Set test path directory correctly

Author: beefancohen

package.json

@@ -34,7 +34,7 @@
     "babel-polyfill": "^6.16.0",
     "babel-preset-es2015": "^6.14.0",
     "coveralls": "^2.11.8",
-    "eslint": "^3.12.0",
+    "eslint": "^3.12.2",
     "eslint-config-airbnb-base": "^11.0.0",
     "eslint-plugin-import": "^2.2.0",
     "jest": "^18.1.0",
@@ -59,6 +59,9 @@
     "coverageReporters": [
       "lcov"
     ],
-    "coverageDirectory": "reports"
+    "coverageDirectory": "reports",
+    "testPathDirs": [
+      "<rootDir>/__tests__"
+    ]
   }
 }