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78 lines
3.7 KiB
78 lines
3.7 KiB
11 years ago
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// Copyright 2013 the V8 project authors. All rights reserved.
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// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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description('Tests for the parseInt function.');
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// Simple hex & dec integer values.
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shouldBe("parseInt('123')", '123');
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shouldBe("parseInt('123x4')", '123');
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shouldBe("parseInt('-123')", '-123');
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shouldBe("parseInt('0x123')", '0x123');
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shouldBe("parseInt('0x123x4')", '0x123');
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shouldBe("parseInt('-0x123x4')", '-0x123');
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shouldBe("parseInt('-')", 'Number.NaN');
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shouldBe("parseInt('0x')", 'Number.NaN');
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shouldBe("parseInt('-0x')", 'Number.NaN');
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// These call default to base 10, unless radix is explicitly 16.
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shouldBe("parseInt('123', undefined)", '123');
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shouldBe("parseInt('123', null)", '123');
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shouldBe("parseInt('123', 0)", '123');
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shouldBe("parseInt('123', 10)", '123');
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shouldBe("parseInt('123', 16)", '0x123');
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// These call default to base 16, unless radix is explicitly 10.
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shouldBe("parseInt('0x123', undefined)", '0x123');
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shouldBe("parseInt('0x123', null)", '0x123');
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shouldBe("parseInt('0x123', 0)", '0x123');
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shouldBe("parseInt('0x123', 10)", '0');
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shouldBe("parseInt('0x123', 16)", '0x123');
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// Test edge cases for the Number.toString exponential ranges.
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shouldBe("parseInt(Math.pow(10, 20))", '100000000000000000000');
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shouldBe("parseInt(Math.pow(10, 21))", '1');
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shouldBe("parseInt(Math.pow(10, -6))", '0');
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shouldBe("parseInt(Math.pow(10, -7))", '1');
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shouldBe("parseInt(-Math.pow(10, 20))", '-100000000000000000000');
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shouldBe("parseInt(-Math.pow(10, 21))", '-1');
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shouldBe("parseInt(-Math.pow(10, -6))", '-0');
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shouldBe("parseInt(-Math.pow(10, -7))", '-1');
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// Test correct handling for -0.
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shouldBe("parseInt('0')", '0');
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shouldBe("parseInt('-0')", '-0');
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shouldBe("parseInt(0)", '0');
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shouldBe("parseInt(-0)", '0');
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// Test edge cases of our optimized int handling.
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shouldBe("parseInt(2147483647)", '2147483647');
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shouldBe("parseInt(2147483648)", '2147483648');
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shouldBe("parseInt('2147483647')", '2147483647');
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shouldBe("parseInt('2147483648')", '2147483648');
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// Add test cases where the ToString/ToInt32 conversions throw.
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var state;
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var throwingRadix = { valueOf: function(){ state = "throwingRadix"; throw null; } };
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var throwingString = { toString: function(){ state = "throwingString"; throw null; } };
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shouldBe("state = null; try { parseInt('123', throwingRadix); } catch (e) {} state;", '"throwingRadix"');
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shouldBe("state = null; try { parseInt(throwingString, throwingRadix); } catch (e) {} state;", '"throwingString"');
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