another try

.travis.yml

@@ -38,8 +38,8 @@ script:
   - yarn run test-js
   - yarn run test-android
   - yarn run test-ios
+  - ./scripts/travis.sh
   - yarn run release
-  - detoxAppBuildPath="ios/DerivedData/playground/Build/Products/Release_Detox-iphonesimulator/playground.app" BABEL_ENV=test ./node_modules/mocha/bin/mocha e2e --timeout 120000 --recursive --compilers js:babel-register
   - set +e
 
 after_script:

scripts/travis.sh

@@ -0,0 +1,5 @@
+#!/bin/bash -e
+
+cd playground
+detoxAppBuildPath="ios/DerivedData/playground/Build/Products/Release_Detox-iphonesimulator/playground.app" BABEL_ENV=test ./node_modules/mocha/bin/mocha e2e --timeout 120000 --recursive --compilers js:babel-register
+cd ..