Adding compiler option to get tests to load modules properly. See relevant discussion here:

wmonk/create-react-app-typescript#214

Author: mlwilkerson

examples/typescript/tsconfig.test.json

@@ -1,6 +1,7 @@
 {
   "extends": "./tsconfig.json",
   "compilerOptions": {
-    "module": "commonjs"
+    "module": "commonjs",
+    "allowSyntheticDefaultImports": true
   }
 }