mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-12-23 02:26:49 -05:00
226 lines
4.4 KiB
Go
226 lines
4.4 KiB
Go
package buf_test
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import (
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"bytes"
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"crypto/rand"
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"testing"
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"github.com/google/go-cmp/cmp"
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"github.com/v2fly/v2ray-core/v5/common"
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. "github.com/v2fly/v2ray-core/v5/common/buf"
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)
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func TestBufferClear(t *testing.T) {
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buffer := New()
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defer buffer.Release()
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payload := "Bytes"
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buffer.Write([]byte(payload))
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if diff := cmp.Diff(buffer.Bytes(), []byte(payload)); diff != "" {
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t.Error(diff)
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}
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buffer.Clear()
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if buffer.Len() != 0 {
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t.Error("expect 0 length, but got ", buffer.Len())
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}
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}
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func TestBufferIsEmpty(t *testing.T) {
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buffer := New()
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defer buffer.Release()
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if buffer.IsEmpty() != true {
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t.Error("expect empty buffer, but not")
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}
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}
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func TestBufferString(t *testing.T) {
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buffer := New()
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defer buffer.Release()
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const payload = "Test String"
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common.Must2(buffer.WriteString(payload))
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if buffer.String() != payload {
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t.Error("expect buffer content as ", payload, " but actually ", buffer.String())
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}
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}
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func TestBufferByte(t *testing.T) {
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{
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buffer := New()
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common.Must(buffer.WriteByte('m'))
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if buffer.String() != "m" {
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t.Error("expect buffer content as ", "m", " but actually ", buffer.String())
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}
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buffer.Release()
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}
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{
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buffer := StackNew()
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common.Must(buffer.WriteByte('n'))
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if buffer.String() != "n" {
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t.Error("expect buffer content as ", "n", " but actually ", buffer.String())
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}
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buffer.Release()
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}
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{
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buffer := StackNew()
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common.Must2(buffer.WriteString("HELLOWORLD"))
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if b := buffer.Byte(5); b != 'W' {
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t.Error("unexpected byte ", b)
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}
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buffer.SetByte(5, 'M')
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if buffer.String() != "HELLOMORLD" {
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t.Error("expect buffer content as ", "n", " but actually ", buffer.String())
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}
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buffer.Release()
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}
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}
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func TestBufferResize(t *testing.T) {
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buffer := New()
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defer buffer.Release()
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const payload = "Test String"
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common.Must2(buffer.WriteString(payload))
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if buffer.String() != payload {
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t.Error("expect buffer content as ", payload, " but actually ", buffer.String())
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}
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buffer.Resize(-6, -3)
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if l := buffer.Len(); int(l) != 3 {
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t.Error("len error ", l)
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}
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if s := buffer.String(); s != "Str" {
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t.Error("unexpect buffer ", s)
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}
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buffer.Resize(int32(len(payload)), 200)
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if l := buffer.Len(); int(l) != 200-len(payload) {
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t.Error("len error ", l)
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}
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}
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func TestBufferSlice(t *testing.T) {
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{
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b := New()
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common.Must2(b.Write([]byte("abcd")))
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bytes := b.BytesFrom(-2)
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if diff := cmp.Diff(bytes, []byte{'c', 'd'}); diff != "" {
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t.Error(diff)
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}
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}
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{
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b := New()
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common.Must2(b.Write([]byte("abcd")))
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bytes := b.BytesTo(-2)
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if diff := cmp.Diff(bytes, []byte{'a', 'b'}); diff != "" {
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t.Error(diff)
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}
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}
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{
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b := New()
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common.Must2(b.Write([]byte("abcd")))
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bytes := b.BytesRange(-3, -1)
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if diff := cmp.Diff(bytes, []byte{'b', 'c'}); diff != "" {
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t.Error(diff)
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}
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}
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}
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func TestBufferReadFullFrom(t *testing.T) {
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payload := make([]byte, 1024)
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common.Must2(rand.Read(payload))
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reader := bytes.NewReader(payload)
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b := New()
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n, err := b.ReadFullFrom(reader, 1024)
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common.Must(err)
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if n != 1024 {
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t.Error("expect reading 1024 bytes, but actually ", n)
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}
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if diff := cmp.Diff(payload, b.Bytes()); diff != "" {
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t.Error(diff)
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}
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}
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func BenchmarkNewBuffer(b *testing.B) {
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for i := 0; i < b.N; i++ {
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buffer := New()
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buffer.Release()
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}
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}
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func BenchmarkNewBufferStack(b *testing.B) {
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for i := 0; i < b.N; i++ {
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buffer := StackNew()
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buffer.Release()
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}
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}
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func BenchmarkWrite2(b *testing.B) {
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buffer := New()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, _ = buffer.Write([]byte{'a', 'b'})
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buffer.Clear()
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}
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}
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func BenchmarkWrite8(b *testing.B) {
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buffer := New()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, _ = buffer.Write([]byte{'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'})
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buffer.Clear()
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}
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}
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func BenchmarkWrite32(b *testing.B) {
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buffer := New()
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payload := make([]byte, 32)
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rand.Read(payload)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, _ = buffer.Write(payload)
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buffer.Clear()
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}
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}
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func BenchmarkWriteByte2(b *testing.B) {
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buffer := New()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_ = buffer.WriteByte('a')
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_ = buffer.WriteByte('b')
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buffer.Clear()
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}
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}
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func BenchmarkWriteByte8(b *testing.B) {
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buffer := New()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_ = buffer.WriteByte('a')
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_ = buffer.WriteByte('b')
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_ = buffer.WriteByte('c')
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_ = buffer.WriteByte('d')
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_ = buffer.WriteByte('e')
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_ = buffer.WriteByte('f')
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_ = buffer.WriteByte('g')
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_ = buffer.WriteByte('h')
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buffer.Clear()
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}
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}
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