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queue_test.go
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queue_test.go
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package fpgo
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func TestChannelQueue(t *testing.T) {
var queue Queue[int]
var err error
var result int
var timeout time.Duration
channelQueue := NewChannelQueue[int](3)
queue = channelQueue
err = queue.Offer(1)
assert.Equal(t, nil, err)
err = queue.Offer(2)
assert.Equal(t, nil, err)
err = queue.Offer(3)
assert.Equal(t, nil, err)
err = queue.Offer(4)
assert.NotEqual(t, nil, err)
assert.Equal(t, ErrQueueIsFull, err)
result, err = queue.Poll()
assert.Equal(t, 1, result)
assert.Equal(t, nil, err)
result, err = queue.Poll()
assert.Equal(t, 2, result)
assert.Equal(t, nil, err)
result, err = queue.Poll()
assert.Equal(t, 3, result)
assert.Equal(t, nil, err)
result, err = queue.Poll()
assert.NotEqual(t, 4, result)
assert.NotEqual(t, nil, err)
assert.Equal(t, 0, result)
assert.Equal(t, ErrQueueIsEmpty, err)
result = 0
timeout = 1 * time.Millisecond
go func() {
result, err = channelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, 1, result)
result, err = channelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, 2, result)
result, err = channelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, 3, result)
result, err = channelQueue.TakeWithTimeout(timeout)
assert.NotEqual(t, 4, result)
assert.NotEqual(t, nil, err)
assert.Equal(t, 0, result)
assert.Equal(t, ErrQueueTakeTimeout, err)
}()
go func() {
err = channelQueue.PutWithTimeout(1, timeout)
assert.Equal(t, nil, err)
err = channelQueue.PutWithTimeout(2, timeout)
assert.Equal(t, nil, err)
err = channelQueue.PutWithTimeout(3, timeout)
assert.Equal(t, nil, err)
time.Sleep(3 * timeout / 2)
err = channelQueue.PutWithTimeout(4, timeout)
assert.Equal(t, nil, err)
err = channelQueue.PutWithTimeout(5, timeout)
assert.Equal(t, nil, err)
err = channelQueue.PutWithTimeout(6, timeout)
assert.Equal(t, nil, err)
err = channelQueue.PutWithTimeout(7, timeout)
assert.NotEqual(t, nil, err)
assert.Equal(t, ErrQueuePutTimeout, err)
}()
time.Sleep(2 * timeout)
}
func TestLinkedListQueue(t *testing.T) {
var queue Queue[int]
var stack Stack[int]
var err error
var result int
var timeout time.Duration
linkedListQueue := NewLinkedListQueue[int]()
queue = linkedListQueue
stack = linkedListQueue
concurrentQueue := NewConcurrentQueue[int](queue)
err = queue.Offer(1)
assert.Equal(t, nil, err)
err = queue.Offer(2)
assert.Equal(t, nil, err)
err = queue.Offer(3)
assert.Equal(t, nil, err)
result, err = queue.Poll()
assert.Equal(t, 1, result)
assert.Equal(t, nil, err)
result, err = queue.Poll()
assert.Equal(t, 2, result)
assert.Equal(t, nil, err)
result, err = queue.Poll()
assert.Equal(t, 3, result)
assert.Equal(t, nil, err)
result, err = queue.Poll()
assert.NotEqual(t, 4, result)
assert.NotEqual(t, nil, err)
assert.Equal(t, 0, result)
assert.Equal(t, ErrQueueIsEmpty, err)
err = stack.Push(1)
assert.Equal(t, nil, err)
err = stack.Push(2)
assert.Equal(t, nil, err)
err = stack.Push(3)
assert.Equal(t, nil, err)
result, err = stack.Pop()
assert.Equal(t, 3, result)
assert.Equal(t, nil, err)
result, err = stack.Pop()
assert.Equal(t, 2, result)
assert.Equal(t, nil, err)
result, err = stack.Pop()
assert.Equal(t, 1, result)
assert.Equal(t, nil, err)
result, err = stack.Pop()
assert.NotEqual(t, 4, result)
assert.NotEqual(t, nil, err)
assert.Equal(t, 0, result)
assert.Equal(t, ErrStackIsEmpty, err)
linkedListQueue.KeepNodePoolCount(10)
assert.Equal(t, 10, linkedListQueue.nodeCount)
assert.Equal(t, 10, linkedListQueue.nodePoolFirst.Count())
linkedListQueue.KeepNodePoolCount(2)
assert.Equal(t, 2, linkedListQueue.nodeCount)
assert.Equal(t, 2, linkedListQueue.nodePoolFirst.Count())
linkedListQueue.KeepNodePoolCount(0)
assert.Equal(t, 0, linkedListQueue.nodeCount)
assert.Nil(t, linkedListQueue.nodePoolFirst)
linkedListQueue.KeepNodePoolCount(5)
assert.Equal(t, 5, linkedListQueue.nodeCount)
assert.Equal(t, 5, linkedListQueue.nodePoolFirst.Count())
linkedListQueue.KeepNodePoolCount(3)
assert.Equal(t, 3, linkedListQueue.nodeCount)
assert.Equal(t, 3, linkedListQueue.nodePoolFirst.Count())
result = 0
timeout = 1 * time.Millisecond
go func() {
time.Sleep(timeout)
assert.Equal(t, 3, linkedListQueue.Count())
assert.Equal(t, 0, linkedListQueue.nodeCount)
result, err = concurrentQueue.Take()
assert.Equal(t, nil, err)
assert.Equal(t, 1, result)
assert.Equal(t, 2, linkedListQueue.Count())
assert.Equal(t, 1, linkedListQueue.nodeCount)
result, err = concurrentQueue.Take()
assert.Equal(t, nil, err)
assert.Equal(t, 2, result)
assert.Equal(t, 1, linkedListQueue.Count())
assert.Equal(t, 2, linkedListQueue.nodeCount)
result, err = concurrentQueue.Take()
assert.Equal(t, nil, err)
assert.Equal(t, 3, result)
assert.Equal(t, 0, linkedListQueue.Count())
assert.Equal(t, 3, linkedListQueue.nodeCount)
result, err = concurrentQueue.Take()
assert.NotEqual(t, 4, result)
assert.NotEqual(t, nil, err)
assert.Equal(t, 0, result)
assert.Equal(t, ErrQueueIsEmpty, err)
assert.Equal(t, 0, linkedListQueue.Count())
assert.Equal(t, 3, linkedListQueue.nodeCount)
}()
go func() {
assert.Equal(t, 0, linkedListQueue.Count())
assert.Equal(t, 3, linkedListQueue.nodeCount)
err = concurrentQueue.Put(1)
assert.Equal(t, nil, err)
assert.Equal(t, 1, linkedListQueue.Count())
assert.Equal(t, 2, linkedListQueue.nodeCount)
err = concurrentQueue.Put(2)
assert.Equal(t, nil, err)
assert.Equal(t, 2, linkedListQueue.Count())
assert.Equal(t, 1, linkedListQueue.nodeCount)
err = concurrentQueue.Put(3)
assert.Equal(t, nil, err)
assert.Equal(t, 3, linkedListQueue.Count())
assert.Equal(t, 0, linkedListQueue.nodeCount)
time.Sleep(3 * timeout / 2)
assert.Equal(t, 0, linkedListQueue.Count())
assert.Equal(t, 3, linkedListQueue.nodeCount)
linkedListQueue.KeepNodePoolCount(2)
assert.Equal(t, 2, linkedListQueue.nodeCount)
assert.Equal(t, 2, linkedListQueue.nodePoolFirst.Count())
err = concurrentQueue.Put(4)
assert.Equal(t, nil, err)
assert.Equal(t, 1, linkedListQueue.Count())
assert.Equal(t, 1, linkedListQueue.nodeCount)
err = concurrentQueue.Put(5)
assert.Equal(t, nil, err)
assert.Equal(t, 2, linkedListQueue.Count())
assert.Equal(t, 0, linkedListQueue.nodeCount)
err = concurrentQueue.Put(6)
assert.Equal(t, nil, err)
assert.Equal(t, 3, linkedListQueue.Count())
assert.Equal(t, 0, linkedListQueue.nodeCount)
}()
time.Sleep(2 * timeout)
assert.Equal(t, 3, linkedListQueue.Count())
assert.Equal(t, 0, linkedListQueue.nodeCount)
linkedListQueue.Clear()
assert.Equal(t, 0, linkedListQueue.Count())
assert.Equal(t, 3, linkedListQueue.nodeCount)
node := linkedListQueue.nodePoolFirst
for node != nil {
assert.Nil(t, node.Val)
node = node.Next
}
linkedListQueue.ClearNodePool()
assert.Equal(t, 0, linkedListQueue.Count())
assert.Equal(t, 0, linkedListQueue.nodeCount)
assert.Nil(t, linkedListQueue.nodePoolFirst)
go func() {
time.Sleep(1 * time.Millisecond)
for i := 1; i <= 10000; i++ {
result, err := concurrentQueue.Take()
assert.Equal(t, nil, err)
assert.Equal(t, i, result)
}
}()
go func() {
for i := 1; i <= 10000; i++ {
err := concurrentQueue.Offer(i)
assert.Equal(t, nil, err)
}
}()
time.Sleep(2 * timeout)
}
func TestNewBufferedChannelQueue(t *testing.T) {
var queue Queue[int]
var err error
var result int
var timeout time.Duration
bufferedChannelQueue := NewBufferedChannelQueue[int](3, 10000, 100).
SetLoadFromPoolDuration(time.Millisecond / 10).
SetFreeNodeHookPoolIntervalDuration(1 * time.Millisecond)
queue = bufferedChannelQueue
// Sync
timeout = 1 * time.Millisecond
bufferedChannelQueue.SetBufferSizeMaximum(1)
err = queue.Offer(1)
assert.Equal(t, nil, err)
err = queue.Offer(2)
assert.Equal(t, nil, err)
err = queue.Offer(3)
assert.Equal(t, nil, err)
// Channel: only 3 positions & Buffer: 1 position, now `4` is inserted into the buffer(buffer size： 1)
err = queue.Offer(4)
assert.Equal(t, nil, err)
time.Sleep(1 * timeout)
// Channel: only 3 positions & Buffer: 1 position, now `5` can't be inserted into the buffer(`4` is already inside)
err = queue.Offer(5)
assert.Equal(t, ErrQueueIsFull, err)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, 1, result)
assert.Equal(t, nil, err)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, 2, result)
assert.Equal(t, nil, err)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, 3, result)
assert.Equal(t, nil, err)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, 4, result)
assert.Equal(t, nil, err)
// Async
asyncTaskDone := make(chan bool)
bufferedChannelQueue.SetBufferSizeMaximum(6)
timeout = 2 * time.Millisecond
go func() {
time.Sleep(timeout)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, 1, result)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, 2, result)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, 3, result)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, 4, result)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, 5, result)
result, err = bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, 6, result)
asyncTaskDone <- true
}()
go func() {
err = bufferedChannelQueue.Put(1)
assert.Equal(t, nil, err)
err = bufferedChannelQueue.Put(2)
assert.Equal(t, nil, err)
err = bufferedChannelQueue.Put(3)
assert.Equal(t, nil, err)
err = bufferedChannelQueue.Put(4)
assert.Equal(t, nil, err)
err = bufferedChannelQueue.Put(5)
assert.Equal(t, nil, err)
err = bufferedChannelQueue.Put(6)
assert.Equal(t, nil, err)
}()
<-asyncTaskDone
bufferedChannelQueue.SetBufferSizeMaximum(10000)
timeout = 10 * time.Millisecond
go func() {
for i := 1; i <= 10000; i++ {
result, err := bufferedChannelQueue.TakeWithTimeout(timeout)
assert.Equal(t, nil, err)
assert.Equal(t, i, result)
}
asyncTaskDone <- true
}()
go func() {
for i := 1; i <= 10000; i++ {
// err := bufferedChannelQueue.PutWithTimeout(i, timeout)
// err := bufferedChannelQueue.Put(i)
err := bufferedChannelQueue.Offer(i)
assert.Equal(t, nil, err)
}
assert.Equal(t, 0, bufferedChannelQueue.pool.nodeCount)
}()
<-asyncTaskDone
result, err = bufferedChannelQueue.Poll()
assert.Equal(t, ErrQueueIsEmpty, err)
assert.Equal(t, 0, result)
time.Sleep(1 * timeout)
assert.GreaterOrEqual(t, bufferedChannelQueue.pool.nodeCount, 100)
close(asyncTaskDone)
}