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b6da55f0fd
This makes all the parameters of the `fs.read` function, except for `fd` and the callback(when not using as a promise) optional. They will default to sensible defaults. Fixes: https://github.com/nodejs/node/issues/31237 PR-URL: https://github.com/nodejs/node/pull/31402 Reviewed-By: Robert Nagy <ronagy@icloud.com>
37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
JavaScript
'use strict';
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const common = require('../common');
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const fixtures = require('../common/fixtures');
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const fs = require('fs');
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const assert = require('assert');
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const filepath = fixtures.path('x.txt');
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const fd = fs.openSync(filepath, 'r');
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const expected = Buffer.from('xyz\n');
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const defaultBufferAsync = Buffer.alloc(16384);
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const bufferAsOption = Buffer.allocUnsafe(expected.length);
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// Test passing in an empty options object
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fs.read(fd, { position: 0 }, common.mustCall((err, bytesRead, buffer) => {
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assert.strictEqual(bytesRead, expected.length);
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assert.deepStrictEqual(defaultBufferAsync.length, buffer.length);
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}));
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// Test not passing in any options object
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fs.read(fd, common.mustCall((err, bytesRead, buffer) => {
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assert.strictEqual(bytesRead, expected.length);
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assert.deepStrictEqual(defaultBufferAsync.length, buffer.length);
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}));
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// Test passing in options
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fs.read(fd, {
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buffer: bufferAsOption,
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offset: 0,
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lenght: bufferAsOption.length,
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position: 0
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},
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common.mustCall((err, bytesRead, buffer) => {
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assert.strictEqual(bytesRead, expected.length);
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assert.deepStrictEqual(bufferAsOption.length, buffer.length);
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}));
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