File: test-process-hrtime.js

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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

var common = require('../common');
var assert = require('assert');

// the default behavior, return an Array "tuple" of numbers
var tuple = process.hrtime();

// validate the default behavior
validateTuple(tuple);

// validate that passing an existing tuple returns another valid tuple
validateTuple(process.hrtime(tuple));

// test that only an Array may be passed to process.hrtime()
assert.throws(function() {
  process.hrtime(1);
});

function validateTuple(tuple) {
  assert(Array.isArray(tuple));
  assert.equal(2, tuple.length);
  tuple.forEach(function (v) {
    assert.equal('number', typeof v);
    assert(isFinite(v));
  });
}