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v2ray-core/common/buf/buffer_test.go

99 lines
1.8 KiB

package buf_test
import (
"bytes"
"crypto/rand"
"testing"
"v2ray.com/core/common"
. "v2ray.com/core/common/buf"
"v2ray.com/core/common/compare"
. "v2ray.com/ext/assert"
)
func TestBufferClear(t *testing.T) {
assert := With(t)
buffer := New()
defer buffer.Release()
payload := "Bytes"
buffer.Write([]byte(payload))
assert(buffer.Len(), Equals, int32(len(payload)))
buffer.Clear()
assert(buffer.Len(), Equals, int32(0))
}
func TestBufferIsEmpty(t *testing.T) {
assert := With(t)
buffer := New()
defer buffer.Release()
assert(buffer.IsEmpty(), IsTrue)
}
func TestBufferString(t *testing.T) {
assert := With(t)
buffer := New()
defer buffer.Release()
common.Must2(buffer.WriteString("Test String"))
assert(buffer.String(), Equals, "Test String")
}
func TestBufferSlice(t *testing.T) {
{
b := New()
common.Must2(b.Write([]byte("abcd")))
bytes := b.BytesFrom(-2)
if err := compare.BytesEqualWithDetail(bytes, []byte{'c', 'd'}); err != nil {
t.Error(err)
}
}
{
b := New()
common.Must2(b.Write([]byte("abcd")))
bytes := b.BytesTo(-2)
if err := compare.BytesEqualWithDetail(bytes, []byte{'a', 'b'}); err != nil {
t.Error(err)
}
}
{
b := New()
common.Must2(b.Write([]byte("abcd")))
bytes := b.BytesRange(-3, -1)
if err := compare.BytesEqualWithDetail(bytes, []byte{'b', 'c'}); err != nil {
t.Error(err)
}
}
}
func TestBufferReadFullFrom(t *testing.T) {
payload := make([]byte, 1024)
common.Must2(rand.Read(payload))
reader := bytes.NewReader(payload)
b := New()
n, err := b.ReadFullFrom(reader, 1024)
common.Must(err)
if n != 1024 {
t.Error("expect reading 1024 bytes, but actually ", n)
}
if err := compare.BytesEqualWithDetail(payload, b.Bytes()); err != nil {
t.Error(err)
}
}
func BenchmarkNewBuffer(b *testing.B) {
for i := 0; i < b.N; i++ {
buffer := New()
buffer.Release()
}
}