fix: implement isDestroyed on MockBrowserWindow #863
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ethanndickson
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Dec 3, 2025
ammario
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## Summary Add comprehensive E2E tests covering window lifecycle, IPC robustness, streaming edge cases, persistence, and error display. These tests target recent regression patterns. ## Recent Regressions Addressed | Regression | Test Coverage | |------------|---------------| | `MockBrowserWindow.isDestroyed()` (#863) | IPC stability tests verify no crashes during heavy IPC | | IPC send to destroyed window (#859) | `ipcRobustness.spec.ts` - concurrent IPC operations | | Duplicate IPC handler registration (#851) | `windowLifecycle.spec.ts` - rapid IPC calls test | | Stream error handling (#880) | `streamEdgeCases.spec.ts` + `errorDisplay.spec.ts` | ## New Test Files (26 tests total) - **windowLifecycle.spec.ts** (6 tests): window operations, IPC stability under load - **ipcRobustness.spec.ts** (4 tests): concurrent IPC calls, state preservation - **streamEdgeCases.spec.ts** (6 tests): streaming during UI operations, error scenarios - **persistence.spec.ts** (4 tests): chat history, settings, mode persistence - **errorDisplay.spec.ts** (6 tests): error messages display, recovery flows ## Infrastructure Changes - **Error mock scenarios**: rate limit, server error, network error scenarios - **Stream timeline capture**: now handles `stream-error` events (previously only `stream-end`) - **CI matrix**: Linux (comprehensive, 47 tests) + macOS (window lifecycle, 6 tests) ## CI Configuration ```yaml matrix: include: - os: linux # Comprehensive E2E tests - os: macos # Window lifecycle tests only (platform-dependent) ``` _Generated with `mux`_
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