mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-09-09 13:34:34 -04:00
111 lines
2.1 KiB
Go
111 lines
2.1 KiB
Go
package buf_test
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import (
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"crypto/rand"
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"io"
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"testing"
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"github.com/google/go-cmp/cmp"
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"v2ray.com/core/common"
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. "v2ray.com/core/common/buf"
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)
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func TestMultiBufferRead(t *testing.T) {
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b1 := New()
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common.Must2(b1.WriteString("ab"))
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b2 := New()
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common.Must2(b2.WriteString("cd"))
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mb := MultiBuffer{b1, b2}
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bs := make([]byte, 32)
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_, nBytes := SplitBytes(mb, bs)
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if nBytes != 4 {
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t.Error("expect 4 bytes split, but got ", nBytes)
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}
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if r := cmp.Diff(bs[:nBytes], []byte("abcd")); r != "" {
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t.Error(r)
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}
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}
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func TestMultiBufferAppend(t *testing.T) {
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var mb MultiBuffer
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b := New()
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common.Must2(b.WriteString("ab"))
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mb = append(mb, b)
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if mb.Len() != 2 {
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t.Error("expected length 2, but got ", mb.Len())
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}
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}
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func TestMultiBufferSliceBySizeLarge(t *testing.T) {
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lb := make([]byte, 8*1024)
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common.Must2(io.ReadFull(rand.Reader, lb))
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mb := MergeBytes(nil, lb)
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mb, mb2 := SplitSize(mb, 1024)
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if mb2.Len() != 1024 {
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t.Error("expect length 1024, but got ", mb2.Len())
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}
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if mb.Len() != 7*1024 {
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t.Error("expect length 7*1024, but got ", mb.Len())
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}
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mb, mb3 := SplitSize(mb, 7*1024)
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if mb3.Len() != 7*1024 {
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t.Error("expect length 7*1024, but got", mb.Len())
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}
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if !mb.IsEmpty() {
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t.Error("expect empty buffer, but got ", mb.Len())
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}
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}
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func TestMultiBufferSplitFirst(t *testing.T) {
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b1 := New()
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b1.WriteString("b1")
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b2 := New()
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b2.WriteString("b2")
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b3 := New()
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b3.WriteString("b3")
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var mb MultiBuffer
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mb = append(mb, b1, b2, b3)
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mb, c1 := SplitFirst(mb)
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if diff := cmp.Diff(b1.String(), c1.String()); diff != "" {
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t.Error(diff)
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}
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mb, c2 := SplitFirst(mb)
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if diff := cmp.Diff(b2.String(), c2.String()); diff != "" {
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t.Error(diff)
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}
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mb, c3 := SplitFirst(mb)
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if diff := cmp.Diff(b3.String(), c3.String()); diff != "" {
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t.Error(diff)
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}
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if !mb.IsEmpty() {
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t.Error("expect empty buffer, but got ", mb.String())
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}
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}
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func BenchmarkSplitBytes(b *testing.B) {
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var mb MultiBuffer
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raw := make([]byte, Size)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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buffer := StackNew()
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buffer.Extend(Size)
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mb = append(mb, &buffer)
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mb, _ = SplitBytes(mb, raw)
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}
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}
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