Add "test-helper" blueprint test

node-tests/blueprints/test-helper-test.js

@@ -0,0 +1,23 @@
+'use strict';
+
+var setupTestHooks     = require('ember-cli-blueprint-test-helpers/lib/helpers/setup');
+var BlueprintHelpers   = require('ember-cli-blueprint-test-helpers/lib/helpers/blueprint-helper');
+var generateAndDestroy = BlueprintHelpers.generateAndDestroy;
+
+describe('Acceptance: ember generate and destroy test-helper', function() {
+  setupTestHooks(this);
+
+  it('test-helper foo', function() {
+    return generateAndDestroy(['test-helper', 'foo'], {
+      files: [
+        {
+          file: 'tests/helpers/foo.js',
+          contains: [
+            "import Ember from 'ember';",
+            'export default Ember.Test.registerAsyncHelper(\'foo\', function(app) {\n\n}'
+          ]
+        }
+      ]
+    });
+  });
+});