Revert "Remove multiple steps"

This reverts commit eae86a37.

.circleci/config.yml

 
-version: 1
+version: 2
 jobs:
   build:  
     macos:
@@ -15,6 +15,11 @@ jobs:
       - run:
           name: npm install
           command: npm install
+  test:
+    macos:
+      xcode: "10.2.1"
+      parallelism: 3
+    steps:
       - run:
           name: iOS unit tests
           command: 'npm run test-unit-ios'
@@ -24,3 +29,9 @@ jobs:
       - run:
           name: Detox iOS CI
           command: 'npm run test-e2e-ios-release'
+workflows:
+  version: 2
+  build_and_test:
+    jobs:
+      - build
+      - test
\ No newline at end of file