package main

import (
	"bytes"
	"testing"
)

func TestRepeater(t *testing.T) {
	r := NewRepeater()

	buf1 := bytes.NewBufferString("buf1")
	r.Join(buf1)
	r.loop()
	if len(r.subscribers) != 1 {
		t.Error("Joining did nothing")
	}
	r.Send([]byte("moo"))
	r.loop()
	if buf1.String() != "buf1moo" {
		t.Error("Client 1 not repeating", buf1)
	}
	
	buf2 := bytes.NewBufferString("buf2")
	r.Join(buf2)
	r.loop()
	r.Send([]byte("bar"))
	r.loop()
	if buf1.String() != "buf1moobar" {
		t.Error("Client 1 not repeating", buf1)
	}
	if buf2.String() != "buf2bar" {
		t.Error("Client 2 not repeating", buf2)
	}
	
	r.Part(buf1)
	r.loop()
	r.Send([]byte("baz"))
	r.loop()
	if buf1.String() != "buf1moobar" {
		t.Error("Client 1 still getting data after part", buf1)
	}
	if buf2.String() != "buf2barbaz" {
		t.Error("Client 2 not getting data after part", buf2)
	}
	
	r.Close()
	if r.loop() {
		t.Error("Closed send didn't terminate loop")
	}
	if r.loop() {
		t.Error("Second loop in terminated channel didn't terminate")
	}
}