Migrated several tests from blink to V8 repository.

test/webkit/parseInt.js

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