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package restic_test
import (
"context"
"encoding/json"
"errors"
"os"
"path/filepath"
"strconv"
"testing"
"github.com/restic/restic/internal/archiver"
"github.com/restic/restic/internal/repository"
"github.com/restic/restic/internal/restic"
rtest "github.com/restic/restic/internal/test"
"golang.org/x/sync/errgroup"
)
var testFiles = []struct {
name string
content []byte
}{
{"foo", []byte("bar")},
{"bar/foo2", []byte("bar2")},
{"bar/bla/blubb", []byte("This is just a test!\n")},
}
func createTempDir(t *testing.T) string {
tempdir, err := os.MkdirTemp(rtest.TestTempDir, "restic-test-")
rtest.OK(t, err)
for _, test := range testFiles {
file := filepath.Join(tempdir, test.name)
dir := filepath.Dir(file)
if dir != "." {
rtest.OK(t, os.MkdirAll(dir, 0755))
}
f, err := os.Create(file)
defer func() {
rtest.OK(t, f.Close())
}()
rtest.OK(t, err)
_, err = f.Write(test.content)
rtest.OK(t, err)
}
return tempdir
}
func TestTree(t *testing.T) {
dir := createTempDir(t)
defer func() {
if rtest.TestCleanupTempDirs {
rtest.RemoveAll(t, dir)
}
}()
}
var testNodes = []restic.Node{
{Name: "normal"},
{Name: "with backslashes \\zzz"},
{Name: "test utf-8 föbärß"},
{Name: "test invalid \x00\x01\x02\x03\x04"},
{Name: "test latin1 \x75\x6d\x6c\xe4\xfc\x74\xf6\x6e\xdf\x6e\x6c\x6c"},
}
func TestNodeMarshal(t *testing.T) {
for i, n := range testNodes {
data, err := json.Marshal(&n)
rtest.OK(t, err)
var node restic.Node
err = json.Unmarshal(data, &node)
rtest.OK(t, err)
if n.Name != node.Name {
t.Fatalf("Node %d: Names are not equal, want: %q got: %q", i, n.Name, node.Name)
}
}
}
func TestNodeComparison(t *testing.T) {
fi, err := os.Lstat("tree_test.go")
rtest.OK(t, err)
node, err := restic.NodeFromFileInfo("tree_test.go", fi)
rtest.OK(t, err)
n2 := *node
rtest.Assert(t, node.Equals(n2), "nodes aren't equal")
n2.Size--
rtest.Assert(t, !node.Equals(n2), "nodes are equal")
}
func TestEmptyLoadTree(t *testing.T) {
repo := repository.TestRepository(t)
var wg errgroup.Group
repo.StartPackUploader(context.TODO(), &wg)
// save tree
tree := restic.NewTree(0)
id, err := restic.SaveTree(context.TODO(), repo, tree)
rtest.OK(t, err)
// save packs
rtest.OK(t, repo.Flush(context.Background()))
// load tree again
tree2, err := restic.LoadTree(context.TODO(), repo, id)
rtest.OK(t, err)
rtest.Assert(t, tree.Equals(tree2),
"trees are not equal: want %v, got %v",
tree, tree2)
}
func TestTreeEqualSerialization(t *testing.T) {
files := []string{"node.go", "tree.go", "tree_test.go"}
for i := 1; i <= len(files); i++ {
tree := restic.NewTree(i)
builder := restic.NewTreeJSONBuilder()
for _, fn := range files[:i] {
fi, err := os.Lstat(fn)
rtest.OK(t, err)
node, err := restic.NodeFromFileInfo(fn, fi)
rtest.OK(t, err)
rtest.OK(t, tree.Insert(node))
rtest.OK(t, builder.AddNode(node))
rtest.Assert(t, tree.Insert(node) != nil, "no error on duplicate node")
rtest.Assert(t, builder.AddNode(node) != nil, "no error on duplicate node")
rtest.Assert(t, errors.Is(builder.AddNode(node), restic.ErrTreeNotOrdered), "wrong error returned")
}
treeBytes, err := json.Marshal(tree)
treeBytes = append(treeBytes, '\n')
rtest.OK(t, err)
stiBytes, err := builder.Finalize()
rtest.OK(t, err)
// compare serialization of an individual node and the SaveTreeIterator
rtest.Equals(t, treeBytes, stiBytes)
}
}
func BenchmarkBuildTree(b *testing.B) {
const size = 100 // Directories of this size are not uncommon.
nodes := make([]restic.Node, size)
for i := range nodes {
// Archiver.SaveTree inputs in sorted order, so do that here too.
nodes[i].Name = strconv.Itoa(i)
}
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
t := restic.NewTree(size)
for i := range nodes {
_ = t.Insert(&nodes[i])
}
}
}
func TestLoadTree(t *testing.T) {
repository.TestAllVersions(t, testLoadTree)
}
func testLoadTree(t *testing.T, version uint) {
if rtest.BenchArchiveDirectory == "" {
t.Skip("benchdir not set, skipping")
}
// archive a few files
repo := repository.TestRepositoryWithVersion(t, version)
sn := archiver.TestSnapshot(t, repo, rtest.BenchArchiveDirectory, nil)
rtest.OK(t, repo.Flush(context.Background()))
_, err := restic.LoadTree(context.TODO(), repo, *sn.Tree)
rtest.OK(t, err)
}
func BenchmarkLoadTree(t *testing.B) {
repository.BenchmarkAllVersions(t, benchmarkLoadTree)
}
func benchmarkLoadTree(t *testing.B, version uint) {
if rtest.BenchArchiveDirectory == "" {
t.Skip("benchdir not set, skipping")
}
// archive a few files
repo := repository.TestRepositoryWithVersion(t, version)
sn := archiver.TestSnapshot(t, repo, rtest.BenchArchiveDirectory, nil)
rtest.OK(t, repo.Flush(context.Background()))
t.ResetTimer()
for i := 0; i < t.N; i++ {
_, err := restic.LoadTree(context.TODO(), repo, *sn.Tree)
rtest.OK(t, err)
}
}
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