restore: Add basic test for progress bar accounting of hardlinks

internal/restorer/restorer_unix_test.go

@@ -9,10 +9,12 @@ import (
 	"path/filepath"
 	"syscall"
 	"testing"
+	"time"
 
 	"github.com/restic/restic/internal/repository"
 	"github.com/restic/restic/internal/restic"
 	rtest "github.com/restic/restic/internal/test"
+	restoreui "github.com/restic/restic/internal/ui/restore"
 )
 
 func TestRestorerRestoreEmptyHardlinkedFileds(t *testing.T) {
@@ -66,3 +68,56 @@ func getBlockCount(t *testing.T, filename string) int64 {
 	}
 	return st.Blocks
 }
+
+type printerMock struct {
+	filesFinished, filesTotal, allBytesWritten, allBytesTotal uint64
+}
+
+func (p *printerMock) Update(filesFinished, filesTotal, allBytesWritten, allBytesTotal uint64, duration time.Duration) {
+}
+func (p *printerMock) Finish(filesFinished, filesTotal, allBytesWritten, allBytesTotal uint64, duration time.Duration) {
+	p.filesFinished = filesFinished
+	p.filesTotal = filesTotal
+	p.allBytesWritten = allBytesWritten
+	p.allBytesTotal = allBytesTotal
+}
+
+func TestRestorerProgressBar(t *testing.T) {
+	repo := repository.TestRepository(t)
+
+	sn, _ := saveSnapshot(t, repo, Snapshot{
+		Nodes: map[string]Node{
+			"dirtest": Dir{
+				Nodes: map[string]Node{
+					"file1": File{Links: 2, Inode: 1, Data: "foo"},
+					"file2": File{Links: 2, Inode: 1, Data: "foo"},
+				},
+			},
+			"file2": File{Links: 1, Inode: 2, Data: "example"},
+		},
+	})
+
+	mock := &printerMock{}
+	progress := restoreui.NewProgress(mock, 0)
+	res := NewRestorer(context.TODO(), repo, sn, false, progress)
+	res.SelectFilter = func(item string, dstpath string, node *restic.Node) (selectedForRestore bool, childMayBeSelected bool) {
+		return true, true
+	}
+
+	tempdir := rtest.TempDir(t)
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	err := res.RestoreTo(ctx, tempdir)
+	rtest.OK(t, err)
+	progress.Finish()
+
+	const filesFinished = 4
+	const filesTotal = filesFinished
+	const allBytesWritten = 10
+	const allBytesTotal = allBytesWritten
+	rtest.Assert(t, mock.filesFinished == filesFinished, "filesFinished: expected %v, got %v", filesFinished, mock.filesFinished)
+	rtest.Assert(t, mock.filesTotal == filesTotal, "filesTotal: expected %v, got %v", filesTotal, mock.filesTotal)
+	rtest.Assert(t, mock.allBytesWritten == allBytesWritten, "allBytesWritten: expected %v, got %v", allBytesWritten, mock.allBytesWritten)
+	rtest.Assert(t, mock.allBytesTotal == allBytesTotal, "allBytesTotal: expected %v, got %v", allBytesTotal, mock.allBytesTotal)
+}