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restic/cmd/restic/cmd_backup_test.go
2024-11-01 17:07:43 +01:00

115 lines
3.1 KiB
Go

package main
import (
"bytes"
"fmt"
"os"
"path/filepath"
"runtime"
"sort"
"strings"
"testing"
rtest "github.com/restic/restic/internal/test"
)
func TestCollectTargets(t *testing.T) {
dir := rtest.TempDir(t)
fooSpace := "foo "
barStar := "bar*" // Must sort before the others, below.
if runtime.GOOS == "windows" { // Doesn't allow "*" or trailing space.
fooSpace = "foo"
barStar = "bar"
}
var expect []string
for _, filename := range []string{
barStar, "baz", "cmdline arg", fooSpace,
"fromfile", "fromfile-raw", "fromfile-verbatim", "quux",
} {
// All mentioned files must exist for collectTargets.
f, err := os.Create(filepath.Join(dir, filename))
rtest.OK(t, err)
rtest.OK(t, f.Close())
expect = append(expect, f.Name())
}
f1, err := os.Create(filepath.Join(dir, "fromfile"))
rtest.OK(t, err)
// Empty lines should be ignored. A line starting with '#' is a comment.
_, err = fmt.Fprintf(f1, "\n%s*\n # here's a comment\n", f1.Name())
rtest.OK(t, err)
rtest.OK(t, f1.Close())
f2, err := os.Create(filepath.Join(dir, "fromfile-verbatim"))
rtest.OK(t, err)
for _, filename := range []string{fooSpace, barStar} {
// Empty lines should be ignored. CR+LF is allowed.
_, err = fmt.Fprintf(f2, "%s\r\n\n", filepath.Join(dir, filename))
rtest.OK(t, err)
}
rtest.OK(t, f2.Close())
f3, err := os.Create(filepath.Join(dir, "fromfile-raw"))
rtest.OK(t, err)
for _, filename := range []string{"baz", "quux"} {
_, err = fmt.Fprintf(f3, "%s\x00", filepath.Join(dir, filename))
rtest.OK(t, err)
}
rtest.OK(t, err)
rtest.OK(t, f3.Close())
opts := BackupOptions{
FilesFrom: []string{f1.Name()},
FilesFromVerbatim: []string{f2.Name()},
FilesFromRaw: []string{f3.Name()},
}
targets, err := collectTargets(opts, []string{filepath.Join(dir, "cmdline arg")})
rtest.OK(t, err)
sort.Strings(targets)
rtest.Equals(t, expect, targets)
}
func TestReadFilenamesRaw(t *testing.T) {
// These should all be returned exactly as-is.
expected := []string{
"\xef\xbb\xbf/utf-8-bom",
"/absolute",
"../.././relative",
"\t\t leading and trailing space \t\t",
"newline\nin filename",
"not UTF-8: \x80\xff/simple",
` / *[]* \ `,
}
var buf bytes.Buffer
for _, name := range expected {
buf.WriteString(name)
buf.WriteByte(0)
}
got, err := readFilenamesRaw(&buf)
rtest.OK(t, err)
rtest.Equals(t, expected, got)
// Empty input is ok.
got, err = readFilenamesRaw(strings.NewReader(""))
rtest.OK(t, err)
rtest.Equals(t, 0, len(got))
// An empty filename is an error.
_, err = readFilenamesRaw(strings.NewReader("foo\x00\x00"))
rtest.Assert(t, err != nil, "no error for zero byte")
rtest.Assert(t, strings.Contains(err.Error(), "empty filename"),
"wrong error message: %v", err.Error())
// No trailing NUL byte is an error, because it likely means we're
// reading a line-oriented text file (someone forgot -print0).
_, err = readFilenamesRaw(strings.NewReader("simple.txt"))
rtest.Assert(t, err != nil, "no error for zero byte")
rtest.Assert(t, strings.Contains(err.Error(), "zero byte"),
"wrong error message: %v", err.Error())
}