mirror of
https://github.com/restic/restic.git
synced 2024-12-23 08:16:36 +00:00
38 lines
791 B
Go
38 lines
791 B
Go
package fs
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import (
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"os"
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"path"
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"strconv"
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"syscall"
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"testing"
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"github.com/restic/restic/internal/test"
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)
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func TestPreallocate(t *testing.T) {
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for _, i := range []int64{0, 1, 4096, 1024 * 1024} {
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t.Run(strconv.FormatInt(i, 10), func(t *testing.T) {
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dirpath := test.TempDir(t)
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flags := os.O_CREATE | os.O_TRUNC | os.O_WRONLY
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wr, err := os.OpenFile(path.Join(dirpath, "test"), flags, 0600)
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test.OK(t, err)
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defer func() {
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test.OK(t, wr.Close())
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}()
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err = PreallocateFile(wr, i)
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if err == syscall.ENOTSUP {
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t.SkipNow()
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}
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test.OK(t, err)
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fi, err := wr.Stat()
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test.OK(t, err)
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efi := ExtendedStat(fi)
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test.Assert(t, efi.Size == i || efi.Blocks > 0, "Preallocated size of %v, got size %v block %v", i, efi.Size, efi.Blocks)
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})
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}
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}
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