| 1 | package session |
| 2 | |
| 3 | import ( |
| 4 | "errors" |
| 5 | "os" |
| 6 | "path/filepath" |
| 7 | "testing" |
| 8 | |
| 9 | "reasonix/internal/filelock" |
| 10 | ) |
| 11 | |
| 12 | func TestPurgeOwnershipAndFailureAtomicity(t *testing.T) { |
| 13 | root := t.TempDir() |
| 14 | p := NewFilesystemPersistence(root) |
| 15 | dir := filepath.Join(root, "victim") |
| 16 | if err := os.Mkdir(dir, 0700); err != nil { |
| 17 | t.Fatal(err) |
| 18 | } |
| 19 | body := filepath.Join(dir, "body") |
| 20 | if err := os.WriteFile(body, []byte("history"), 0600); err != nil { |
| 21 | t.Fatal(err) |
| 22 | } |
| 23 | release, err := acquireSessionWriter(dir) |
| 24 | if err != nil { |
| 25 | t.Fatal(err) |
| 26 | } |
| 27 | called := false |
| 28 | if err := p.PurgeWithTombstone(t.Context(), "victim", func() error { called = true; return nil }); !errors.Is(err, filelock.ErrHeld) || called { |
| 29 | t.Fatalf("external owner bypassed: %v %v", err, called) |
| 30 | } |
| 31 | release() |
| 32 | failed := errors.New("registry unavailable") |
| 33 | if err := p.PurgeWithTombstone(t.Context(), "victim", func() error { return failed }); !errors.Is(err, failed) { |
| 34 | t.Fatal(err) |
| 35 | } |
| 36 | if bytes, err := os.ReadFile(body); err != nil || string(bytes) != "history" { |
| 37 | t.Fatalf("prepare failure changed history: %s %v", bytes, err) |
| 38 | } |
| 39 | if err := p.PurgeWithTombstone(t.Context(), "victim", func() error { |
| 40 | if release, err := acquireSessionWriter(dir); err == nil { |
| 41 | release() |
| 42 | return errors.New("writer entered purge") |
| 43 | } |
| 44 | return nil |
| 45 | }); err != nil { |
| 46 | t.Fatal(err) |
| 47 | } |
| 48 | if _, err := os.Stat(dir); !os.IsNotExist(err) { |
| 49 | t.Fatalf("purge left body: %v", err) |
| 50 | } |
| 51 | if err := p.PurgeWithTombstone(t.Context(), "victim", func() error { return nil }); err != nil { |
| 52 | t.Fatalf("replay: %v", err) |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | func TestPurgeRejectsSymlinkAndStagingCollision(t *testing.T) { |
| 57 | for _, scenario := range []string{"symlink", "collision", "unowned-staging"} { |
| 58 | t.Run(scenario, func(t *testing.T) { |
| 59 | root := t.TempDir() |
| 60 | p := NewFilesystemPersistence(root) |
| 61 | outside := t.TempDir() |
| 62 | if err := os.WriteFile(filepath.Join(outside, "keep"), []byte("keep"), 0600); err != nil { |
| 63 | t.Fatal(err) |
| 64 | } |
| 65 | dir := filepath.Join(root, "victim") |
| 66 | if scenario == "symlink" { |
| 67 | if err := os.Symlink(outside, dir); err != nil { |
| 68 | t.Fatal(err) |
| 69 | } |
| 70 | } else { |
| 71 | if err := os.Mkdir(dir, 0700); err != nil { |
| 72 | t.Fatal(err) |
| 73 | } |
| 74 | if scenario == "unowned-staging" { |
| 75 | if err := os.Remove(dir); err != nil { |
| 76 | t.Fatal(err) |
| 77 | } |
| 78 | } |
| 79 | if err := os.MkdirAll(filepath.Join(root, ".purging", "victim"), 0700); err != nil { |
| 80 | t.Fatal(err) |
| 81 | } |
| 82 | } |
| 83 | called := false |
| 84 | if err := p.PurgeWithTombstone(t.Context(), "victim", func() error { called = true; return nil }); err == nil || called { |
| 85 | t.Fatalf("unsafe purge accepted: %v", err) |
| 86 | } |
| 87 | if _, err := os.Stat(filepath.Join(outside, "keep")); err != nil { |
| 88 | t.Fatal("outside data removed") |
| 89 | } |
| 90 | }) |
| 91 | } |
| 92 | } |
| 93 |