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058e7fb8e6
This makes sure the proper error is returned. Right now the error is not specific enough. PR-URL: https://github.com/nodejs/node/pull/19445 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
119 lines
2.9 KiB
JavaScript
119 lines
2.9 KiB
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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const result = process.cpuUsage();
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// Validate the result of calling with no previous value argument.
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validateResult(result);
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// Validate the result of calling with a previous value argument.
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validateResult(process.cpuUsage(result));
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// Ensure the results are >= the previous.
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let thisUsage;
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let lastUsage = process.cpuUsage();
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for (let i = 0; i < 10; i++) {
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thisUsage = process.cpuUsage();
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validateResult(thisUsage);
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assert(thisUsage.user >= lastUsage.user);
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assert(thisUsage.system >= lastUsage.system);
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lastUsage = thisUsage;
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}
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// Ensure that the diffs are >= 0.
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let startUsage;
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let diffUsage;
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for (let i = 0; i < 10; i++) {
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startUsage = process.cpuUsage();
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diffUsage = process.cpuUsage(startUsage);
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validateResult(startUsage);
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validateResult(diffUsage);
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assert(diffUsage.user >= 0);
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assert(diffUsage.system >= 0);
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}
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// Ensure that an invalid shape for the previous value argument throws an error.
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assert.throws(
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() => process.cpuUsage(1),
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{
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code: 'ERR_INVALID_ARG_TYPE',
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name: 'TypeError [ERR_INVALID_ARG_TYPE]',
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message: 'The "prevValue" argument must be of type object. ' +
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'Received type number'
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}
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);
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// Check invalid types.
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[
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{},
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{ user: 'a' },
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{ user: null, system: 'c' },
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].forEach((value) => {
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assert.throws(
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() => process.cpuUsage(value),
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{
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code: 'ERR_INVALID_ARG_TYPE',
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name: 'TypeError [ERR_INVALID_ARG_TYPE]',
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message: 'The "prevValue.user" property must be of type number. ' +
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`Received type ${typeof value.user}`
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}
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);
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});
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[
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{ user: 3, system: 'b' },
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{ user: 3, system: null }
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].forEach((value) => {
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assert.throws(
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() => process.cpuUsage(value),
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{
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code: 'ERR_INVALID_ARG_TYPE',
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name: 'TypeError [ERR_INVALID_ARG_TYPE]',
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message: 'The "prevValue.system" property must be of type number. ' +
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`Received type ${typeof value.system}`
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}
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);
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});
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// Check invalid values.
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[
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{ user: -1, system: 2 },
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{ user: Number.POSITIVE_INFINITY, system: 4 }
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].forEach((value) => {
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assert.throws(
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() => process.cpuUsage(value),
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{
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code: 'ERR_INVALID_OPT_VALUE',
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name: 'RangeError [ERR_INVALID_OPT_VALUE]',
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message: `The value "${value.user}" is invalid ` +
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'for option "prevValue.user"'
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}
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);
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});
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[
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{ user: 3, system: -2 },
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{ user: 5, system: Number.NEGATIVE_INFINITY }
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].forEach((value) => {
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assert.throws(
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() => process.cpuUsage(value),
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{
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code: 'ERR_INVALID_OPT_VALUE',
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name: 'RangeError [ERR_INVALID_OPT_VALUE]',
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message: `The value "${value.system}" is invalid ` +
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'for option "prevValue.system"'
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}
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);
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});
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// Ensure that the return value is the expected shape.
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function validateResult(result) {
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assert.notStrictEqual(result, null);
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assert(Number.isFinite(result.user));
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assert(Number.isFinite(result.system));
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assert(result.user >= 0);
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assert(result.system >= 0);
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}
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