torrent/storage/file_test.go

42 lines
870 B
Go

package storage
import (
"bytes"
"io"
"os"
"path/filepath"
"testing"
"github.com/anacrolix/missinggo/v2"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/anacrolix/torrent/metainfo"
)
func TestShortFile(t *testing.T) {
td := t.TempDir()
s := NewFile(td)
info := &metainfo.Info{
Name: "a",
Length: 2,
PieceLength: missinggo.MiB,
}
ts, err := s.OpenTorrent(info, metainfo.Hash{})
assert.NoError(t, err)
f, err := os.Create(filepath.Join(td, "a"))
require.NoError(t, err)
err = f.Truncate(1)
require.NoError(t, err)
f.Close()
var buf bytes.Buffer
p := info.Piece(0)
n, err := io.Copy(&buf, io.NewSectionReader(ts.Piece(p), 0, p.Length()))
assert.EqualValues(t, 1, n)
switch err {
case nil, io.EOF:
default:
t.Errorf("expected nil or EOF error from truncated piece, got %v", err)
}
}