示例

Demonstrate that FileSink.write() silently drops data without throwing when called after end()

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CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17

目标: Demonstrate that FileSink.write() silently drops data without throwing when called after end() HOW
包: bun 1.3.14
环境: node
创建时间: 2026-08-17T03:51:34Z

Calling write() on a closed FileSink throws an error or rejects, just like writing to a closed stream in Node.js or web streams.

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

const file = Bun.file('data.bin');
const writer = file.writer();
writer.end();
const res = writer.write('A');
assert.strictEqual(res, true, 'write() on a closed FileSink returns true rather than throwing an error');
assert.strictEqual(await file.text(), '', 'Data written after end() is silently discarded');

node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9