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restic/internal/archiver/file_saver_test.go

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package archiver
import (
"context"
"fmt"
"io/ioutil"
"path/filepath"
"runtime"
"testing"
"github.com/restic/chunker"
"github.com/restic/restic/internal/fs"
"github.com/restic/restic/internal/restic"
"github.com/restic/restic/internal/test"
tomb "gopkg.in/tomb.v2"
)
func createTestFiles(t testing.TB, num int) (files []string, cleanup func()) {
tempdir, cleanup := test.TempDir(t)
for i := 0; i < 15; i++ {
filename := fmt.Sprintf("testfile-%d", i)
err := ioutil.WriteFile(filepath.Join(tempdir, filename), []byte(filename), 0600)
if err != nil {
t.Fatal(err)
}
files = append(files, filepath.Join(tempdir, filename))
}
return files, cleanup
}
func startFileSaver(ctx context.Context, t testing.TB, fs fs.FS) (*FileSaver, *tomb.Tomb) {
var tmb tomb.Tomb
saveBlob := func(ctx context.Context, tpe restic.BlobType, buf *Buffer) FutureBlob {
ch := make(chan saveBlobResponse)
close(ch)
return FutureBlob{ch: ch}
}
workers := uint(runtime.NumCPU())
pol, err := chunker.RandomPolynomial()
if err != nil {
t.Fatal(err)
}
s := NewFileSaver(ctx, &tmb, fs, saveBlob, pol, workers, workers)
s.NodeFromFileInfo = restic.NodeFromFileInfo
return s, &tmb
}
func TestFileSaver(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
files, cleanup := createTestFiles(t, 15)
defer cleanup()
startFn := func() {}
completeFn := func(*restic.Node, ItemStats) {}
testFs := fs.Local{}
s, tmb := startFileSaver(ctx, t, testFs)
var results []FutureFile
for _, filename := range files {
f, err := testFs.Open(filename)
if err != nil {
t.Fatal(err)
}
fi, err := f.Stat()
if err != nil {
t.Fatal(err)
}
ff := s.Save(ctx, filename, f, fi, startFn, completeFn)
results = append(results, ff)
}
for _, file := range results {
file.Wait(ctx)
if file.Err() != nil {
t.Errorf("unable to save file: %v", file.Err())
}
}
tmb.Kill(nil)
err := tmb.Wait()
if err != nil {
t.Fatal(err)
}
}