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c41cf6fd49
Sync functions in fs throwed an error with a stacktrace which is helpful for debugging. But functions in fs/promises throwed an error without a stacktrace. This commit adds stacktraces by calling Error.captureStacktrace and re-throwing the error. Refs: https://github.com/nodejs/node/issues/34817 PR-URL: https://github.com/nodejs/node/pull/49849 Fixes: https://github.com/nodejs/node/issues/50160 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Zeyu "Alex" Yang <himself65@outlook.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
91 lines
2.6 KiB
JavaScript
91 lines
2.6 KiB
JavaScript
// Flags: --expose-internals
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const { writeFile, readFile } = require('fs').promises;
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const tmpdir = require('../common/tmpdir');
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const { internalBinding } = require('internal/test/binding');
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const fsBinding = internalBinding('fs');
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tmpdir.refresh();
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const fn = tmpdir.resolve('large-file');
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// Creating large buffer with random content
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const largeBuffer = Buffer.from(
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Array.from({ length: 1024 ** 2 + 19 }, (_, index) => index)
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);
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async function createLargeFile() {
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// Writing buffer to a file then try to read it
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await writeFile(fn, largeBuffer);
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}
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async function validateReadFile() {
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const readBuffer = await readFile(fn);
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assert.strictEqual(readBuffer.equals(largeBuffer), true);
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}
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async function validateReadFileProc() {
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// Test to make sure reading a file under the /proc directory works. Adapted
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// from test-fs-read-file-sync-hostname.js.
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// Refs:
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// - https://groups.google.com/forum/#!topic/nodejs-dev/rxZ_RoH1Gn0
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// - https://github.com/nodejs/node/issues/21331
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// Test is Linux-specific.
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if (!common.isLinux)
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return;
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const hostname = await readFile('/proc/sys/kernel/hostname');
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assert.ok(hostname.length > 0);
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}
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function validateReadFileAbortLogicBefore() {
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const signal = AbortSignal.abort();
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assert.rejects(readFile(fn, { signal }), {
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name: 'AbortError'
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}).then(common.mustCall());
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}
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function validateReadFileAbortLogicDuring() {
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const controller = new AbortController();
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const signal = controller.signal;
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process.nextTick(() => controller.abort());
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assert.rejects(readFile(fn, { signal }), {
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name: 'AbortError'
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}).then(common.mustCall());
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}
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async function validateWrongSignalParam() {
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// Verify that if something different than Abortcontroller.signal
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// is passed, ERR_INVALID_ARG_TYPE is thrown
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await assert.rejects(async () => {
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const callback = common.mustNotCall();
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await readFile(fn, { signal: 'hello' }, callback);
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}, { code: 'ERR_INVALID_ARG_TYPE', name: 'TypeError' });
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}
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async function validateZeroByteLiar() {
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const originalFStat = fsBinding.fstat;
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fsBinding.fstat = common.mustCall(
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async () => (/* stat fields */ [0, 1, 2, 3, 4, 5, 6, 7, 0 /* size */])
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);
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const readBuffer = await readFile(fn);
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assert.strictEqual(readBuffer.toString(), largeBuffer.toString());
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fsBinding.fstat = originalFStat;
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}
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(async () => {
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await createLargeFile();
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await validateReadFile();
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await validateReadFileProc();
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await validateReadFileAbortLogicBefore();
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await validateReadFileAbortLogicDuring();
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await validateWrongSignalParam();
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await validateZeroByteLiar();
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})().then(common.mustCall());
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