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package chunked
import (
"bytes"
"fmt"
"io"
"os"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/vbatts/tar-split/archive/tar"
"github.com/vbatts/tar-split/tar/asm"
"github.com/vbatts/tar-split/tar/storage"
)
func TestTarSizeFromTarSplit(t *testing.T) {
var tarball bytes.Buffer
tarWriter := tar.NewWriter(&tarball)
for _, e := range someFiles {
tf, err := typeToTarType(e.Type)
require.NoError(t, err)
err = tarWriter.WriteHeader(&tar.Header{
Typeflag: tf,
Name: e.Name,
Size: e.Size,
Mode: e.Mode,
})
require.NoError(t, err)
data := make([]byte, e.Size)
_, err = tarWriter.Write(data)
require.NoError(t, err)
}
err := tarWriter.Close()
require.NoError(t, err)
expectedTarSize := int64(tarball.Len())
var tarSplit bytes.Buffer
tsReader, err := asm.NewInputTarStream(&tarball, storage.NewJSONPacker(&tarSplit), storage.NewDiscardFilePutter())
require.NoError(t, err)
_, err = io.Copy(io.Discard, tsReader)
require.NoError(t, err)
res, err := tarSizeFromTarSplit(&tarSplit)
require.NoError(t, err)
assert.Equal(t, expectedTarSize, res)
}
func TestOpenTmpFile(t *testing.T) {
tmpDir := t.TempDir()
for range 1000 {
// scope for cleanup
f := func(fn func(tmpDir string) (*os.File, error)) {
file, err := fn(tmpDir)
assert.NoError(t, err)
defer file.Close()
path, err := os.Readlink(fmt.Sprintf("/proc/self/fd/%d", file.Fd()))
assert.NoError(t, err)
// the path under /proc/self/fd/$FD has the prefix "(deleted)" when the file
// is unlinked
assert.Contains(t, path, "(deleted)")
}
f(openTmpFile)
f(openTmpFileNoTmpFile)
}
}
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