route/cmd/routed/server_test.go

package main

import (
	"net/http"
	"testing"
)

func TestDirector(t *testing.T) {
	s := &Server{}

	req, err := http.NewRequest("GET", "https://cetacean.club/", nil)
	if err != nil {
		t.Fatal(err)
	}

	req.Header.Add("X-Forwarded-For", "Rick-James")
	req.Header.Add("X-Client-Ip", "56.32.51.84")

	s.Director(req)

	for _, header := range []string{"X-Forwarded-For", "X-Client-Ip"} {
		t.Run(header, func(t *testing.T) {
			val := req.Header.Get(header)
			if val != "" {
				t.Fatalf("expected header %q to have no value, got: %v", header, val)
			}
		})
	}
}