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v2fly/common/buf/multi_buffer_test.go
2018-08-16 12:05:33 +02:00

59 lines
1.1 KiB
Go

package buf_test
import (
"crypto/rand"
"io"
"testing"
"v2ray.com/core/common"
. "v2ray.com/core/common/buf"
. "v2ray.com/ext/assert"
)
func TestMultiBufferRead(t *testing.T) {
assert := With(t)
b1 := New()
b1.WriteBytes('a', 'b')
b2 := New()
b2.WriteBytes('c', 'd')
mb := NewMultiBufferValue(b1, b2)
bs := make([]byte, 32)
nBytes, err := mb.Read(bs)
assert(err, IsNil)
assert(nBytes, Equals, 4)
assert(bs[:nBytes], Equals, []byte("abcd"))
}
func TestMultiBufferAppend(t *testing.T) {
assert := With(t)
var mb MultiBuffer
b := New()
b.WriteBytes('a', 'b')
mb.Append(b)
assert(mb.Len(), Equals, int32(2))
}
func TestMultiBufferSliceBySizeLarge(t *testing.T) {
assert := With(t)
lb := make([]byte, 8*1024)
common.Must2(io.ReadFull(rand.Reader, lb))
var mb MultiBuffer
common.Must2(mb.Write(lb))
mb2 := mb.SliceBySize(1024)
assert(mb2.Len(), Equals, int32(1024))
}
func TestInterface(t *testing.T) {
assert := With(t)
assert((*MultiBuffer)(nil), Implements, (*io.WriterTo)(nil))
assert((*MultiBuffer)(nil), Implements, (*io.ReaderFrom)(nil))
}