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498 lines
11 KiB
Go
498 lines
11 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package compositefs
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import (
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"context"
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"errors"
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"io/fs"
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"net"
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"net/http"
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/tailscale/xnet/webdav"
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"tailscale.com/tailfs/shared"
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"tailscale.com/tstest"
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)
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func TestStat(t *testing.T) {
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cfs, dir1, _, clock, close := createFileSystem(t, nil)
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defer close()
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tests := []struct {
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label string
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name string
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expected fs.FileInfo
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err error
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}{
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{
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label: "root folder",
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name: "/",
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expected: &shared.StaticFileInfo{
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Named: "/",
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Sized: 0,
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ModdedTime: clock.Now(),
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Dir: true,
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},
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},
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{
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label: "remote1",
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name: "/remote1",
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expected: &shared.StaticFileInfo{
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Named: "/remote1",
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Sized: 0,
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ModdedTime: clock.Now(),
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Dir: true,
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},
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},
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{
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label: "remote2",
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name: "/remote2",
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expected: &shared.StaticFileInfo{
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Named: "/remote2",
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Sized: 0,
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ModdedTime: clock.Now(),
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Dir: true,
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},
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},
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{
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label: "non-existent remote",
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name: "/remote3",
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err: os.ErrNotExist,
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},
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{
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label: "file on remote1",
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name: "/remote1/file1.txt",
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expected: &shared.StaticFileInfo{
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Named: "/remote1/file1.txt",
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Sized: stat(t, filepath.Join(dir1, "file1.txt")).Size(),
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ModdedTime: stat(t, filepath.Join(dir1, "file1.txt")).ModTime(),
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Dir: false,
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},
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},
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}
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ctx := context.Background()
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for _, test := range tests {
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t.Run(test.label, func(t *testing.T) {
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fi, err := cfs.Stat(ctx, test.name)
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if test.err != nil {
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if err == nil || !errors.Is(err, test.err) {
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t.Errorf("expected error: %v got: %v", test.err, err)
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}
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} else {
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if err != nil {
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t.Errorf("unable to stat file: %v", err)
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} else {
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infosEqual(t, test.expected, fi)
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}
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}
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})
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}
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}
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func TestStatWithStatChildren(t *testing.T) {
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cfs, dir1, dir2, _, close := createFileSystem(t, &Options{StatChildren: true})
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defer close()
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tests := []struct {
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label string
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name string
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expected fs.FileInfo
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}{
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{
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label: "root folder",
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name: "/",
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expected: &shared.StaticFileInfo{
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Named: "/",
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Sized: 0,
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ModdedTime: stat(t, dir2).ModTime(), // ModTime should be greatest modtime of children
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Dir: true,
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},
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},
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{
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label: "remote1",
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name: "/remote1",
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expected: &shared.StaticFileInfo{
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Named: "/remote1",
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Sized: stat(t, dir1).Size(),
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ModdedTime: stat(t, dir1).ModTime(),
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Dir: true,
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},
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},
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{
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label: "remote2",
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name: "/remote2",
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expected: &shared.StaticFileInfo{
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Named: "/remote2",
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Sized: stat(t, dir2).Size(),
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ModdedTime: stat(t, dir2).ModTime(),
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Dir: true,
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},
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},
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}
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ctx := context.Background()
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for _, test := range tests {
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t.Run(test.label, func(t *testing.T) {
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fi, err := cfs.Stat(ctx, test.name)
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if err != nil {
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t.Errorf("unable to stat file: %v", err)
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} else {
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infosEqual(t, test.expected, fi)
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}
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})
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}
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}
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func TestMkdir(t *testing.T) {
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fs, _, _, _, close := createFileSystem(t, nil)
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defer close()
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tests := []struct {
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label string
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name string
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perm os.FileMode
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err error
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}{
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{
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label: "attempt to create root folder",
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name: "/",
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},
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{
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label: "attempt to create remote",
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name: "/remote1",
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},
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{
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label: "attempt to create non-existent remote",
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name: "/remote3",
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err: os.ErrPermission,
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},
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{
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label: "attempt to create file on non-existent remote",
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name: "/remote3/somefile.txt",
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err: os.ErrNotExist,
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},
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{
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label: "success",
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name: "/remote1/newfile.txt",
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perm: 0772,
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},
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}
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ctx := context.Background()
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for _, test := range tests {
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t.Run(test.label, func(t *testing.T) {
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err := fs.Mkdir(ctx, test.name, test.perm)
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if test.err != nil {
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if err == nil || !errors.Is(err, test.err) {
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t.Errorf("expected error: %v got: %v", test.err, err)
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}
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} else {
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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} else {
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fi, err := fs.Stat(ctx, test.name)
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if err != nil {
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t.Errorf("unable to stat file: %v", err)
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} else {
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if fi.Name() != test.name {
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t.Errorf("expected name: %v got: %v", test.name, fi.Name())
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}
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if !fi.IsDir() {
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t.Error("expected directory")
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}
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}
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}
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}
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})
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}
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}
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func TestRemoveAll(t *testing.T) {
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fs, _, _, _, close := createFileSystem(t, nil)
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defer close()
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tests := []struct {
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label string
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name string
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err error
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}{
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{
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label: "attempt to remove root folder",
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name: "/",
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err: os.ErrPermission,
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},
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{
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label: "attempt to remove remote",
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name: "/remote1",
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err: os.ErrPermission,
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},
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{
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label: "attempt to remove non-existent remote",
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name: "/remote3",
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err: os.ErrPermission,
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},
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{
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label: "attempt to remove file on non-existent remote",
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name: "/remote3/somefile.txt",
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err: os.ErrNotExist,
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},
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{
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label: "remove non-existent file",
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name: "/remote1/nonexistent.txt",
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},
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{
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label: "remove existing file",
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name: "/remote1/dir1",
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},
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}
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ctx := context.Background()
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for _, test := range tests {
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t.Run(test.label, func(t *testing.T) {
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err := fs.RemoveAll(ctx, test.name)
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if test.err != nil {
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if err == nil || !errors.Is(err, test.err) {
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t.Errorf("expected error: %v got: %v", test.err, err)
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}
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} else {
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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} else {
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_, err := fs.Stat(ctx, test.name)
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if !os.IsNotExist(err) {
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t.Errorf("expected dir to be gone: %v", err)
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}
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}
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}
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})
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}
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}
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func TestRename(t *testing.T) {
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fs, _, _, _, close := createFileSystem(t, nil)
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defer close()
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tests := []struct {
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label string
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oldName string
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newName string
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err error
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expectedNewInfo *shared.StaticFileInfo
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}{
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{
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label: "attempt to move root folder",
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oldName: "/",
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newName: "/remote2/copy.txt",
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err: os.ErrPermission,
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},
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{
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label: "attempt to move to root folder",
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oldName: "/remote1/file1.txt",
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newName: "/",
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err: os.ErrPermission,
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},
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{
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label: "attempt to move to remote",
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oldName: "/remote1/file1.txt",
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newName: "/remote2",
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err: os.ErrPermission,
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},
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{
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label: "attempt to move to non-existent remote",
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oldName: "/remote1/file1.txt",
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newName: "/remote3",
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err: os.ErrPermission,
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},
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{
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label: "attempt to move file from non-existent remote",
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oldName: "/remote3/file1.txt",
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newName: "/remote1/file1.txt",
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err: os.ErrNotExist,
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},
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{
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label: "attempt to move file to a non-existent remote",
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oldName: "/remote2/file2.txt",
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newName: "/remote3/file2.txt",
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err: os.ErrNotExist,
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},
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{
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label: "attempt to move file across remotes",
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oldName: "/remote1/file1.txt",
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newName: "/remote2/file1.txt",
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err: os.ErrPermission,
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},
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{
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label: "attempt to move remote itself",
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oldName: "/remote1",
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newName: "/remote2",
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err: os.ErrPermission,
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},
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{
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label: "attempt to move to a remote",
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oldName: "/remote1/file2.txt",
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newName: "/remote2",
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err: os.ErrPermission,
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},
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{
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label: "move file within remote",
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oldName: "/remote2/file2.txt",
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newName: "/remote2/file3.txt",
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expectedNewInfo: &shared.StaticFileInfo{
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Named: "/remote2/file3.txt",
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Sized: 5,
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Dir: false,
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},
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},
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}
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ctx := context.Background()
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for _, test := range tests {
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t.Run(test.label, func(t *testing.T) {
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err := fs.Rename(ctx, test.oldName, test.newName)
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if test.err != nil {
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if err == nil || test.err.Error() != err.Error() {
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t.Errorf("expected error: %v got: %v", test.err, err)
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}
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} else {
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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} else {
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fi, err := fs.Stat(ctx, test.newName)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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} else {
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// Override modTime to avoid having to compare it
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test.expectedNewInfo.ModdedTime = fi.ModTime()
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infosEqual(t, test.expectedNewInfo, fi)
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}
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}
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}
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})
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}
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}
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func createFileSystem(t *testing.T, opts *Options) (webdav.FileSystem, string, string, *tstest.Clock, func()) {
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l1, dir1 := startRemote(t)
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l2, dir2 := startRemote(t)
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// Make some files, use perms 0666 as lowest common denominator that works
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// on both UNIX and Windows.
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err := os.WriteFile(filepath.Join(dir1, "file1.txt"), []byte("12345"), 0666)
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if err != nil {
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t.Fatal(err)
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}
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err = os.WriteFile(filepath.Join(dir2, "file2.txt"), []byte("54321"), 0666)
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if err != nil {
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t.Fatal(err)
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}
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// make some directories
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err = os.Mkdir(filepath.Join(dir1, "dir1"), 0666)
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if err != nil {
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t.Fatal(err)
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}
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err = os.Mkdir(filepath.Join(dir2, "dir2"), 0666)
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if err != nil {
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t.Fatal(err)
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}
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if opts == nil {
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opts = &Options{}
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}
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if opts.Logf == nil {
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opts.Logf = t.Logf
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}
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clock := tstest.NewClock(tstest.ClockOpts{Start: time.Now()})
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opts.Clock = clock
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fs := New(*opts)
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fs.AddChild(&Child{Name: "remote4", FS: &closeableFS{webdav.Dir(dir2)}})
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fs.SetChildren(&Child{Name: "remote2", FS: webdav.Dir(dir2)},
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&Child{Name: "remote3", FS: &closeableFS{webdav.Dir(dir2)}},
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)
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fs.AddChild(&Child{Name: "remote1", FS: webdav.Dir(dir1)})
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fs.RemoveChild("remote3")
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child, ok := fs.GetChild("remote1")
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if !ok || child == nil {
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t.Fatal("unable to GetChild(remote1)")
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}
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child, ok = fs.GetChild("remote2")
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if !ok || child == nil {
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t.Fatal("unable to GetChild(remote2)")
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}
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child, ok = fs.GetChild("remote3")
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if ok || child != nil {
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t.Fatal("should have been able to GetChild(remote3)")
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}
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child, ok = fs.GetChild("remote4")
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if ok || child != nil {
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t.Fatal("should have been able to GetChild(remote4)")
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}
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return fs, dir1, dir2, clock, func() {
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defer l1.Close()
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defer os.RemoveAll(dir1)
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defer l2.Close()
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defer os.RemoveAll(dir2)
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}
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}
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func stat(t *testing.T, path string) fs.FileInfo {
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fi, err := os.Stat(path)
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if err != nil {
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t.Fatal(err)
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}
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return fi
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}
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func startRemote(t *testing.T) (net.Listener, string) {
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dir := t.TempDir()
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l, err := net.Listen("tcp", "127.0.0.1:")
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if err != nil {
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t.Fatal(err)
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}
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h := &webdav.Handler{
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FileSystem: webdav.Dir(dir),
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LockSystem: webdav.NewMemLS(),
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}
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s := &http.Server{Handler: h}
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go s.Serve(l)
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return l, dir
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}
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func infosEqual(t *testing.T, expected, actual fs.FileInfo) {
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t.Helper()
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if expected.Name() != actual.Name() {
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t.Errorf("expected name: %v got: %v", expected.Name(), actual.Name())
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}
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if expected.Size() != actual.Size() {
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t.Errorf("expected Size: %v got: %v", expected.Size(), actual.Size())
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}
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if !expected.ModTime().Truncate(time.Second).UTC().Equal(actual.ModTime().Truncate(time.Second).UTC()) {
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t.Errorf("expected ModTime: %v got: %v", expected.ModTime(), actual.ModTime())
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}
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if expected.IsDir() != actual.IsDir() {
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t.Errorf("expected IsDir: %v got: %v", expected.IsDir(), actual.IsDir())
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}
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}
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// closeableFS is a webdav.FileSystem that implements io.Closer()
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type closeableFS struct {
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webdav.FileSystem
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}
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func (cfs *closeableFS) Close() error {
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return nil
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}
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