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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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require('../common');
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const assert = require('assert');
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// the default behavior, return an Array "tuple" of numbers
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const tuple = process.hrtime();
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// validate the default behavior
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validateTuple(tuple);
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// validate that passing an existing tuple returns another valid tuple
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validateTuple(process.hrtime(tuple));
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// test that only an Array may be passed to process.hrtime()
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assert.throws(() => {
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process.hrtime(1);
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}, /^TypeError: process\.hrtime\(\) only accepts an Array tuple$/);
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assert.throws(() => {
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process.hrtime([]);
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}, /^TypeError: process\.hrtime\(\) only accepts an Array tuple$/);
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assert.throws(() => {
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process.hrtime([1]);
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}, /^TypeError: process\.hrtime\(\) only accepts an Array tuple$/);
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assert.throws(() => {
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process.hrtime([1, 2, 3]);
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}, /^TypeError: process\.hrtime\(\) only accepts an Array tuple$/);
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function validateTuple(tuple) {
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assert(Array.isArray(tuple));
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assert.strictEqual(tuple.length, 2);
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assert(Number.isInteger(tuple[0]));
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assert(Number.isInteger(tuple[1]));
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}
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const diff = process.hrtime([0, 1e9 - 1]);
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assert(diff[1] >= 0); // https://github.com/nodejs/node/issues/4751
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