restic/internal/fs/helpers.go

62 lines
1.1 KiB
Go

package fs
import (
"io/ioutil"
"os"
"testing"
)
// IsRegularFile returns true if fi belongs to a normal file. If fi is nil,
// false is returned.
func IsRegularFile(fi os.FileInfo) bool {
if fi == nil {
return false
}
return fi.Mode()&(os.ModeType|os.ModeCharDevice) == 0
}
// TestChdir changes the current directory to dest, the function back returns to the previous directory.
func TestChdir(t testing.TB, dest string) (back func()) {
t.Helper()
prev, err := os.Getwd()
if err != nil {
t.Fatal(err)
}
t.Logf("chdir to %v", dest)
err = os.Chdir(dest)
if err != nil {
t.Fatal(err)
}
return func() {
t.Helper()
t.Logf("chdir back to %v", prev)
err = os.Chdir(prev)
if err != nil {
t.Fatal(err)
}
}
}
// TestTempFile returns a new temporary file, which is removed when cleanup()
// is called.
func TestTempFile(t testing.TB, prefix string) (File, func()) {
f, err := ioutil.TempFile("", prefix)
if err != nil {
t.Fatal(err)
}
cleanup := func() {
_ = f.Close()
err = Remove(f.Name())
if err != nil {
t.Fatal(err)
}
}
return f, cleanup
}