Files
mautrix-telegram/pkg/gotd/bin/buffer_test.go
T
2025-06-27 20:03:37 -07:00

111 lines
2.0 KiB
Go

package bin
import (
"io"
"testing"
"github.com/stretchr/testify/require"
"go.mau.fi/mautrix-telegram/pkg/gotd/testutil"
)
func TestExpandReset(t *testing.T) {
a := require.New(t)
b := Buffer{}
b.PutInt(10)
before := b.Len()
copyBuf := b.Copy()
b.Expand(2)
a.Equal(before+2, b.Len())
a.Equal(copyBuf, b.Buf[:before], "buffer overwrite")
b.ResetN(b.Len() + 2)
a.Zero(b.Buf[0], "buffer not zeroed")
before = b.Len()
b.Skip(2)
a.Equal(before-2, b.Len())
}
func TestCopy(t *testing.T) {
b := Buffer{}
b.PutInt(10)
copyBuf := b.Copy()
copyBuf[0] = 1
require.Equal(t, byte(10), b.Buf[0], "buffer overwritten from copy")
}
func TestBuffer_ResetN(t *testing.T) {
var b Buffer
testutil.ZeroAlloc(t, func() {
b.ResetN(1024)
})
}
func TestBuffer_Raw(t *testing.T) {
b := Buffer{Buf: []byte{1, 2, 3}}
b.Raw()[0] = 2
require.Equal(t, []byte{2, 2, 3}, b.Buf)
}
func TestBuffer_ResetTo(t *testing.T) {
orig := []byte{1, 2, 3}
b := Buffer{Buf: orig}
b.ResetTo([]byte{4, 5, 6})
b.Buf[0] = 2
require.Equal(t, []byte{1, 2, 3}, orig)
require.Equal(t, []byte{2, 5, 6}, b.Buf)
}
var errTest = testutil.TestError()
type errObject struct{}
func (e errObject) Encode(b *Buffer) error {
return errTest
}
func (e errObject) Decode(b *Buffer) error {
return errTest
}
type bytesObject uint32
func (o bytesObject) Decode(b *Buffer) error {
return b.ConsumeID(uint32(o))
}
func (o bytesObject) Encode(b *Buffer) error {
b.PutUint32(uint32(o))
return nil
}
func TestBufferEncodeDecode(t *testing.T) {
a := require.New(t)
b := Buffer{}
a.ErrorIs(b.Encode(errObject{}), errTest)
a.ErrorIs(b.Decode(errObject{}), errTest)
a.NoError(b.Encode(bytesObject(1)))
a.NoError(b.Decode(bytesObject(1)))
}
func TestBuffer_Read(t *testing.T) {
a := require.New(t)
b := Buffer{}
_, err := b.Read(nil)
a.NoError(err)
_, err = b.Read([]byte{1})
a.ErrorIs(err, io.EOF)
a.Equal(err, io.EOF)
b.Put([]byte{1})
_, err = b.Read([]byte{1})
a.NoError(err)
a.Empty(b.Buf)
}