test all in parallel (locally)

package.json

     "test-unit-ios": "node ./scripts/test.unit.ios.js",
     "test-e2e-android": "node ./scripts/test.e2e.android.js",
     "test-e2e-ios": "node ./scripts/test.e2e.ios.js",
-    "test": "yarn run test-js && yarn run test-unit-android && yarn run test-e2e-android && yarn run test-unit-ios && yarn run test-e2e-ios",
+    "test-all": "node ./scripts/test.all.js",
     "test-watch": "BABEL_ENV=test jest --coverage --watch",
     "release": "node ./scripts/release.js"
   },

scripts/test.all.js

+const shellUtils = require('shell-utils');
+
+function run() {
+  // shellUtils.exec.execSync(`yarn run test-js`);
+  // shellUtils.exec.execSync(`yarn run test-unit-android && yarn run test-unit-ios`);
+  shellUtils.exec.exec(`yarn run test-e2e-android`);
+  shellUtils.exec.exec(`yarn run test-e2e-ios`);
+}
+
+run();