1b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Copyright 2014 the V8 project authors. All rights reserved. 2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// found in the LICENSE file. 4b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertTrue(isNaN(Math.cbrt(NaN))); 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertTrue(isNaN(Math.cbrt(function() {}))); 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertTrue(isNaN(Math.cbrt({ toString: function() { return NaN; } }))); 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertTrue(isNaN(Math.cbrt({ valueOf: function() { return "abc"; } }))); 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertEquals("Infinity", String(1/Math.cbrt(0))); 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertEquals("-Infinity", String(1/Math.cbrt(-0))); 11b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertEquals("Infinity", String(Math.cbrt(Infinity))); 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochassertEquals("-Infinity", String(Math.cbrt(-Infinity))); 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfor (var i = 1E-100; i < 1E100; i *= Math.PI) { 15b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch assertEqualsDelta(i, Math.cbrt(i*i*i), i * 1E-15); 16b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 17b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfor (var i = -1E-100; i > -1E100; i *= Math.E) { 19b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch assertEqualsDelta(i, Math.cbrt(i*i*i), -i * 1E-15); 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 22b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Let's be exact at least for small integers. 23b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochfor (var i = 2; i < 10000; i++) { 24b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch assertEquals(i, Math.cbrt(i*i*i)); 25b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 26