add simple tests for _examples/mvc/hello-world and session-controller

Former-commit-id: d88a792ba57cd869d2888f41bca6eb3e5b4f7d49

_examples/mvc/hello-world/main.go

@@ -28,7 +28,9 @@ import (
 // what suits you best with Iris, low-level handlers: performance
 // or high-level controllers: easier to maintain and smaller codebase on large applications.
 
-func main() {
+// Of course you can put all these to main func, it's just a separate function
+// for the main_test.go.
+func newApp() *iris.Application {
 	app := iris.New()
 	// Optionally, add two built'n handlers
 	// that can recover from any http-relative panics
@@ -38,6 +40,11 @@ func main() {
 
 	// Register a controller based on the root Router, "/".
 	mvc.New(app).Register(new(ExampleController))
+	return app
+}
+
+func main() {
+	app := newApp()
 
 	// http://localhost:8080
 	// http://localhost:8080/ping

_examples/mvc/hello-world/main_test.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/kataras/iris/httptest"
+)
+
+func TestMVCHelloWorld(t *testing.T) {
+	e := httptest.New(t, newApp())
+
+	e.GET("/").Expect().Status(httptest.StatusOK).
+		ContentType("text/html", "utf-8").Body().Equal("<h1>Welcome</h1>")
+
+	e.GET("/ping").Expect().Status(httptest.StatusOK).
+		Body().Equal("pong")
+
+	e.GET("/hello").Expect().Status(httptest.StatusOK).
+		JSON().Object().Value("message").Equal("Hello Iris!")
+
+	e.GET("/custom_path").Expect().Status(httptest.StatusOK).
+		Body().Equal("hello from the custom handler without following the naming guide")
+}