// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
 

package context

import (
  "testing"
  "feudal/message"
)

func setupQueue() *Queue {
  q := NewQueue()
  return q
}

func setupBufferedQueue(size int) *Queue {
  return NewBufferedQueue(size)
}

func TestNewQueue(t *testing.T) {
  q := setupQueue()
  if q == nil {
    t.Errorf("Failed creating new queue")
  }
}

func TestNewBufferedQueue(t *testing.T) {
  q := setupBufferedQueue(10)
  if q == nil {
    t.Errorf("Failed creating new buffered queue")
  } 
}

func TestQueueAdd(t *testing.T) {
  q := setupQueue()
  var result message.Envelope
  var testDispatcher DispatchReceiveFunc = func(m message.Envelope, r message.Receiver) { result = m }

  q.Start(testDispatcher, nil)
  q.Add(message.NewAnonymous(""))
  if result.Body().(string) != "" {
    t.Errorf("Failed receiving queued message")
  }
}

func TestQueueRemove(t *testing.T) {
  q := setupBufferedQueue(1)
  q.Add(message.NewAnonymous(""))
  result := q.Remove()
  if result.Body().(string) != "" {
    t.Errorf("Failed removing queued message")
  }
}

func TestQueueMetrics(t *testing.T) {
  q := setupBufferedQueue(1)
  q.Add(message.NewAnonymous(""))
  if q.Len() != 1 {
    t.Errorf("Failed checking queue length")
  }
}