| 1 | package extension |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "testing" |
| 7 | ) |
| 8 | |
| 9 | func TestFilePriorCompensateRestore(t *testing.T) { |
| 10 | dir := t.TempDir() |
| 11 | path := filepath.Join(dir, "f.txt") |
| 12 | if err := os.WriteFile(path, []byte("old"), 0o644); err != nil { |
| 13 | t.Fatal(err) |
| 14 | } |
| 15 | s := NewFilePriorStore() |
| 16 | s.Capture("r1", path, []byte("old"), true) |
| 17 | if err := os.WriteFile(path, []byte("new"), 0o644); err != nil { |
| 18 | t.Fatal(err) |
| 19 | } |
| 20 | if err := s.Compensate("r1"); err != nil { |
| 21 | t.Fatal(err) |
| 22 | } |
| 23 | got, err := os.ReadFile(path) |
| 24 | if err != nil { |
| 25 | t.Fatal(err) |
| 26 | } |
| 27 | if string(got) != "old" { |
| 28 | t.Fatalf("got %q", got) |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | func TestFilePriorCompensateRemoveCreate(t *testing.T) { |
| 33 | dir := t.TempDir() |
| 34 | path := filepath.Join(dir, "new.txt") |
| 35 | if err := os.WriteFile(path, []byte("created"), 0o644); err != nil { |
| 36 | t.Fatal(err) |
| 37 | } |
| 38 | s := NewFilePriorStore() |
| 39 | s.Capture("c1", path, nil, false) |
| 40 | if err := s.Compensate("c1"); err != nil { |
| 41 | t.Fatal(err) |
| 42 | } |
| 43 | if _, err := os.Stat(path); !os.IsNotExist(err) { |
| 44 | t.Fatalf("expected removed, err=%v", err) |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | func TestApplyFileWriteCompensationUpdatesReceipt(t *testing.T) { |
| 49 | dir := t.TempDir() |
| 50 | path := filepath.Join(dir, "x.txt") |
| 51 | _ = os.WriteFile(path, []byte("v1"), 0o644) |
| 52 | id := "file-write:" + path |
| 53 | DefaultFilePriorStore.Capture(id, path, []byte("v1"), true) |
| 54 | _ = os.WriteFile(path, []byte("v2"), 0o644) |
| 55 | if err := ApplyFileWriteCompensation(id); err != nil { |
| 56 | t.Fatal(err) |
| 57 | } |
| 58 | r, ok := DefaultReceiptStore.Get(id) |
| 59 | if !ok || r.CompensationStatus != "applied" { |
| 60 | t.Fatalf("receipt = %+v ok=%v", r, ok) |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | func TestFilePriorStoreBoundsRetainedBytes(t *testing.T) { |
| 65 | s := newFilePriorStore(5, 4) |
| 66 | dir := t.TempDir() |
| 67 | if !s.Capture("first", filepath.Join(dir, "first"), []byte("1234"), true) { |
| 68 | t.Fatal("in-budget prior was rejected") |
| 69 | } |
| 70 | if s.Capture("too-large", filepath.Join(dir, "large"), []byte("12345"), true) { |
| 71 | t.Fatal("oversized prior was retained") |
| 72 | } |
| 73 | if s.Capture("over-total", filepath.Join(dir, "total"), []byte("12"), true) { |
| 74 | t.Fatal("prior exceeding the owner budget was retained") |
| 75 | } |
| 76 | if s.retainedBytes != 4 || len(s.byID) != 1 { |
| 77 | t.Fatalf("retained state = bytes:%d entries:%d, want 4/1", s.retainedBytes, len(s.byID)) |
| 78 | } |
| 79 | s.Forget("first") |
| 80 | if s.retainedBytes != 0 || len(s.byID) != 0 { |
| 81 | t.Fatalf("forget retained state = bytes:%d entries:%d, want 0/0", s.retainedBytes, len(s.byID)) |
| 82 | } |
| 83 | } |
| 84 |