package deploy import ( "strings" "testing" ) func TestStartCloudflaredTunnelEmptyURL(t *testing.T) { _, err := StartCloudflaredTunnel("") if err == nil || !strings.Contains(err.Error(), "server URL required") { t.Fatalf("expected URL error, got %v", err) } _, err = StartCloudflaredTunnel(" ") if err == nil { t.Fatal("whitespace-only URL should fail") } }