package syncx

import (
	"sync"
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
)

func TestTimeoutLimit(t *testing.T) {
	limit := NewTimeoutLimit(2)
	assert.Nil(t, limit.Borrow(time.Millisecond*200))
	assert.Nil(t, limit.Borrow(time.Millisecond*200))
	var wait1, wait2, wait3 sync.WaitGroup
	wait1.Add(1)
	wait2.Add(1)
	wait3.Add(1)
	go func() {
		wait1.Wait()
		wait2.Done()
		assert.Nil(t, limit.Return())
		wait3.Done()
	}()
	wait1.Done()
	wait2.Wait()
	assert.Nil(t, limit.Borrow(time.Second))
	wait3.Wait()
	assert.Equal(t, ErrTimeout, limit.Borrow(time.Millisecond*100))
	assert.Nil(t, limit.Return())
	assert.Nil(t, limit.Return())
	assert.Equal(t, ErrReturn, limit.Return())
}