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v2ray-core/common/buf/multi_buffer_test.go

59 lines
1.1 KiB

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.AppendBytes('a', 'b')
b2 := New()
b2.AppendBytes('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.AppendBytes('a', 'b')
mb.Append(b)
assert(mb.Len(), Equals, int32(2))
}
func TestMultiBufferSliceBySizeLarge(t *testing.T) {
assert := With(t)
lb := NewSize(8 * 1024)
common.Must(lb.Reset(ReadFrom(rand.Reader)))
var mb MultiBuffer
mb.Append(lb)
mb2 := mb.SliceBySize(4 * 1024)
assert(mb2.Len(), Equals, int32(4*1024))
}
func TestInterface(t *testing.T) {
assert := With(t)
assert((*MultiBuffer)(nil), Implements, (*io.WriterTo)(nil))
assert((*MultiBuffer)(nil), Implements, (*io.ReaderFrom)(nil))
}