v2ray-core/common/buf/writer_test.go

46 lines
999 B
Go

package buf_test
import (
"bufio"
"bytes"
"crypto/rand"
"testing"
"context"
"io"
. "v2ray.com/core/common/buf"
"v2ray.com/core/testing/assert"
"v2ray.com/core/transport/ray"
)
func TestWriter(t *testing.T) {
assert := assert.On(t)
lb := New()
assert.Error(lb.AppendSupplier(ReadFrom(rand.Reader))).IsNil()
expectedBytes := append([]byte(nil), lb.Bytes()...)
writeBuffer := bytes.NewBuffer(make([]byte, 0, 1024*1024))
writer := NewWriter(NewBufferedWriter(writeBuffer))
err := writer.Write(NewMultiBufferValue(lb))
assert.Error(err).IsNil()
assert.Bytes(expectedBytes).Equals(writeBuffer.Bytes())
}
func TestBytesWriterReadFrom(t *testing.T) {
assert := assert.On(t)
cache := ray.NewStream(context.Background())
reader := bufio.NewReader(io.LimitReader(rand.Reader, 8192))
_, err := reader.WriteTo(ToBytesWriter(cache))
assert.Error(err).IsNil()
mb, err := cache.Read()
assert.Error(err).IsNil()
assert.Int(mb.Len()).Equals(8192)
assert.Int(len(mb)).Equals(4)
}