openclaw/src/terminal/stream-writer.test.ts
2026-01-21 03:03:29 +00:00

43 lines
1.3 KiB
TypeScript

import { describe, expect, it, vi } from "vitest";
import { createSafeStreamWriter } from "./stream-writer.js";
describe("createSafeStreamWriter", () => {
it("signals broken pipes and closes the writer", () => {
const onBrokenPipe = vi.fn();
const writer = createSafeStreamWriter({ onBrokenPipe });
const stream = {
write: vi.fn(() => {
const err = new Error("EPIPE") as NodeJS.ErrnoException;
err.code = "EPIPE";
throw err;
}),
} as unknown as NodeJS.WriteStream;
expect(writer.writeLine(stream, "hello")).toBe(false);
expect(writer.isClosed()).toBe(true);
expect(onBrokenPipe).toHaveBeenCalledTimes(1);
onBrokenPipe.mockClear();
expect(writer.writeLine(stream, "again")).toBe(false);
expect(onBrokenPipe).toHaveBeenCalledTimes(0);
});
it("treats broken pipes from beforeWrite as closed", () => {
const onBrokenPipe = vi.fn();
const writer = createSafeStreamWriter({
onBrokenPipe,
beforeWrite: () => {
const err = new Error("EIO") as NodeJS.ErrnoException;
err.code = "EIO";
throw err;
},
});
const stream = { write: vi.fn(() => true) } as unknown as NodeJS.WriteStream;
expect(writer.write(stream, "hi")).toBe(false);
expect(writer.isClosed()).toBe(true);
expect(onBrokenPipe).toHaveBeenCalledTimes(1);
});
});