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v2ray-core/common/buf/buffered_writer_test.go

54 lines
1.1 KiB

package buf_test
import (
"crypto/rand"
"testing"
. "v2ray.com/core/common/buf"
"v2ray.com/core/testing/assert"
)
func TestBufferedWriter(t *testing.T) {
assert := assert.On(t)
content := New()
writer := NewBufferedWriter(content)
assert.Bool(writer.IsBuffered()).IsTrue()
payload := make([]byte, 16)
nBytes, err := writer.Write(payload)
assert.Int(nBytes).Equals(16)
assert.Error(err).IsNil()
assert.Bool(content.IsEmpty()).IsTrue()
assert.Error(writer.SetBuffered(false)).IsNil()
assert.Int(content.Len()).Equals(16)
}
func TestBufferedWriterLargePayload(t *testing.T) {
assert := assert.On(t)
content := NewLocal(128 * 1024)
writer := NewBufferedWriter(content)
assert.Bool(writer.IsBuffered()).IsTrue()
payload := make([]byte, 64*1024)
rand.Read(payload)
nBytes, err := writer.Write(payload[:512])
assert.Int(nBytes).Equals(512)
assert.Error(err).IsNil()
assert.Bool(content.IsEmpty()).IsTrue()
nBytes, err = writer.Write(payload[512:])
assert.Error(err).IsNil()
assert.Error(writer.Flush()).IsNil()
assert.Int(nBytes).Equals(64*1024 - 512)
assert.Bytes(content.Bytes()).Equals(payload)
}