(t *testing.T)
| 13 | ) |
| 14 | |
| 15 | func TestSparseCopy(t *testing.T) { |
| 16 | t.Parallel() |
| 17 | |
| 18 | if runtime.GOOS == "windows" { |
| 19 | t.Skip("sparse files are not supported on windows") |
| 20 | } |
| 21 | |
| 22 | dir := t.TempDir() |
| 23 | |
| 24 | blk, err := stat.GetBlockSize(dir) |
| 25 | require.NoError(t, err) |
| 26 | |
| 27 | type chunk struct { |
| 28 | slice []byte |
| 29 | off uint64 |
| 30 | rep uint64 |
| 31 | } |
| 32 | |
| 33 | cases := []struct { |
| 34 | name string |
| 35 | size uint64 |
| 36 | data []chunk |
| 37 | }{ |
| 38 | { |
| 39 | name: "null", |
| 40 | size: 0, |
| 41 | }, |
| 42 | { |
| 43 | name: "empty", |
| 44 | size: blk, |
| 45 | data: []chunk{ |
| 46 | {slice: []byte{0}, off: 0, rep: blk}, |
| 47 | }, |
| 48 | }, |
| 49 | { |
| 50 | name: "hole", |
| 51 | size: 2 * blk, |
| 52 | data: []chunk{ |
| 53 | {slice: []byte{1}, off: blk, rep: blk}, |
| 54 | }, |
| 55 | }, |
| 56 | { |
| 57 | name: "mix", |
| 58 | size: 2 * blk, |
| 59 | data: []chunk{ |
| 60 | {slice: []byte{1}, off: 3, rep: blk - 10}, |
| 61 | {slice: []byte{1}, off: 2*blk - 10, rep: 10}, |
| 62 | }, |
| 63 | }, |
| 64 | } |
| 65 | |
| 66 | for _, c := range cases { |
| 67 | src := filepath.Join(dir, "src"+c.name) |
| 68 | dst := filepath.Join(dir, "dst"+c.name) |
| 69 | |
| 70 | sf, err := os.Create(src) |
| 71 | if err != nil { |
| 72 | t.Fatal(err) |
nothing calls this directly
no test coverage detected