| 1 | package repair |
| 2 | |
| 3 | import ( |
| 4 | "encoding/json" |
| 5 | "io" |
| 6 | "os" |
| 7 | "testing" |
| 8 | ) |
| 9 | |
| 10 | func TestPendingUpdateReadHandlePreservesSnapshotAcrossArchive(t *testing.T) { |
| 11 | fixture := prepareSupersededUpdateFixture(t, "v1.19.1", "v1.20.0") |
| 12 | // Hold the same regular-file handle used by pending transaction readers |
| 13 | // throughout a real archival. On Windows this requires delete sharing; |
| 14 | // readers keep their old file identity while the path is atomically moved. |
| 15 | reader, err := openRepairRegularRead(PendingUpdatePath()) |
| 16 | if err != nil { |
| 17 | t.Fatal(err) |
| 18 | } |
| 19 | defer reader.Close() |
| 20 | archived, err := ArchiveSupersededPendingFileUpdate(fixture.running, fixture.root) |
| 21 | if err != nil || !archived { |
| 22 | t.Fatalf("archive with active reader: archived=%v err=%v", archived, err) |
| 23 | } |
| 24 | body, err := io.ReadAll(reader) |
| 25 | if err != nil { |
| 26 | t.Fatal(err) |
| 27 | } |
| 28 | var snapshot UpdateTransaction |
| 29 | if err := json.Unmarshal(body, &snapshot); err != nil { |
| 30 | t.Fatal(err) |
| 31 | } |
| 32 | if UpdateTransactionID(&snapshot) != UpdateTransactionID(fixture.transaction) { |
| 33 | t.Fatal("reader lost the original transaction snapshot after archival") |
| 34 | } |
| 35 | if _, err := readPendingUpdateUnchecked(); !os.IsNotExist(err) { |
| 36 | t.Fatalf("new reader observed an archived pending marker: %v", err) |
| 37 | } |
| 38 | } |
| 39 |