Add tango example (#77)

* add tango example

* fix lint

example/tango.go

@@ -0,0 +1,15 @@
+package example
+
+import (
+	"gitea.com/lunny/tango"
+)
+
+// HelloAction for tango router
+type HelloAction struct {
+	tango.Ctx
+}
+
+// Get will be executed when GET requests
+func (c *HelloAction) Get() string {
+	return "Hello, World"
+}

example/tango_test.go

@@ -0,0 +1,25 @@
+package example
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	"gitea.com/lunny/tango"
+	"github.com/appleboy/gofight/v2"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTangoHelloWorld(t *testing.T) {
+	tan := tango.New(tango.Return())
+	tan.Get("/", new(HelloAction))
+
+	r := gofight.New()
+	r.GET("/").
+		SetDebug(true).
+		Run(tan, func(rp gofight.HTTPResponse, rq gofight.HTTPRequest) {
+			fmt.Println(rp.Code)
+			assert.Equal(t, "Hello, World", rp.Body.String())
+			assert.Equal(t, http.StatusOK, rp.Code)
+		})
+}

go.mod

@@ -3,6 +3,7 @@ module github.com/appleboy/gofight/v2
 go 1.12
 
 require (
+	gitea.com/lunny/tango v0.6.1
 	github.com/astaxie/beego v1.11.1
 	github.com/gin-gonic/gin v1.4.0
 	github.com/gorilla/context v1.1.1 // indirect

go.sum

@@ -1,3 +1,7 @@
+gitea.com/lunny/log v0.0.0-20190322053110-01b5df579c4e h1:r1en/D7xJmcY24VkHkjkcJFa+7ZWubVWPBrvsHkmHxk=
+gitea.com/lunny/log v0.0.0-20190322053110-01b5df579c4e/go.mod h1:uJEsN4LQpeGYRCjuPXPZBClU7N5pWzGuyF4uqLpE/e0=
+gitea.com/lunny/tango v0.6.1 h1:/Fa0TZ5BY6gjWAgo0LzA0tdY8Az/fG6/oTTbFkpmxt0=
+gitea.com/lunny/tango v0.6.1/go.mod h1:ebPnYxaYz9qzByTh3A7604q3tcj0QtATtdwvsAafswU=
 github.com/Knetic/govaluate v3.0.0+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/astaxie/beego v1.11.1 h1:6DESefxW5oMcRLFRKi53/6exzup/IR6N4EzzS1n6CnQ=
 github.com/astaxie/beego v1.11.1/go.mod h1:i69hVzgauOPSw5qeyF4GVZhn7Od0yG5bbCGzmhbWxgQ=