package channel

import (
	"encoding/json"
	"strings"
	"testing"
)

func TestTheSubjectsNameTheirPublisher(t *testing.T) {
	for got, want := range map[string]string{
		ChannelSubject(Show, "telegram"):    "mesh.seat.channel.accept.show.telegram",
		IntakeSubject(Chosen, "desktop"):    "mesh.seat.intake.event.choice.desktop",
		ProofSubject(CodeProof, "telegram"): "mesh.seat.intake.proof.code.telegram",
	} {
		if got != want {
			t.Errorf("%s, want %s", got, want)
		}
	}
}

// A message's note travels beside its body, and is left out of the encoding when empty, so a channel older
// than it reads every message it read before.
func TestAMessageCarriesItsNoteApart(t *testing.T) {
	raw, _ := json.Marshal(Message{Handle: "h", Title: "t", Body: "b", Note: "Asked by x."})
	if !strings.Contains(string(raw), `"note":"Asked by x."`) {
		t.Fatalf("the note is not encoded: %s", raw)
	}
	raw, _ = json.Marshal(Message{Handle: "h", Title: "t"})
	if strings.Contains(string(raw), "note") {
		t.Fatalf("an empty note is encoded: %s", raw)
	}
}