add react-test-renderer to emotion example #524

Author: macintoshhelper

examples/emotion/package.json

@@ -21,6 +21,7 @@
     "emotion-primitives": "^1.0.0-beta.6",
     "react": "^16.4.1",
     "react-primitives": "^0.6.0",
-    "react-sketchapp": "^3.0.0"
+    "react-sketchapp": "^3.0.0",
+    "react-test-renderer": "^16.3.2"
   }
 }