build(aio): move doc-gen stuff from angular.io (#14097)

tools/docs/helpers/test-package.js

@@ -0,0 +1,23 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+const Package = require('dgeni').Package;
+
+module.exports = function testPackage(packageName, mockTemplateEngine) {
+
+  const pkg = new Package('mock_' + packageName, [require('../' + packageName)]);
+
+  // provide a mock log service
+  pkg.factory('log', function() { return require('dgeni/lib/mocks/log')(false); });
+
+  if (mockTemplateEngine) {
+    pkg.factory('templateEngine', function() { return {}; });
+  }
+
+  return pkg;
+};