mirror of
https://github.com/cubefs/cubefs.git
synced 2026-08-02 10:06:14 +00:00
116 lines
2.4 KiB
Go
116 lines
2.4 KiB
Go
// Copyright 2023 The CubeFS Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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package flowctrl
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import (
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"bytes"
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"crypto/rand"
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"io"
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"log"
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"math"
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"runtime"
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"sync"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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)
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var (
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size = 4 * 1024 * 1024
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b = make([]byte, size)
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)
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func init() {
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runtime.GOMAXPROCS(4)
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log.SetFlags(log.LstdFlags | log.Lshortfile)
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rand.Read(b)
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}
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func TestControllerReader(t *testing.T) {
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{
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size := size
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c := NewController(2 * 1024 * 1024)
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defer c.Close()
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assert.Equal(t, 2*1024*1024, c.GetRateLimit())
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r1 := c.Reader(bytes.NewReader(b))
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r2 := c.Reader(bytes.NewReader(b))
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b1 := make([]byte, size)
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b2 := make([]byte, size)
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wg := sync.WaitGroup{}
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wg.Add(2)
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go func() {
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n, err := io.ReadFull(r1, b1)
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assert.NoError(t, err)
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assert.Equal(t, size, n)
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wg.Done()
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}()
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go func() {
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time.Sleep(1 * time.Second)
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n, err := io.ReadFull(r2, b2)
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assert.NoError(t, err)
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assert.Equal(t, size, n)
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wg.Done()
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}()
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now := time.Now()
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wg.Wait()
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elapsed := time.Since(now).Seconds()
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log.Println(elapsed)
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assert.True(t, math.Abs(4-elapsed) < 0.5)
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assert.Equal(t, b, b1)
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assert.Equal(t, b, b2)
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}
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}
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func TestControllerWriter(t *testing.T) {
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{
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size := int64(size)
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c := NewController(2 * 1024 * 1024)
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defer c.Close()
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b1 := new(bytes.Buffer)
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b2 := new(bytes.Buffer)
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w1 := c.Writer(b1)
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w2 := c.Writer(b2)
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wg := sync.WaitGroup{}
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wg.Add(2)
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go func() {
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n, err := io.Copy(w1, bytes.NewReader(b))
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assert.NoError(t, err)
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assert.Equal(t, size, n)
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wg.Done()
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}()
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go func() {
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time.Sleep(1 * time.Second)
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n, err := io.Copy(w2, bytes.NewReader(b))
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assert.NoError(t, err)
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assert.Equal(t, size, n)
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wg.Done()
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}()
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now := time.Now()
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wg.Wait()
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elapsed := time.Since(now).Seconds()
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log.Println(elapsed)
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assert.True(t, math.Abs(4-elapsed) < 0.5)
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assert.Equal(t, b, b1.Bytes())
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assert.Equal(t, b, b2.Bytes())
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}
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}
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