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def57580fc
Refs: https://coverage.nodejs.org/coverage-910efc2d9a69ac32/lib/internal/fs/utils.js.html#L634 PR-URL: https://github.com/nodejs/node/pull/38746 Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Khaidi Chu <i@2333.moe> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
88 lines
2.2 KiB
JavaScript
88 lines
2.2 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 {
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validateOffsetLengthRead,
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validateOffsetLengthWrite,
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} = require('internal/fs/utils');
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{
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const offset = -1;
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assert.throws(
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() => validateOffsetLengthRead(offset, 0, 0),
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common.expectsError({
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "offset" is out of range. ' +
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`It must be >= 0. Received ${offset}`
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})
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);
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}
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{
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const length = -1;
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assert.throws(
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() => validateOffsetLengthRead(0, length, 0),
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common.expectsError({
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "length" is out of range. ' +
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`It must be >= 0. Received ${length}`
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})
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);
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}
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{
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const offset = 1;
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const length = 1;
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const byteLength = offset + length - 1;
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assert.throws(
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() => validateOffsetLengthRead(offset, length, byteLength),
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common.expectsError({
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "length" is out of range. ' +
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`It must be <= ${byteLength - offset}. Received ${length}`
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})
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);
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}
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// Most platforms don't allow reads or writes >= 2 GB.
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// See https://github.com/libuv/libuv/pull/1501.
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const kIoMaxLength = 2 ** 31 - 1;
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// RangeError when offset > byteLength
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{
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const offset = 100;
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const length = 100;
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const byteLength = 50;
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assert.throws(
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() => validateOffsetLengthWrite(offset, length, byteLength),
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common.expectsError({
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "offset" is out of range. ' +
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`It must be <= ${byteLength}. Received ${offset}`
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})
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);
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}
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// RangeError when byteLength < kIoMaxLength, and length > byteLength - offset.
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{
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const offset = kIoMaxLength - 150;
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const length = 200;
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const byteLength = kIoMaxLength - 100;
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assert.throws(
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() => validateOffsetLengthWrite(offset, length, byteLength),
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common.expectsError({
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code: 'ERR_OUT_OF_RANGE',
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name: 'RangeError',
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message: 'The value of "length" is out of range. ' +
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`It must be <= ${byteLength - offset}. Received ${length}`
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})
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);
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}
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