1 // Copyright 2013 the V8 project authors. All rights reserved. 2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions 6 // are met: 7 // 1. Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // 2. Redistributions in binary form must reproduce the above copyright 10 // notice, this list of conditions and the following disclaimer in the 11 // documentation and/or other materials provided with the distribution. 12 // 13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 24 description('Tests for the parseInt function.'); 25 26 // Simple hex & dec integer values. 27 shouldBe("parseInt('123')", '123'); 28 shouldBe("parseInt('123x4')", '123'); 29 shouldBe("parseInt('-123')", '-123'); 30 shouldBe("parseInt('0x123')", '0x123'); 31 shouldBe("parseInt('0x123x4')", '0x123'); 32 shouldBe("parseInt('-0x123x4')", '-0x123'); 33 shouldBe("parseInt('-')", 'Number.NaN'); 34 shouldBe("parseInt('0x')", 'Number.NaN'); 35 shouldBe("parseInt('-0x')", 'Number.NaN'); 36 37 // These call default to base 10, unless radix is explicitly 16. 38 shouldBe("parseInt('123', undefined)", '123'); 39 shouldBe("parseInt('123', null)", '123'); 40 shouldBe("parseInt('123', 0)", '123'); 41 shouldBe("parseInt('123', 10)", '123'); 42 shouldBe("parseInt('123', 16)", '0x123'); 43 // These call default to base 16, unless radix is explicitly 10. 44 shouldBe("parseInt('0x123', undefined)", '0x123'); 45 shouldBe("parseInt('0x123', null)", '0x123'); 46 shouldBe("parseInt('0x123', 0)", '0x123'); 47 shouldBe("parseInt('0x123', 10)", '0'); 48 shouldBe("parseInt('0x123', 16)", '0x123'); 49 50 // Test edge cases for the Number.toString exponential ranges. 51 shouldBe("parseInt(Math.pow(10, 20))", '100000000000000000000'); 52 shouldBe("parseInt(Math.pow(10, 21))", '1'); 53 shouldBe("parseInt(Math.pow(10, -6))", '0'); 54 shouldBe("parseInt(Math.pow(10, -7))", '1'); 55 shouldBe("parseInt(-Math.pow(10, 20))", '-100000000000000000000'); 56 shouldBe("parseInt(-Math.pow(10, 21))", '-1'); 57 shouldBe("parseInt(-Math.pow(10, -6))", '-0'); 58 shouldBe("parseInt(-Math.pow(10, -7))", '-1'); 59 60 // Test correct handling for -0. 61 shouldBe("parseInt('0')", '0'); 62 shouldBe("parseInt('-0')", '-0'); 63 shouldBe("parseInt(0)", '0'); 64 shouldBe("parseInt(-0)", '0'); 65 66 // Test edge cases of our optimized int handling. 67 shouldBe("parseInt(2147483647)", '2147483647'); 68 shouldBe("parseInt(2147483648)", '2147483648'); 69 shouldBe("parseInt('2147483647')", '2147483647'); 70 shouldBe("parseInt('2147483648')", '2147483648'); 71 72 // Add test cases where the ToString/ToInt32 conversions throw. 73 var state; 74 var throwingRadix = { valueOf: function(){ state = "throwingRadix"; throw null; } }; 75 var throwingString = { toString: function(){ state = "throwingString"; throw null; } }; 76 shouldBe("state = null; try { parseInt('123', throwingRadix); } catch (e) {} state;", '"throwingRadix"'); 77 shouldBe("state = null; try { parseInt(throwingString, throwingRadix); } catch (e) {} state;", '"throwingString"'); 78
