package server_test

import (
	"strings"
	"testing"

	"git.cloonar.com/cloonar/updns/internal/config"
	"git.cloonar.com/cloonar/updns/internal/server"
)

func TestStartServerUnsupportedProvider(t *testing.T) {
	cfg := &config.Config{
		Server: config.ServerConfig{
			BindAddress: "127.0.0.1:0",
			TLS: config.TLSConfig{
				Enabled: false,
			},
		},
		Upstream: config.UpstreamConfig{
			Provider: "unknown",
		},
		Clients: map[string]config.ClientConfig{},
	}
	err := server.StartServer(cfg)
	if err == nil {
		t.Fatal("expected error for unsupported provider, got nil")
	}
	if !strings.Contains(err.Error(), "unsupported provider") {
		t.Errorf("unexpected error message: %v", err)
	}
}