diff options
Diffstat (limited to 'internal/fs/preallocate_test.go')
-rw-r--r-- | internal/fs/preallocate_test.go | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/internal/fs/preallocate_test.go b/internal/fs/preallocate_test.go new file mode 100644 index 000000000..9dabd2f36 --- /dev/null +++ b/internal/fs/preallocate_test.go @@ -0,0 +1,38 @@ +package fs + +import ( + "os" + "path" + "strconv" + "syscall" + "testing" + + "github.com/restic/restic/internal/test" +) + +func TestPreallocate(t *testing.T) { + for _, i := range []int64{0, 1, 4096, 1024 * 1024} { + t.Run(strconv.FormatInt(i, 10), func(t *testing.T) { + dirpath := test.TempDir(t) + + flags := os.O_CREATE | os.O_TRUNC | os.O_WRONLY + wr, err := os.OpenFile(path.Join(dirpath, "test"), flags, 0600) + test.OK(t, err) + defer func() { + test.OK(t, wr.Close()) + }() + + err = PreallocateFile(wr, i) + if err == syscall.ENOTSUP { + t.SkipNow() + } + test.OK(t, err) + + fi, err := wr.Stat() + test.OK(t, err) + + efi := ExtendedStat(fi) + test.Assert(t, efi.Size == i || efi.Blocks > 0, "Preallocated size of %v, got size %v block %v", i, efi.Size, efi.Blocks) + }) + } +} |