1// Copyright 2008 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28// Test the exponential notation output. 29assertEquals("1e+27", (1.2345e+27).toPrecision(1)); 30assertEquals("1.2e+27", (1.2345e+27).toPrecision(2)); 31assertEquals("1.23e+27", (1.2345e+27).toPrecision(3)); 32assertEquals("1.234e+27", (1.2345e+27).toPrecision(4)); 33assertEquals("1.2345e+27", (1.2345e+27).toPrecision(5)); 34assertEquals("1.23450e+27", (1.2345e+27).toPrecision(6)); 35assertEquals("1.234500e+27", (1.2345e+27).toPrecision(7)); 36 37assertEquals("-1e+27", (-1.2345e+27).toPrecision(1)); 38assertEquals("-1.2e+27", (-1.2345e+27).toPrecision(2)); 39assertEquals("-1.23e+27", (-1.2345e+27).toPrecision(3)); 40assertEquals("-1.234e+27", (-1.2345e+27).toPrecision(4)); 41assertEquals("-1.2345e+27", (-1.2345e+27).toPrecision(5)); 42assertEquals("-1.23450e+27", (-1.2345e+27).toPrecision(6)); 43assertEquals("-1.234500e+27", (-1.2345e+27).toPrecision(7)); 44 45 46// Test the fixed notation output. 47assertEquals("7", (7).toPrecision(1)); 48assertEquals("7.0", (7).toPrecision(2)); 49assertEquals("7.00", (7).toPrecision(3)); 50 51assertEquals("-7", (-7).toPrecision(1)); 52assertEquals("-7.0", (-7).toPrecision(2)); 53assertEquals("-7.00", (-7).toPrecision(3)); 54 55assertEquals("9e+1", (91).toPrecision(1)); 56assertEquals("91", (91).toPrecision(2)); 57assertEquals("91.0", (91).toPrecision(3)); 58assertEquals("91.00", (91).toPrecision(4)); 59 60assertEquals("-9e+1", (-91).toPrecision(1)); 61assertEquals("-91", (-91).toPrecision(2)); 62assertEquals("-91.0", (-91).toPrecision(3)); 63assertEquals("-91.00", (-91).toPrecision(4)); 64 65assertEquals("9e+1", (91.1234).toPrecision(1)); 66assertEquals("91", (91.1234).toPrecision(2)); 67assertEquals("91.1", (91.1234).toPrecision(3)); 68assertEquals("91.12", (91.1234).toPrecision(4)); 69assertEquals("91.123", (91.1234).toPrecision(5)); 70assertEquals("91.1234", (91.1234).toPrecision(6)); 71assertEquals("91.12340", (91.1234).toPrecision(7)); 72assertEquals("91.123400", (91.1234).toPrecision(8)); 73 74assertEquals("-9e+1", (-91.1234).toPrecision(1)); 75assertEquals("-91", (-91.1234).toPrecision(2)); 76assertEquals("-91.1", (-91.1234).toPrecision(3)); 77assertEquals("-91.12", (-91.1234).toPrecision(4)); 78assertEquals("-91.123", (-91.1234).toPrecision(5)); 79assertEquals("-91.1234", (-91.1234).toPrecision(6)); 80assertEquals("-91.12340", (-91.1234).toPrecision(7)); 81assertEquals("-91.123400", (-91.1234).toPrecision(8)); 82 83