add test-helper cases for config fixture

Author: iezer

test/fixtures/config/input.js

@@ -10,6 +10,10 @@ module.exports = {
     'environment.js': '"ENV"'
   },
   tests: {
+    'helpers': {
+      'resolver.js': 'import config from "../../config/environment";',
+      'start-app.js': 'import config from "my-app/config/environment";'
+    },
     unit: {
       utils: {
         'first-test.js': 'import config from "../../../config/environment";',

test/fixtures/config/output.js

@@ -14,5 +14,11 @@ module.exports = {
   },
   config: {
     'environment.js': '"ENV"'
+  },
+  tests: {
+    'helpers': {
+      'resolver.js': 'import config from "../../config/environment";',
+      'start-app.js': 'import config from "my-app/config/environment";'
+    }
   }
 };