added function-builder test

Signed-off-by: Antonio Mendoza Pérez <antmendoza@gmail.com>

Author: antmendoza

src/lib/builders/function-builder.ts

@@ -28,7 +28,7 @@ function functionBuildingFn(data: Specification.Function): () => Specification.F
   return () => {
     const model = new Specification.Function(data);
 
-    //set the value from coming from data
+    //set the value coming from data
     model.type = data.type;
 
     validate('Function', model);

src/lib/builders/workflow-builder.ts

@@ -28,7 +28,7 @@ function workflowBuildingFn(data: Specification.Workflow): () => Specification.W
   return () => {
     const model = new Specification.Workflow(data);
 
-    //set the value from coming from data
+    //set the value coming from data
     model.expressionLang = data.expressionLang;
 
     validate('Workflow', model);

tests/lib/builders/function-builder.spec.ts

@@ -0,0 +1,25 @@
+/*
+ * Copyright 2021-Present The Serverless Workflow Specification Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+import { functionBuilder } from '../../../src/lib/builders/function-builder';
+
+describe('function ', () => {
+  it('should build an object without default type', () => {
+    const fn = functionBuilder().name('function').operation('operation').build();
+
+    expect(fn.type).toBeUndefined();
+  });
+});