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- // Copyright (C) 2019 The Syncthing Authors.
- //
- // This Source Code Form is subject to the terms of the Mozilla Public
- // License, v. 2.0. If a copy of the MPL was not distributed with this file,
- // You can obtain one at https://mozilla.org/MPL/2.0/.
- package fs
- import (
- "errors"
- "math/rand"
- "testing"
- "unicode"
- "unicode/utf8"
- "github.com/syncthing/syncthing/lib/build"
- )
- func TestCommonPrefix(t *testing.T) {
- test := func(first, second, expect string) {
- t.Helper()
- res := CommonPrefix(first, second)
- if res != expect {
- t.Errorf("Expected %s got %s", expect, res)
- }
- }
- if build.IsWindows {
- test(`c:\Audrius\Downloads`, `c:\Audrius\Docs`, `c:\Audrius`)
- test(`c:\Audrius\Downloads`, `C:\Audrius\Docs`, ``) // Case differences :(
- test(`C:\Audrius-a\Downloads`, `C:\Audrius-b\Docs`, `C:\`)
- test(`\\?\C:\Audrius-a\Downloads`, `\\?\C:\Audrius-b\Docs`, `\\?\C:\`)
- test(`\\?\C:\Audrius\Downloads`, `\\?\C:\Audrius\Docs`, `\\?\C:\Audrius`)
- test(`Audrius-a\Downloads`, `Audrius-b\Docs`, ``)
- test(`Audrius\Downloads`, `Audrius\Docs`, `Audrius`)
- test(`c:\Audrius\Downloads`, `Audrius\Docs`, ``)
- test(`c:\`, `c:\`, `c:\`)
- test(`\\?\c:\`, `\\?\c:\`, `\\?\c:\`)
- } else {
- test(`/Audrius/Downloads`, `/Audrius/Docs`, `/Audrius`)
- test(`/Audrius\Downloads`, `/Audrius\Docs`, `/`)
- test(`/Audrius-a/Downloads`, `/Audrius-b/Docs`, `/`)
- test(`Audrius\Downloads`, `Audrius\Docs`, ``) // Windows separators
- test(`Audrius/Downloads`, `Audrius/Docs`, `Audrius`)
- test(`Audrius-a\Downloads`, `Audrius-b\Docs`, ``)
- test(`/Audrius/Downloads`, `Audrius/Docs`, ``)
- test(`/`, `/`, `/`)
- }
- test(`Audrius`, `Audrius`, `Audrius`)
- test(`.`, `.`, `.`)
- }
- func TestWindowsInvalidFilename(t *testing.T) {
- cases := []struct {
- name string
- err error
- }{
- {`asdf.txt`, nil},
- {`nul`, errInvalidFilenameWindowsReservedName},
- {`nul.txt`, errInvalidFilenameWindowsReservedName},
- {`nul.jpg.txt`, errInvalidFilenameWindowsReservedName},
- {`some.nul.jpg`, nil},
- {`foo>bar.txt`, errInvalidFilenameWindowsReservedChar},
- {`foo \bar.txt`, errInvalidFilenameWindowsSpacePeriod},
- {`foo.\bar.txt`, errInvalidFilenameWindowsSpacePeriod},
- {`foo.d\bar.txt`, nil},
- {`foo.d\bar .txt`, nil},
- {`foo.d\bar. txt`, nil},
- }
- for _, tc := range cases {
- err := WindowsInvalidFilename(tc.name)
- if !errors.Is(err, tc.err) {
- t.Errorf("For %q, got %v, expected %v", tc.name, err, tc.err)
- }
- t.Logf("%s: %v", tc.name, err)
- }
- }
- func TestSanitizePath(t *testing.T) {
- cases := [][2]string{
- {"", ""},
- {"foo", "foo"},
- {`\*/foo\?/bar[{!@$%^&*#()}]`, "foo bar ()"},
- {"Räksmörgås", "Räksmörgås"},
- {`Räk \/ smörgås`, "Räk smörgås"},
- {"هذا هو *\x07?اسم الملف", "هذا هو اسم الملف"},
- {`../foo.txt`, `.. foo.txt`},
- {" \t \n filename in \t space\r", "filename in space"},
- {"你\xff好", `你 好`},
- {"\000 foo", "foo"},
- }
- for _, tc := range cases {
- res := SanitizePath(tc[0])
- if res != tc[1] {
- t.Errorf("SanitizePath(%q) => %q, expected %q", tc[0], res, tc[1])
- }
- }
- }
- // Fuzz test: SanitizePath must always return strings of printable UTF-8
- // characters when fed random data.
- //
- // Note that space is considered printable, but other whitespace runes are not.
- func TestSanitizePathFuzz(t *testing.T) {
- buf := make([]byte, 128)
- for i := 0; i < 100; i++ {
- rand.Read(buf)
- path := SanitizePath(string(buf))
- if !utf8.ValidString(path) {
- t.Errorf("SanitizePath(%q) => %q, not valid UTF-8", buf, path)
- continue
- }
- for _, c := range path {
- if !unicode.IsPrint(c) {
- t.Errorf("non-printable rune %q in sanitized path", c)
- }
- }
- }
- }
- func benchmarkWindowsInvalidFilename(b *testing.B, name string) {
- for i := 0; i < b.N; i++ {
- WindowsInvalidFilename(name)
- }
- }
- func BenchmarkWindowsInvalidFilenameValid(b *testing.B) {
- benchmarkWindowsInvalidFilename(b, "License.txt.gz")
- }
- func BenchmarkWindowsInvalidFilenameNUL(b *testing.B) {
- benchmarkWindowsInvalidFilename(b, "nul.txt.gz")
- }
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