goji httptest example

goji_httptest_example.go

package main

import (
    "encoding/json"
    "net/http"
    "net/http/httptest"
    "net/url"
    "testing"
    
    "github.com/zenazn/goji/web"
)

type SubtestFunc func(*httptest.Server)

func Subtest(t *testing.T, f SubtestFunc) {
    mux := web.New()
    mux.Post("/", index)
    srv := httptest.NewServer(mux)
    defer srv.Close()

    //run test
    f(srv)
}

type RootIndexResponseJSON struct {
    Text       string  `json:"text"`
}

func TestRoot(t *testing.T) {
    Subtest(t, func(srv *httptest.Server) {
        formData := url.Values{}
        formData.Set("token", "dummy")

        res, err := http.PostForm(srv.URL + "/", formData)
        if err != nil {
            t.Fatalf("got error: %v", err)
        }
        defer res.Body.Close()

        decoder := json.NewDecoder(res.Body)
        var responseJSON RootIndexResponseJSON
        decoder.Decode(&responseJSON)

        if (len([]rune(responseJSON.Text)) == 0) {
            t.Fatalf("expected 'text' parameter with length greater than 0: got '%v'", responseJSON.Text)
        }
    })
}