}

});

it("preserves an existing nonzero exit code on async EPIPE", () => {

const exitSpy = vi.spyOn(process, "exit").mockImplementation((() => {}) as typeof process.exit);

const originalExitCode = process.exitCode;

try {

process.exitCode = 2;

setLoggerOverride({ level: "info", file: tempLogPath() });

loggingState.streamErrorHandlersInstalled = false;

enableConsoleCapture();

const epipe = new Error("write EPIPE") as NodeJS.ErrnoException;

epipe.code = "EPIPE";

process.stderr.emit("error", epipe);

expect(exitSpy).toHaveBeenCalledWith(2);

} finally {

process.exitCode = originalExitCode;

exitSpy.mockRestore();

}

});

it("rethrows non-EPIPE errors on stdout", () => {

setLoggerOverride({ level: "info", file: tempLogPath() });

enableConsoleCapture();