| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package utils |
| |
| import ( |
| "fmt" |
| "strconv" |
| "sync" |
| "testing" |
| "time" |
| |
| "github.com/stretchr/testify/assert" |
| ) |
| |
| func TestRingRead(t *testing.T) { |
| rb := NewRingNodesBuffer(5) |
| assert.Equal(t, uint64(8), rb.Cap()) |
| |
| err := rb.Write([]byte("hello")) |
| if !assert.Nil(t, err) { |
| return |
| } |
| data, err := rb.Read(1 * time.Second) |
| if !assert.Nil(t, err) { |
| return |
| } |
| |
| assert.Equal(t, "hello", string(data)) |
| } |
| |
| func TestRingReadBySize(t *testing.T) { |
| rb := NewRingNodesBuffer(5) |
| assert.Equal(t, uint64(8), rb.Cap()) |
| |
| err := rb.Write([]byte("hello")) |
| if !assert.Nil(t, err) { |
| return |
| } |
| sink := make([]byte, 5) |
| n, err := rb.ReadBySize(sink, 1*time.Second) |
| if !assert.Nil(t, err) { |
| return |
| } |
| |
| assert.Equal(t, 5, n) |
| assert.Equal(t, "hello", string(sink)) |
| } |
| |
| func BenchmarkRingReadBufferMPMC(b *testing.B) { |
| q := NewRingNodesBuffer(uint64(b.N * 100)) |
| var wg sync.WaitGroup |
| wg.Add(100) |
| b.ResetTimer() |
| b.ReportAllocs() |
| |
| for i := 0; i < 100; i++ { |
| go func() { |
| for i := 0; i < b.N; i++ { |
| q.Write([]byte(strconv.Itoa(i))) |
| } |
| }() |
| } |
| |
| for i := 0; i < 100; i++ { |
| go func() { |
| for i := 0; i < b.N; i++ { |
| _ = len(strconv.Itoa(i)) |
| var p []byte |
| p, _ = q.Read(1 * time.Second) |
| fmt.Sprintf("%v", p) |
| |
| } |
| wg.Done() |
| }() |
| } |
| |
| wg.Wait() |
| } |
| |
| func BenchmarkRingBySizeBufferMPMC(b *testing.B) { |
| q := NewRingNodesBuffer(uint64(b.N * 100)) |
| var wg sync.WaitGroup |
| wg.Add(100) |
| b.ResetTimer() |
| b.ReportAllocs() |
| |
| for i := 0; i < 100; i++ { |
| go func() { |
| for i := 0; i < b.N; i++ { |
| q.Write([]byte(strconv.Itoa(i))) |
| } |
| }() |
| } |
| |
| for i := 0; i < 100; i++ { |
| go func() { |
| for i := 0; i < b.N; i++ { |
| p := make([]byte, len(strconv.Itoa(i))) |
| q.ReadBySize(p, 1*time.Second) |
| } |
| wg.Done() |
| }() |
| } |
| |
| wg.Wait() |
| } |