Web App Testing – Routes

Testing pertama yang akan kita buat adalah untuk routes.

Buat file baru cmd/web/routes_test.go, masukan kode testing dibawah:

package main

import (
	"net/http"
	"strings"
	"testing"

	"github.com/go-chi/chi/v5"
)

func Test_application_routes(t *testing.T) {
	var registered = []struct {
		route  string
		method string
	}{
		{"/", "GET"},
		{"/static/*", "GET"},
	}

	var app application
	mux := app.routes()

	chiRoutes := mux.(chi.Routes)

	for _, route := range registered {
		//check if the route exists
		if !routeExists(route.route, route.method, chiRoutes) {
			t.Errorf("route %s is not registered", route.route)
		}
	}
}

func routeExists(testRoute, testMethod string, chiRoutes chi.Routes) bool {
	found := false

	_ = chi.Walk(chiRoutes, func(method string, route string, handler http.Handler, middleware ...func(http.Handler) http.Handler) error {
		if strings.EqualFold(method, testMethod) && strings.EqualFold(route, testRoute) {
			found = true
		}
		return nil
	})

	return found
}

Routes yang kita miliki sekarang adalah / dan /static.

Jalankan test dengan perintah berikut.

$ go test ./...

ok      webapp/cmd/web  0.214s

Tips, perintah diatas akan menjalankan semua test dalam current directory dan sub directory.

Sesuai ekspektasi, test berhasil dijalankan.