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package goxy

import (
	"io"
	"io/ioutil"
	"net/http"
	"net/http/httptest"
	"testing"
)

const cannary = "hello from backend"

func TestNewServer(t *testing.T) {
	backendServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		io.WriteString(w, cannary)
	}))
	defer backendServer.Close()

	server, err := NewServer("data.gob")
	if err != nil {
		t.Error(err)
	}

	select {
	case err := <-server.Start():
		t.Error(err)
	default:
	}

	if err = Add(Entry{
		ServerName: "localhost",
		Upstream:   backendServer.URL,
	}, ""); err != nil {
		t.Error(err)
	}

	resp, err := http.Get("http://localhost")
	if err != nil {
		t.Error(err)
	}
	defer resp.Body.Close()

	b, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		t.Error(err)
	}

	if string(b) != cannary {
		t.Error("got", string(b), "expected", cannary)
	}
}