| 1 | package repair |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "strings" |
| 7 | "testing" |
| 8 | "time" |
| 9 | ) |
| 10 | |
| 11 | func prepareTestFileUpdateClaim(t *testing.T) (*UpdateTransaction, string, []string) { |
| 12 | t.Helper() |
| 13 | t.Setenv("REASONIX_HOME", t.TempDir()) |
| 14 | dir, err := filepath.EvalSymlinks(t.TempDir()) |
| 15 | if err != nil { |
| 16 | t.Fatal(err) |
| 17 | } |
| 18 | paths := []string{ |
| 19 | filepath.Join(dir, "reasonix-desktop"), |
| 20 | filepath.Join(dir, "reasonix-guard"), |
| 21 | filepath.Join(dir, "reasonix"), |
| 22 | } |
| 23 | for _, path := range paths { |
| 24 | if err := os.WriteFile(path, []byte(filepath.Base(path)), 0o700); err != nil { |
| 25 | t.Fatal(err) |
| 26 | } |
| 27 | } |
| 28 | tx, err := PrepareFileUpdate("v1", "v2", paths[0], paths[1:]...) |
| 29 | if err != nil { |
| 30 | t.Fatal(err) |
| 31 | } |
| 32 | return tx, paths[0], paths |
| 33 | } |
| 34 | |
| 35 | func TestClaimPendingFileUpdateRejectsReleaseUnitMismatch(t *testing.T) { |
| 36 | tx, launcher, paths := prepareTestFileUpdateClaim(t) |
| 37 | _, release, err := ClaimPendingFileUpdate( |
| 38 | tx.ToVersion, |
| 39 | tx.CreatedAt, |
| 40 | launcher, |
| 41 | paths[:len(paths)-1], |
| 42 | time.Second, |
| 43 | ) |
| 44 | if release != nil { |
| 45 | release() |
| 46 | } |
| 47 | if err == nil || !strings.Contains(err.Error(), "release unit does not match") { |
| 48 | t.Fatalf("claim error = %v, want release-unit mismatch", err) |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | func TestClaimPendingFileUpdateExactRejectsRewrittenTransaction(t *testing.T) { |
| 53 | tx, launcher, paths := prepareTestFileUpdateClaim(t) |
| 54 | changed := *tx |
| 55 | changed.FromVersion = "rewritten" |
| 56 | if err := overwritePendingUpdateForTest(&changed); err != nil { |
| 57 | t.Fatal(err) |
| 58 | } |
| 59 | |
| 60 | _, release, err := ClaimPendingFileUpdateExact( |
| 61 | tx.ToVersion, |
| 62 | tx.CreatedAt, |
| 63 | UpdateTransactionID(tx), |
| 64 | launcher, |
| 65 | paths, |
| 66 | time.Second, |
| 67 | ) |
| 68 | if release != nil { |
| 69 | release() |
| 70 | } |
| 71 | if err == nil || !strings.Contains(err.Error(), "pending transaction changed") { |
| 72 | t.Fatalf("claim error = %v, want full transaction rejection", err) |
| 73 | } |
| 74 | current, readErr := readPendingUpdateForLauncher(launcher) |
| 75 | if readErr != nil || current.FromVersion != changed.FromVersion { |
| 76 | t.Fatalf("rewritten transaction = %+v, %v", current, readErr) |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | func TestClaimPendingFileUpdateRejectsLiveReleaseUnitDrift(t *testing.T) { |
| 81 | tx, launcher, paths := prepareTestFileUpdateClaim(t) |
| 82 | if err := os.WriteFile(paths[1], []byte("changed-after-prepare"), 0o700); err != nil { |
| 83 | t.Fatal(err) |
| 84 | } |
| 85 | _, release, err := ClaimPendingFileUpdate( |
| 86 | tx.ToVersion, |
| 87 | tx.CreatedAt, |
| 88 | launcher, |
| 89 | paths, |
| 90 | time.Second, |
| 91 | ) |
| 92 | if release != nil { |
| 93 | release() |
| 94 | } |
| 95 | if err == nil || !strings.Contains(err.Error(), "changed after backup") { |
| 96 | t.Fatalf("claim error = %v, want live release-unit drift rejection", err) |
| 97 | } |
| 98 | if _, statErr := os.Stat(PendingUpdatePath()); statErr != nil { |
| 99 | t.Fatalf("rejected claim removed pending transaction: %v", statErr) |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | func TestClaimPendingFileUpdateRejectsRollbackBackupDrift(t *testing.T) { |
| 104 | tx, launcher, paths := prepareTestFileUpdateClaim(t) |
| 105 | if err := os.WriteFile(tx.Files[1].BackupPath, []byte("changed-backup"), 0o700); err != nil { |
| 106 | t.Fatal(err) |
| 107 | } |
| 108 | _, release, err := ClaimPendingFileUpdate( |
| 109 | tx.ToVersion, |
| 110 | tx.CreatedAt, |
| 111 | launcher, |
| 112 | paths, |
| 113 | time.Second, |
| 114 | ) |
| 115 | if release != nil { |
| 116 | release() |
| 117 | } |
| 118 | if err == nil || !strings.Contains(err.Error(), "prepared backup") { |
| 119 | t.Fatalf("claim error = %v, want rollback-backup drift rejection", err) |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | func TestClaimPendingFileUpdateRejectsPreparedMissingFileAppearing(t *testing.T) { |
| 124 | t.Setenv("REASONIX_HOME", t.TempDir()) |
| 125 | dir, err := filepath.EvalSymlinks(t.TempDir()) |
| 126 | if err != nil { |
| 127 | t.Fatal(err) |
| 128 | } |
| 129 | target := filepath.Join(dir, "reasonix-desktop") |
| 130 | guard := filepath.Join(dir, "reasonix-guard") |
| 131 | added := filepath.Join(dir, "reasonix-update-helper.exe") |
| 132 | for _, path := range []string{target, guard} { |
| 133 | if err := os.WriteFile(path, []byte(filepath.Base(path)), 0o700); err != nil { |
| 134 | t.Fatal(err) |
| 135 | } |
| 136 | } |
| 137 | tx, err := PrepareFileUpdate("v1", "v2", target, guard, added) |
| 138 | if err != nil { |
| 139 | t.Fatal(err) |
| 140 | } |
| 141 | if err := os.WriteFile(added, []byte("appeared"), 0o700); err != nil { |
| 142 | t.Fatal(err) |
| 143 | } |
| 144 | _, release, err := ClaimPendingFileUpdate( |
| 145 | tx.ToVersion, |
| 146 | tx.CreatedAt, |
| 147 | guard, |
| 148 | []string{target, guard, added}, |
| 149 | time.Second, |
| 150 | ) |
| 151 | if release != nil { |
| 152 | release() |
| 153 | } |
| 154 | if err == nil || !strings.Contains(err.Error(), "appeared after backup") { |
| 155 | t.Fatalf("claim error = %v, want prepared-missing drift rejection", err) |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | func TestReadPendingFileUpdateRejectsDuplicateReleaseTarget(t *testing.T) { |
| 160 | tx, launcher, _ := prepareTestFileUpdateClaim(t) |
| 161 | tx.Files = append(tx.Files, tx.Files[0]) |
| 162 | if err := overwritePendingUpdateForTest(tx); err != nil { |
| 163 | t.Fatal(err) |
| 164 | } |
| 165 | if _, err := readPendingUpdateForLauncher(launcher); err == nil || !strings.Contains(err.Error(), "duplicate release file") { |
| 166 | t.Fatalf("read error = %v, want duplicate release target rejection", err) |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | func TestClaimPendingFileUpdateRejectsReplacementWhileLocking(t *testing.T) { |
| 171 | tx, launcher, paths := prepareTestFileUpdateClaim(t) |
| 172 | holder, err := LockRepairMutations(paths...) |
| 173 | if err != nil { |
| 174 | t.Fatal(err) |
| 175 | } |
| 176 | entered := make(chan struct{}, 1) |
| 177 | originalBeforeLock := repairMutationBeforeLock |
| 178 | repairMutationBeforeLock = func([]string) { |
| 179 | entered <- struct{}{} |
| 180 | } |
| 181 | t.Cleanup(func() { repairMutationBeforeLock = originalBeforeLock }) |
| 182 | |
| 183 | done := make(chan error, 1) |
| 184 | go func() { |
| 185 | _, release, err := ClaimPendingFileUpdate( |
| 186 | tx.ToVersion, |
| 187 | tx.CreatedAt, |
| 188 | launcher, |
| 189 | paths, |
| 190 | 2*time.Second, |
| 191 | ) |
| 192 | if release != nil { |
| 193 | release() |
| 194 | } |
| 195 | done <- err |
| 196 | }() |
| 197 | |
| 198 | select { |
| 199 | case <-entered: |
| 200 | case err := <-done: |
| 201 | holder() |
| 202 | t.Fatalf("claim failed before taking release-unit locks: %v", err) |
| 203 | } |
| 204 | replacement := *tx |
| 205 | replacement.CreatedAt = time.Now().UTC().Add(time.Second).Format(time.RFC3339Nano) |
| 206 | if err := overwritePendingUpdateForTest(&replacement); err != nil { |
| 207 | holder() |
| 208 | t.Fatal(err) |
| 209 | } |
| 210 | holder() |
| 211 | |
| 212 | err = <-done |
| 213 | if err == nil || !strings.Contains(err.Error(), "changed while waiting") { |
| 214 | t.Fatalf("claim error = %v, want replacement rejection", err) |
| 215 | } |
| 216 | } |
| 217 | |
| 218 | func TestClaimPendingFileUpdateHoldsCompleteReleaseUnit(t *testing.T) { |
| 219 | tx, launcher, paths := prepareTestFileUpdateClaim(t) |
| 220 | _, release, err := ClaimPendingFileUpdate( |
| 221 | tx.ToVersion, |
| 222 | tx.CreatedAt, |
| 223 | launcher, |
| 224 | paths, |
| 225 | time.Second, |
| 226 | ) |
| 227 | if err != nil { |
| 228 | t.Fatal(err) |
| 229 | } |
| 230 | |
| 231 | waiter := make(chan error, 1) |
| 232 | go func() { |
| 233 | unlock, err := LockRepairMutationsTimeout(time.Second, paths...) |
| 234 | if err == nil { |
| 235 | unlock() |
| 236 | } |
| 237 | waiter <- err |
| 238 | }() |
| 239 | select { |
| 240 | case err := <-waiter: |
| 241 | release() |
| 242 | t.Fatalf("release-unit lock escaped the claim: %v", err) |
| 243 | case <-time.After(300 * time.Millisecond): |
| 244 | } |
| 245 | release() |
| 246 | if err := <-waiter; err != nil { |
| 247 | t.Fatalf("release-unit lock after claim: %v", err) |
| 248 | } |
| 249 | } |
| 250 |