| 1 | // Run: tsx src/__tests__/crash-reporting.test.ts |
| 2 | |
| 3 | import { |
| 4 | buildCrashPayload, |
| 5 | buildPerformancePayload, crashErrorFamily, |
| 6 | formatLongTaskAttribution, |
| 7 | formatPerformanceContext, |
| 8 | globalCrashReportReason, |
| 9 | isOpaqueScriptErrorEvent, |
| 10 | installPerformancePressureMonitor, |
| 11 | normalizeCrashError, |
| 12 | opaqueScriptFingerprintHint, |
| 13 | parseReportedPerf, |
| 14 | performanceLabelForReason, |
| 15 | performanceFingerprintHintForReason, |
| 16 | serializeReportedPerf, |
| 17 | shouldPromptForLongTasks, |
| 18 | shouldPromptForEventLoopLag, |
| 19 | shouldRecordEventLoopLagSample, |
| 20 | shouldPromptForPerformanceLabel, |
| 21 | shouldReportGlobalCrashEvent, |
| 22 | shouldRecordLongTaskSample, |
| 23 | topFrameFromStack, |
| 24 | type PerformanceSnapshot |
| 25 | } from "../lib/crash"; |
| 26 | import { writeClipboardText } from "../lib/clipboard"; |
| 27 | import { installObjectHasOwnPolyfill } from "../lib/compat"; |
| 28 | import { readFileSync } from "node:fs"; |
| 29 | import { dirname, resolve } from "node:path"; |
| 30 | import { fileURLToPath } from "node:url"; |
| 31 | import { installDesktopHostStub } from "./desktopHostStub"; |
| 32 | |
| 33 | let passed = 0; |
| 34 | let failed = 0; |
| 35 | |
| 36 | function eq(a: unknown, b: unknown, label: string) { |
| 37 | if (JSON.stringify(a) === JSON.stringify(b)) { |
| 38 | process.stdout.write(` PASS ${label}\n`); |
| 39 | passed += 1; |
| 40 | } else { |
| 41 | process.stdout.write(` FAIL ${label}: expected ${JSON.stringify(b)}, got ${JSON.stringify(a)}\n`); |
| 42 | failed += 1; |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | console.log("\ncrash reporting"); |
| 47 | |
| 48 | const testDir = dirname(fileURLToPath(import.meta.url)); |
| 49 | const mainSource = readFileSync(resolve(testDir, "../main.tsx"), "utf8"); |
| 50 | eq(mainSource.startsWith('import "./lib/compat";'), true, "installs WebKit compatibility before application imports"); |
| 51 | const legacyObject = function LegacyObject() {} as unknown as ObjectConstructor & { |
| 52 | hasOwn?: (value: object, property: PropertyKey) => boolean; |
| 53 | }; |
| 54 | installObjectHasOwnPolyfill(legacyObject); |
| 55 | eq(legacyObject.hasOwn?.({ own: true }, "own"), true, "Object.hasOwn polyfill accepts own properties"); |
| 56 | eq(legacyObject.hasOwn?.(Object.create({ inherited: true }), "inherited"), false, "Object.hasOwn polyfill rejects inherited properties"); |
| 57 | for (const file of ["../components/VirtualMenu.tsx", "../components/WorkspacePanel.tsx", "../components/editors/HljsDiff.tsx", "../components/editors/LineNumberCode.tsx"]) { |
| 58 | const source = readFileSync(resolve(testDir, file), "utf8"); |
| 59 | const fileParts = file.split("/"); |
| 60 | const label = fileParts[fileParts.length - 1]; |
| 61 | eq( |
| 62 | source.includes("directDomUpdates: true") && |
| 63 | source.includes("ref={virtualizer.containerRef}") && |
| 64 | !source.includes("transform: `translateY(${row.start}px)`"), |
| 65 | true, |
| 66 | `${label} avoids measurement-triggered React update loops` |
| 67 | ); |
| 68 | } |
| 69 | |
| 70 | const err = new TypeError("invalid argument"); |
| 71 | err.stack = "TypeError: invalid argument\n at submit (src/App.tsx:12:3)"; |
| 72 | const payload = buildCrashPayload("unhandledrejection", err, "component stack"); |
| 73 | |
| 74 | eq(normalizeCrashError("boom"), { errorType: "string", errorMessage: "boom" }, "normalizes string reasons"); |
| 75 | eq(topFrameFromStack(err.stack), "at submit (src/App.tsx:12:3)", "extracts top app frame"); |
| 76 | eq(payload.kind, "exception", "unhandled rejection is a nonfatal exception kind"); |
| 77 | eq(payload.source, "frontend.global", "global handler payload identifies source"); |
| 78 | eq(payload.errorType, "TypeError", "captures error type"); |
| 79 | eq(payload.componentStack, "component stack", "captures component stack"); |
| 80 | eq(crashErrorFamily("Maximum update depth exceeded"), "react.maximum_update_depth", "classifies React nested update failures across bundles"); |
| 81 | eq(crashErrorFamily("network failed"), undefined, "does not merge unrelated failures into the React error family"); |
| 82 | eq(payload.message.includes("[unhandledrejection]"), true, "keeps human-readable message"); |
| 83 | eq(shouldReportGlobalCrashEvent({ defaultPrevented: false }), true, "reports unhandled global events by default"); |
| 84 | eq(shouldReportGlobalCrashEvent({ defaultPrevented: true }), false, "ignores global events already handled by a filter"); |
| 85 | eq( |
| 86 | shouldReportGlobalCrashEvent({ defaultPrevented: false, message: "ResizeObserver loop limit exceeded", }), |
| 87 | false, |
| 88 | "ignores Chromium ResizeObserver loop limit notices", |
| 89 | ); |
| 90 | eq( |
| 91 | shouldReportGlobalCrashEvent({ defaultPrevented: false, message: "Minified React error #520; recovered synchronously", }), |
| 92 | false, |
| 93 | "suppresses React's recoverable concurrent-render diagnostic", |
| 94 | ); |
| 95 | const supersededRemoteStatusError = new Error('remote tab "remote-1" status was superseded by newer runtime state'); |
| 96 | eq( |
| 97 | shouldReportGlobalCrashEvent({ defaultPrevented: false, reason: supersededRemoteStatusError, }), |
| 98 | false, |
| 99 | "suppresses superseded remote status errors delivered through PromiseRejectionEvent.reason", |
| 100 | ); |
| 101 | eq( |
| 102 | shouldReportGlobalCrashEvent({ defaultPrevented: false, reason: new Error("remote status transport failed"), }), |
| 103 | true, |
| 104 | "reports unrelated PromiseRejectionEvent reasons", |
| 105 | ); |
| 106 | eq( |
| 107 | shouldReportGlobalCrashEvent({ |
| 108 | defaultPrevented: false, |
| 109 | message: "ResizeObserver loop completed with undelivered notifications.", |
| 110 | }), |
| 111 | false, |
| 112 | "ignores Chromium ResizeObserver undelivered notification notices", |
| 113 | ); |
| 114 | eq(isOpaqueScriptErrorEvent({ defaultPrevented: false, message: "Script error.", }), true, "identifies locationless opaque script errors",); |
| 115 | eq( |
| 116 | isOpaqueScriptErrorEvent({ defaultPrevented: false, message: "Script error.", filename: "wails://wails/assets/index.js", }), |
| 117 | false, |
| 118 | "keeps located script errors out of opaque grouping", |
| 119 | ); |
| 120 | const opaqueHint = opaqueScriptFingerprintHint( |
| 121 | "wails://wails.localhost/tabs/123456789?token=private#abcdef123456", |
| 122 | [{ t: 1, cat: "tab hydration", msg: "private path /Users/alice/project" }], |
| 123 | "0123456789abcdefdeadbeef" |
| 124 | ); |
| 125 | eq(opaqueHint, "build:0123456789abcdef|view:wails://wails.localhost/tabs/_|cats:tab_hydration", "opaque grouping uses stable safe context"); |
| 126 | eq(opaqueHint.includes("alice"), false, "opaque grouping never includes breadcrumb messages"); |
| 127 | eq( |
| 128 | shouldReportGlobalCrashEvent({ defaultPrevented: false, error: new Error("ResizeObserver loop limit exceeded"), }), |
| 129 | false, |
| 130 | "ignores ResizeObserver notices delivered through ErrorEvent.error", |
| 131 | ); |
| 132 | eq( |
| 133 | shouldReportGlobalCrashEvent({ |
| 134 | defaultPrevented: false, |
| 135 | message: "", |
| 136 | error: new Error("ResizeObserver loop limit exceeded"), |
| 137 | }), |
| 138 | false, |
| 139 | "checks ErrorEvent.error when ErrorEvent.message is empty", |
| 140 | ); |
| 141 | eq( |
| 142 | shouldReportGlobalCrashEvent({ |
| 143 | defaultPrevented: false, |
| 144 | message: "Uncaught Error", |
| 145 | error: new Error("ResizeObserver loop limit exceeded"), |
| 146 | }), |
| 147 | false, |
| 148 | "checks ErrorEvent.error when ErrorEvent.message is a wrapper", |
| 149 | ); |
| 150 | eq( |
| 151 | globalCrashReportReason({ |
| 152 | defaultPrevented: false, |
| 153 | message: "Script error.", |
| 154 | filename: "wails://wails/assets/index-abc123.js", |
| 155 | lineno: 42, |
| 156 | colno: 7, |
| 157 | }), |
| 158 | "Script error.\nfilename=wails://wails/assets/index-abc123.js lineno=42 colno=7", |
| 159 | "adds script location to opaque window.error messages", |
| 160 | ); |
| 161 | eq( |
| 162 | globalCrashReportReason({ |
| 163 | defaultPrevented: false, |
| 164 | message: "Script error.", |
| 165 | }), |
| 166 | "Script error.", |
| 167 | "keeps opaque script errors bare when WebView provides no location", |
| 168 | ); |
| 169 | |
| 170 | const perf: PerformanceSnapshot = { |
| 171 | reason: "event loop lag 1300ms", |
| 172 | uptimeMs: 42_000, |
| 173 | visibility: "visible", |
| 174 | focused: true, |
| 175 | online: true, |
| 176 | hardwareConcurrency: 10, |
| 177 | deviceMemoryGb: 16, |
| 178 | jsHeap: { usedMb: 700, totalMb: 780, limitMb: 900, usagePercent: 77.7 }, |
| 179 | eventLoopLag: { currentMs: 1300, maxMs: 1300, avgMs: 220, samples: 6 }, |
| 180 | longTasks: { |
| 181 | count: 3, |
| 182 | totalMs: 1800, |
| 183 | maxMs: 900, |
| 184 | recent: [ |
| 185 | { startMs: 40_000, durationMs: 900 }, |
| 186 | { startMs: 41_000, durationMs: 500 }, |
| 187 | ], |
| 188 | }, |
| 189 | connection: { effectiveType: "4g", rttMs: 50, downlinkMbps: 20, saveData: false, }, |
| 190 | }; |
| 191 | const perfPayload = buildPerformancePayload(perf); |
| 192 | const processReport = formatPerformanceContext({ ...perf, cpuProfile: { status: "unavailable" }, processes: { |
| 193 | scope: "electron", samples: [{ ageMs: 10, intervalMs: null, processes: [{ pid: 42, type: "Tab", cpuPercent: null, workingSetMb: 200, privateMb: null, },], },], |
| 194 | }, }); |
| 195 | eq(processReport.includes("Go service excluded"), true, "report identifies incomplete process coverage"); |
| 196 | eq(processReport.includes("PID 42 Tab: CPU unavailable"), true, "missing CPU is not reported as zero"); |
| 197 | eq(processReport.includes("CPU profile after trigger: unavailable"), true, "missing profiler is explicit and does not claim to reconstruct the event"); |
| 198 | eq(perfPayload.kind, "performance", "performance pressure reports use performance kind"); |
| 199 | eq(perfPayload.source, "frontend.performance", "performance pressure reports identify source"); |
| 200 | eq(perfPayload.label, "performance.lag", "performance pressure reports partition by stable pressure label"); |
| 201 | eq(perfPayload.errorType, "PerformancePressure", "performance pressure reports use a stable error type"); |
| 202 | eq(perfPayload.errorMessage.includes("1300"), false, "performance fingerprint message avoids dynamic durations"); |
| 203 | eq(perfPayload.label.includes("1300"), false, "performance fingerprint label avoids dynamic durations"); |
| 204 | eq(formatPerformanceContext(perf).includes("long tasks: 3"), true, "formats long task context"); |
| 205 | eq(perfPayload.message.includes("event loop lag 1300ms"), true, "payload message keeps lag context"); |
| 206 | eq(performanceLabelForReason("long task 900ms"), "performance.longtask", "labels long task pressure"); |
| 207 | eq(performanceLabelForReason("js heap 87% of limit"), "performance.heap", "labels heap pressure"); |
| 208 | eq(performanceFingerprintHintForReason("js heap 87% of limit"), "frontend.performance.heap.high", "tracks high heap pressure separately"); |
| 209 | eq(performanceFingerprintHintForReason("js heap 97% of limit"), "frontend.performance.heap.critical", "tracks critical heap pressure separately"); |
| 210 | eq(performanceFingerprintHintForReason("long task 900ms"), undefined, "does not repartition non-heap performance groups"); |
| 211 | eq( |
| 212 | buildPerformancePayload({ ...perf, reason: "js heap 97% of limit" }).fingerprintHint, |
| 213 | "frontend.performance.heap.critical", |
| 214 | "adds the heap tier to the report fingerprint" |
| 215 | ); |
| 216 | eq(shouldRecordLongTaskSample(14_000, 900, 15_000), false, "ignores startup long tasks before grace ends"); |
| 217 | eq(shouldRecordLongTaskSample(16_000, 40, 15_000), false, "ignores short long-task observer entries"); |
| 218 | eq(shouldRecordLongTaskSample(16_000, 900, 15_000), true, "records post-grace long tasks"); |
| 219 | eq(shouldRecordLongTaskSample(60_000, 900, 15_000, true, 20_000), false, "ignores long tasks while the window is hidden"); |
| 220 | eq(shouldRecordLongTaskSample(23_000, 900, 15_000, false, 20_000), false, "ignores long tasks immediately after visibility resumes"); |
| 221 | eq(shouldRecordLongTaskSample(26_000, 900, 15_000, false, 20_000), true, "records long tasks after the visibility resume grace period"); |
| 222 | eq(shouldRecordLongTaskSample(570_000, 92, 15_000, false, 20_000, false), false, "ignores long tasks while unfocused"); |
| 223 | eq(shouldPromptForLongTasks({ count: 1, totalMs: 850, maxMs: 850 }), true, "prompts on a single 800ms+ long task"); |
| 224 | eq( |
| 225 | shouldPromptForLongTasks({ count: 16, totalMs: 1_584, maxMs: 237 }), |
| 226 | false, |
| 227 | "tolerates streaming-render bursts below the 3s cumulative budget" |
| 228 | ); |
| 229 | eq(shouldPromptForLongTasks({ count: 16, totalMs: 3_100, maxMs: 237 }), true, "prompts past the 3s cumulative budget"); |
| 230 | eq(shouldPromptForLongTasks({ count: 2, totalMs: 3_100, maxMs: 790 }), false, "cumulative path needs at least 3 tasks"); |
| 231 | eq(shouldPromptForEventLoopLag([6_007]), false, "ignores an isolated lag spike without long-task evidence"); |
| 232 | eq(shouldPromptForEventLoopLag([1_350, 1_420]), true, "prompts on consecutive lag samples"); |
| 233 | eq( |
| 234 | shouldPromptForEventLoopLag([1_350], { count: 1, totalMs: 900, maxMs: 900 }), |
| 235 | true, |
| 236 | "prompts on a lag spike corroborated by a blocking long task" |
| 237 | ); |
| 238 | eq( |
| 239 | shouldPromptForEventLoopLag([1_350], { count: 2, totalMs: 300, maxMs: 180 }), |
| 240 | false, |
| 241 | "does not treat unrelated short long tasks as lag corroboration" |
| 242 | ); |
| 243 | |
| 244 | eq(formatLongTaskAttribution("self", [{ containerType: "window" }]), "", "hides the no-signal self/window attribution"); |
| 245 | eq(formatLongTaskAttribution("unknown", undefined), "", "hides unknown attribution"); |
| 246 | eq( |
| 247 | formatLongTaskAttribution("cross-origin-descendant", [{ containerType: "iframe", containerSrc: "https://embed.example" }]), |
| 248 | "cross-origin-descendant iframe:https://embed.example", |
| 249 | "surfaces cross-context culprits with their container" |
| 250 | ); |
| 251 | |
| 252 | |
| 253 | const framesSnapshot: PerformanceSnapshot = { |
| 254 | ...perf, |
| 255 | longTasks: { |
| 256 | count: 1, |
| 257 | totalMs: 900, |
| 258 | maxMs: 900, |
| 259 | recent: [{ startMs: 40_000, durationMs: 900, attribution: "cross-origin-descendant", },], |
| 260 | }, |
| 261 | longTaskFrames: [{ label: "post (vendor-markdown.js:1)", samples: 42 }], |
| 262 | }; |
| 263 | eq( |
| 264 | formatPerformanceContext(framesSnapshot).includes("900ms @ 40.0s (cross-origin-descendant)"), |
| 265 | true, |
| 266 | "recent long tasks carry their attribution" |
| 267 | ); |
| 268 | eq( |
| 269 | formatPerformanceContext(framesSnapshot).includes("long task top frames (sampled):\n 42x post (vendor-markdown.js:1)"), |
| 270 | true, |
| 271 | "formats sampled top frames into the report context" |
| 272 | ); |
| 273 | eq( |
| 274 | formatPerformanceContext(perf).includes("long task top frames"), |
| 275 | false, |
| 276 | "omits the frames section when no profile was captured" |
| 277 | ); |
| 278 | |
| 279 | eq(shouldRecordEventLoopLagSample(true, 60_000), false, "ignores event-loop lag while the window is hidden"); |
| 280 | eq(shouldRecordEventLoopLagSample(false, 3_000), false, "ignores event-loop lag immediately after visibility resumes"); |
| 281 | eq(shouldRecordEventLoopLagSample(false, 6_000), true, "records event-loop lag after the visibility resume grace period"); |
| 282 | eq(shouldRecordEventLoopLagSample(false, 60_000, false), false, "ignores event-loop lag while unfocused"); |
| 283 | eq( |
| 284 | shouldRecordEventLoopLagSample(false, 60_000, true, 3_000), |
| 285 | false, |
| 286 | "ignores event-loop lag immediately after focus resumes" |
| 287 | ); |
| 288 | eq(shouldRecordEventLoopLagSample(false, 60_000, true, 6_000), true, "records event-loop lag once both resume grace windows pass"); |
| 289 | |
| 290 | eq(shouldPromptForPerformanceLabel(false, 11 * 60_000, false), true, "prompts an unhandled label past cooldown while visible"); |
| 291 | eq(shouldPromptForPerformanceLabel(true, 11 * 60_000, false), false, "suppresses an already reported or dismissed label"); |
| 292 | eq(shouldPromptForPerformanceLabel(false, 5 * 60_000, false), false, "respects the prompt cooldown window"); |
| 293 | eq(shouldPromptForPerformanceLabel(false, 11 * 60_000, true), false, "never prompts while the window is hidden"); |
| 294 | eq(shouldPromptForPerformanceLabel(false, 11 * 60_000, false, false), false, "never prompts while unfocused"); |
| 295 | |
| 296 | { |
| 297 | let interval: (() => void) | undefined; |
| 298 | let now = 0; |
| 299 | let focused = true; |
| 300 | let promptPainted = false; |
| 301 | const previousWindow = (globalThis as any).window; |
| 302 | const previousDocument = (globalThis as any).document; |
| 303 | const previousPerformance = (globalThis as any).performance; |
| 304 | const previousPerformanceObserver = (globalThis as any).PerformanceObserver; |
| 305 | (globalThis as any).performance = { now: () => now }; |
| 306 | // Listeners are intentionally no-ops: this exercises the sampler's own |
| 307 | // hidden/unfocused self-observation, i.e. the case where a throttled tick |
| 308 | // runs before the visibilitychange/focus task is delivered (the race behind |
| 309 | // the field reports #6419/#5909). |
| 310 | (globalThis as any).window = { |
| 311 | location: { protocol: "app:", host: "test", pathname: "/", hash: "" }, |
| 312 | addEventListener: () => {}, |
| 313 | setInterval: (cb: () => void) => { |
| 314 | interval = cb; |
| 315 | return 1; |
| 316 | }, |
| 317 | }; |
| 318 | // The pressure monitor only runs under a desktop shell. |
| 319 | installDesktopHostStub({}); |
| 320 | (globalThis as any).document = { |
| 321 | visibilityState: "visible", |
| 322 | hasFocus: () => focused, |
| 323 | addEventListener: () => {}, |
| 324 | getElementById: () => { |
| 325 | promptPainted = true; |
| 326 | return null; |
| 327 | }, |
| 328 | }; |
| 329 | (globalThis as any).PerformanceObserver = undefined; |
| 330 | installPerformancePressureMonitor(); |
| 331 | now = 26_000; |
| 332 | interval?.(); |
| 333 | eq(promptPainted, false, "first post-grace event-loop tick primes without reporting startup backlog"); |
| 334 | |
| 335 | // Hidden-view timer throttling defers ticks; when the view is shown again the |
| 336 | // overdue tick can run before any visibilitychange handler. The accumulated |
| 337 | // delay must read as suspension, not as an event-loop lag report. |
| 338 | now = 27_000; |
| 339 | interval?.(); // records a 0ms sample in the steady visible state |
| 340 | (globalThis as any).document.visibilityState = "hidden"; |
| 341 | now = 47_000; |
| 342 | interval?.(); // hidden tick: observed hidden, sample dropped (visibilitychange never delivered) |
| 343 | (globalThis as any).document.visibilityState = "visible"; |
| 344 | now = 49_500; |
| 345 | try { |
| 346 | interval?.(); // resume-boundary tick, 1.5s overdue, visibilitychange still not delivered |
| 347 | } catch { |
| 348 | // a regressed sampler paints into the stubbed DOM and throws; the eq below reports it |
| 349 | } |
| 350 | eq(promptPainted, false, "resume-boundary tick does not report suspended-timer delay as event-loop lag"); |
| 351 | |
| 352 | now = 50_500; |
| 353 | interval?.(); // re-primes after the restart |
| 354 | now = 51_500; |
| 355 | interval?.(); |
| 356 | now = 52_500; |
| 357 | interval?.(); |
| 358 | now = 53_500; |
| 359 | interval?.(); |
| 360 | now = 54_500; |
| 361 | interval?.(); // grace over, steady 0ms samples resume |
| 362 | |
| 363 | // Focus-only cycle, self-observed: the window loses focus (a throttled tick |
| 364 | // observes it before any blur task), the app naps, and on refocus the overdue |
| 365 | // tick runs before the focus task. Without focus tracking this reads as a |
| 366 | // multi-second lag spike and prompts (the #6138 path #6424 must absorb). |
| 367 | focused = false; |
| 368 | now = 59_000; |
| 369 | interval?.(); // unfocused tick: arms the resume restart, records nothing |
| 370 | focused = true; |
| 371 | now = 61_500; |
| 372 | try { |
| 373 | interval?.(); // refocus-boundary tick, 1.5s overdue, focus task not yet delivered |
| 374 | } catch { |
| 375 | // a regressed sampler paints into the stubbed DOM and throws; the eq below reports it |
| 376 | } |
| 377 | eq(promptPainted, false, "refocus-boundary tick does not report napped-timer delay as event-loop lag"); |
| 378 | |
| 379 | now = 62_600; |
| 380 | interval?.(); // re-primes |
| 381 | now = 63_600; |
| 382 | interval?.(); |
| 383 | now = 64_600; |
| 384 | interval?.(); |
| 385 | now = 65_600; |
| 386 | interval?.(); |
| 387 | now = 66_600; |
| 388 | interval?.(); // both grace windows over, steady samples resume |
| 389 | |
| 390 | // A single delayed callback can still be a timer discontinuity. It is held |
| 391 | // until the next delayed sample (or a long-task entry) corroborates the freeze. |
| 392 | let promptAttempted = false; |
| 393 | (globalThis as any).document.getElementById = () => { |
| 394 | promptAttempted = true; |
| 395 | throw new Error("stop before painting into the stubbed DOM"); |
| 396 | }; |
| 397 | now = 112_600; |
| 398 | try { |
| 399 | interval?.(); // isolated 45s delay: not enough evidence by itself |
| 400 | } catch { |
| 401 | // paint intentionally stopped at getElementById |
| 402 | } |
| 403 | eq(promptAttempted, false, "an isolated settled-state timer discontinuity does not prompt"); |
| 404 | now = 115_100; |
| 405 | try { |
| 406 | interval?.(); // a second consecutive 1.5s delay corroborates sustained lag |
| 407 | } catch { |
| 408 | // paint intentionally stopped at getElementById |
| 409 | } |
| 410 | eq(promptAttempted, true, "consecutive settled-state lag still prompts"); |
| 411 | (globalThis as any).window = previousWindow; |
| 412 | (globalThis as any).document = previousDocument; |
| 413 | (globalThis as any).performance = previousPerformance; |
| 414 | (globalThis as any).PerformanceObserver = previousPerformanceObserver; |
| 415 | } |
| 416 | |
| 417 | const reportedPerf = serializeReportedPerf(new Set(["performance.lag"]), "abc123"); |
| 418 | eq([...parseReportedPerf(reportedPerf, "abc123")], ["performance.lag"], "round-trips reported labels for the same build"); |
| 419 | eq([...parseReportedPerf(reportedPerf, "def456")], [], "re-surfaces reported labels on a new build"); |
| 420 | eq([...parseReportedPerf(null, "abc123")], [], "tolerates missing storage"); |
| 421 | eq([...parseReportedPerf("{not json", "abc123")], [], "tolerates corrupt storage"); |
| 422 | |
| 423 | { |
| 424 | const originalNavigator = Object.getOwnPropertyDescriptor(globalThis, "navigator"); |
| 425 | const previousWindow = (globalThis as any).window; |
| 426 | const previousHTMLElement = (globalThis as any).HTMLElement; |
| 427 | const setNavigator = (value: unknown) => |
| 428 | Object.defineProperty(globalThis, "navigator", { |
| 429 | value, |
| 430 | configurable: true, |
| 431 | }); |
| 432 | |
| 433 | setNavigator({ clipboard: { writeText: async () => {} } }); |
| 434 | eq(await writeClipboardText("report"), true, "copy reports success through the async clipboard API"); |
| 435 | |
| 436 | const rejectingClipboard = { |
| 437 | clipboard: { |
| 438 | writeText: async () => { |
| 439 | throw new Error("denied"); |
| 440 | }, |
| 441 | }, |
| 442 | }; |
| 443 | setNavigator(rejectingClipboard); |
| 444 | const bridgeWrites: string[] = []; |
| 445 | (globalThis as any).window = {}; |
| 446 | installDesktopHostStub({}, { clipboardWrites: bridgeWrites }); |
| 447 | eq(await writeClipboardText("report"), true, "copy falls back to the desktop native clipboard bridge when the clipboard API rejects"); |
| 448 | eq(bridgeWrites, ["report"], "the rejected clipboard write goes through the native bridge exactly once"); |
| 449 | |
| 450 | setNavigator(rejectingClipboard); |
| 451 | const execCommands: string[] = []; |
| 452 | (globalThis as any).window = {}; |
| 453 | (globalThis as any).HTMLElement = class {}; |
| 454 | (globalThis as any).document = { |
| 455 | activeElement: undefined, |
| 456 | getSelection: () => null, |
| 457 | createElement: () => ({ |
| 458 | value: "", |
| 459 | style: {}, |
| 460 | setAttribute: () => {}, |
| 461 | select: () => {}, |
| 462 | remove: () => {}, |
| 463 | }), |
| 464 | body: { appendChild: () => {} }, |
| 465 | execCommand: (command: string) => { |
| 466 | execCommands.push(command); |
| 467 | return true; |
| 468 | }, |
| 469 | }; |
| 470 | eq(await writeClipboardText("report"), true, "copy falls back to execCommand when both the clipboard API and bridge are unavailable"); |
| 471 | eq(execCommands, ["copy"], "the last-resort path drives the execCommand copy"); |
| 472 | |
| 473 | // Some WebViews reject execCommand("copy") with NotAllowedError. It must |
| 474 | // surface as a resolved `false`, never a thrown rejection — otherwise the crash |
| 475 | // overlay's Copy button stays disabled (the #6388 unresponsive symptom). |
| 476 | let removed = false; |
| 477 | (globalThis as any).document = { |
| 478 | activeElement: undefined, |
| 479 | getSelection: () => null, |
| 480 | createElement: () => ({ value: "", style: {}, setAttribute: () => {}, select: () => {}, remove: () => { removed = true; }, }), |
| 481 | body: { appendChild: () => {} }, |
| 482 | execCommand: () => { |
| 483 | throw new DOMException("not allowed", "NotAllowedError"); |
| 484 | }, |
| 485 | }; |
| 486 | let threw = false; |
| 487 | let result: boolean | undefined; |
| 488 | try { |
| 489 | result = await writeClipboardText("report"); |
| 490 | } catch { |
| 491 | threw = true; |
| 492 | } |
| 493 | eq(threw, false, "writeClipboardText never rejects when execCommand throws"); |
| 494 | eq(result, false, "an execCommand that throws resolves to a failed copy"); |
| 495 | eq(removed, true, "the hidden textarea is still cleaned up when execCommand throws"); |
| 496 | delete (globalThis as any).document; |
| 497 | |
| 498 | (globalThis as any).window = previousWindow; |
| 499 | if (previousHTMLElement === undefined) delete (globalThis as any).HTMLElement; |
| 500 | else (globalThis as any).HTMLElement = previousHTMLElement; |
| 501 | if (originalNavigator) Object.defineProperty(globalThis, "navigator", originalNavigator); |
| 502 | else delete (globalThis as any).navigator; |
| 503 | } |
| 504 | |
| 505 | console.log(`\n${passed} passed, ${failed} failed, ${passed + failed} total`); |
| 506 | if (failed > 0) process.exit(1); |
| 507 |