| 14 | ) |
| 15 | |
| 16 | func TestCreateReplacePreservesDevice(t *testing.T) { |
| 17 | info, err := os.Lstat("/dev/null") |
| 18 | if err != nil || info.Mode()&os.ModeDevice == 0 { |
| 19 | t.Skip("/dev/null is unavailable") |
| 20 | } |
| 21 | |
| 22 | root, err := OpenRoot("/dev") |
| 23 | require.NoError(t, err) |
| 24 | defer root.Close() |
| 25 | file, err := root.Create("null", 0o644, 0o755, true) |
| 26 | require.NoError(t, err) |
| 27 | _, err = file.Write([]byte("content")) |
| 28 | require.NoError(t, err) |
| 29 | require.NoError(t, file.Close()) |
| 30 | |
| 31 | after, err := os.Lstat("/dev/null") |
| 32 | require.NoError(t, err) |
| 33 | assert.NotZero(t, after.Mode()&os.ModeDevice) |
| 34 | assert.True(t, os.SameFile(info, after)) |
| 35 | } |
| 36 | |
| 37 | func TestCreateReplaceDoesNotUnlinkFIFO(t *testing.T) { |
| 38 | rootDir := t.TempDir() |