13 @@ const addExports = require('babel-plugin-add-module-exports')
 const babelEnv = require('@babel/preset-env')
 const flow = require('@babel/preset-flow')
 const react = require('@babel/preset-react')
-const reactRequire = require('babel-plugin-react-require').default
+const istanbul = require('babel-plugin-istanbul')
 const lodash = require('babel-plugin-lodash')
-const reactDisplayName = require('@babel/plugin-transform-react-display-name')
+const reactRequire = require('babel-plugin-react-require').default
 const classProperties = require('@babel/plugin-proposal-class-properties')
 const exportFrom = require('@babel/plugin-proposal-export-namespace-from')
-const istanbul = require('babel-plugin-istanbul')
+const reactDisplayName = require('@babel/plugin-transform-react-display-name')
+const runtime = require('@babel/plugin-transform-runtime')
 
 const browsers = require('./constants').BROWSER_SUPPORT
 
@@ -17,6 +18,7 @@ module.exports = function (env, instrument) {
     classProperties,
     exportFrom,
     lodash,
+    [runtime, { corejs: 2 }],
     reactDisplayName,
     reactRequire
   ]

package.json

@@ -19,12 +19,13 @@
     "mastarm-test": "bin/mastarm-test"
   },
   "scripts": {
-    "cover": "bin/mastarm test --env test --test-environment node --coverage --coverage-paths bin",
+    "cover": "yarn run jest -- --coverage --coverage-paths bin",
     "flow": "bin/mastarm flow",
+    "jest": "bin/mastarm test --run-in-band --env test --test-environment node",
     "lint": "bin/mastarm lint lib __tests__",
     "semantic-release": "semantic-release",
     "pretest": "yarn",
-    "test": "bin/mastarm lint lib __tests__ && bin/mastarm test --run-in-band --env test --test-environment node"
+    "test": "yarn run lint && yarn run flow && yarn run jest"
   },
   "repository": {
     "type": "git",
@@ -48,11 +49,12 @@
     "@babel/plugin-proposal-export-namespace-from": "^7.2.0",
     "@babel/plugin-syntax-dynamic-import": "^7.2.0",
     "@babel/plugin-transform-react-display-name": "^7.2.0",
+    "@babel/plugin-transform-runtime": "^7.5.5",
     "@babel/polyfill": "^7.2.5",
     "@babel/preset-env": "^7.3.4",
     "@babel/preset-flow": "^7.0.0",
     "@babel/preset-react": "^7.0.0",
-    "@babel/runtime": "^7.3.4",
+    "@babel/runtime-corejs2": "^7.5.5",
     "aws-sdk": "^2.414.0",
     "babel-core": "^7.0.0-bridge.0",
     "babel-eslint": "^10.0.1",

yarn.lock

@@ -568,6 +568,16 @@
   dependencies:
     regenerator-transform "^0.13.4"
 
+"@babel/plugin-transform-runtime@^7.5.5":
+  version "7.5.5"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-transform-runtime/-/plugin-transform-runtime-7.5.5.tgz#a6331afbfc59189d2135b2e09474457a8e3d28bc"
+  integrity sha512-6Xmeidsun5rkwnGfMOp6/z9nSzWpHFNVr2Jx7kwoq4mVatQfQx5S56drBgEHF+XQbKOdIaOiMIINvp/kAwMN+w==
+  dependencies:
+    "@babel/helper-module-imports" "^7.0.0"
+    "@babel/helper-plugin-utils" "^7.0.0"
+    resolve "^1.8.1"
+    semver "^5.5.1"
+
 "@babel/plugin-transform-shorthand-properties@^7.2.0":
   version "7.2.0"
   resolved "https://registry.yarnpkg.com/@babel/plugin-transform-shorthand-properties/-/plugin-transform-shorthand-properties-7.2.0.tgz#6333aee2f8d6ee7e28615457298934a3b46198f0"
@@ -690,12 +700,13 @@
     "@babel/plugin-transform-react-jsx-self" "^7.0.0"
     "@babel/plugin-transform-react-jsx-source" "^7.0.0"
 
-"@babel/runtime@^7.3.4":
-  version "7.3.4"
-  resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.3.4.tgz#73d12ba819e365fcf7fd152aed56d6df97d21c83"
-  integrity sha512-IvfvnMdSaLBateu0jfsYIpZTxAc2cKEXEMiezGGN75QcBcecDUKd3PgLAncT0oOgxKy8dd8hrJKj9MfzgfZd6g==
+"@babel/runtime-corejs2@^7.5.5":
+  version "7.5.5"
+  resolved "https://registry.yarnpkg.com/@babel/runtime-corejs2/-/runtime-corejs2-7.5.5.tgz#c3214c08ef20341af4187f1c9fbdc357fbec96b2"
+  integrity sha512-FYATQVR00NSNi7mUfpPDp7E8RYMXDuO8gaix7u/w3GekfUinKgX1AcTxs7SoiEmoEW9mbpjrwqWSW6zCmw5h8A==
   dependencies:
-    regenerator-runtime "^0.12.0"
+    core-js "^2.6.5"
+    regenerator-runtime "^0.13.2"
 
 "@babel/template@^7.0.0", "@babel/template@^7.1.0", "@babel/template@^7.1.2", "@babel/template@^7.2.2":
   version "7.2.2"
@@ -2518,7 +2529,7 @@ copy-descriptor@^0.1.0:
   resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
   integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
 
-core-js@2:
+core-js@2, core-js@^2.6.5:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.9.tgz#6b4b214620c834152e179323727fc19741b084f2"
   integrity sha512-HOpZf6eXmnl7la+cUdMnLvUxKNqLUzJvgIziQ0DiF3JwSImNphIqdGqzj6hIKyX04MmV0poclQ7+wjWvxQyR2A==
@@ -8810,6 +8821,11 @@ regenerator-runtime@^0.12.0:
   resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.12.1.tgz#fa1a71544764c036f8c49b13a08b2594c9f8a0de"
   integrity sha512-odxIc1/vDlo4iZcfXqRYFj0vpXFNoGdKMAUieAlFYO6m/nl5e9KR/beGf41z4a1FI+aQgtjhuaSlDxQ0hmkrHg==
 
+regenerator-runtime@^0.13.2:
+  version "0.13.3"
+  resolved "https://registry.yarnpkg.com/regenerator-runtime/-/regenerator-runtime-0.13.3.tgz#7cf6a77d8f5c6f60eb73c5fc1955b2ceb01e6bf5"
+  integrity sha512-naKIZz2GQ8JWh///G7L3X6LaQUAMp2lvb1rvwwsURe/VXwD6VMfr+/1NuNw3ag8v2kY1aQ/go5SNn79O9JU7yw==
+
 regenerator-transform@^0.13.4:
   version "0.13.4"
   resolved "https://registry.yarnpkg.com/regenerator-transform/-/regenerator-transform-0.13.4.tgz#18f6763cf1382c69c36df76c6ce122cc694284fb"