Update for testing functions.

examples/tutorial/hello/go/func.go

@@ -14,7 +14,10 @@ type Person struct {
 func main() {
 	p := &Person{Name: "World"}
 	json.NewDecoder(os.Stdin).Decode(p)
-	fmt.Printf("Hello %v!\n", p.Name)
+	// fmt.Printf("Hello %v!\n", p.Name)
+	mapD := map[string]string{"message": fmt.Sprintf("Hello %s", p.Name)}
+	mapB, _ := json.Marshal(mapD)
+	fmt.Println(string(mapB))
 
 	log.Println("---> stderr goes to the server logs.")
 	log.Println("---> LINE 2")

examples/tutorial/hello/go/test.json

@@ -0,0 +1,26 @@
+{
+    "tests": [
+        {
+            "input": {
+                "body": {
+                    "name": "Johnny"
+                }
+            },
+            "output": {
+                "body": {
+                    "message": "Hello Johnny"
+                }
+            }
+        },
+        {
+            "input": {
+                "body": ""
+            },
+            "output": {
+                "body": {
+                    "message": "Hello World"
+                }
+            }
+        }
+    ]
+}