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// 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("test that comparison operators work correctly.")
function makeTest(start, end, expression, relationship, override, invert) {
var resultValue = eval(relationship + expression + 0) || !!override;
if (invert)
resultValue = !resultValue;
var expr = start + expression + end;
var result = [];
function func(content) { var f = new Function(content); f.toString = function(){ return content}; return f; }
result.push([new func("return " + expr + ";"), resultValue]);
result.push([new func("if (" + expr + ") return true; return false;"), resultValue]);
result.push([new func("var k = 0; while (" + expr + ") if (k++) return true; return false;"), resultValue]);
result.push([new func("var k = 0; for (; " + expr + "; ) if (k++) return true; return false;"), resultValue]);
return result;
}
function doTest(lhs, rhs, relationship) {
var expressionParts = [["(",")"],["(", ") || 1", true],["(", ") && 1"],["(", ") || 1", true],["1 || (",")", true],["1 && (",")"]];
var expressions = [];
var tests = [];
for (var i = 0; i < expressionParts.length; i++) {
var start = expressionParts[i][0] + lhs;
var end = String(rhs) + expressionParts[i][1];
tests.push.apply(tests, makeTest(start, end, "==", relationship, expressionParts[i][2]));
tests.push.apply(tests, makeTest(start, end, "!=", relationship, expressionParts[i][2]));
tests.push.apply(tests, makeTest(start, end, "===", relationship, expressionParts[i][2]));
tests.push.apply(tests, makeTest(start, end, "!==", relationship, expressionParts[i][2]));
}
for (var i = 0; i < tests.length; i++) {
if ((r=tests[i][0]()) == tests[i][1])
testPassed(tests[i][0] + " is " + tests[i][1]);
else
testFailed(tests[i][0] + " is " + r + " and should be " + tests[i][1] + ".");
}
}
var letterA = "a";
var letterB = "b";
var One = 1;
var Zero = 0;
doTest('"a"', '"b"', -1);
doTest('"a"', '"a"', 0);
doTest('"b"', '"a"', 1);
doTest('letterA', '"b"', -1);
doTest('letterA', '"a"', 0);
doTest('"b"', '"a"', 1);
doTest('letterA', '"b"', -1);
doTest('letterA', 'letterA', 0);
doTest('"b"', 'letterA', 1);
doTest('"a"', '"b"', -1);
doTest('"a"', 'letterA', 0);
doTest('"b"', 'letterA', 1);
doTest('"a"', '0', NaN);
doTest('0', '"a"', NaN);
doTest('letterA', '0', NaN);
doTest('letterA', '"a"', 0);
doTest('0', '"a"', NaN);
doTest('letterA', 'letterA', 0);
doTest('0', 'letterA', NaN);
doTest('"a"', 'letterA', 0);
doTest('0', 'letterA', NaN);
doTest('0', '1', -1);
doTest('0', '0', 0);
doTest('1', '0', 1);
doTest('Zero', '1', -1);
doTest('Zero', '0', 0);
doTest('1', 'Zero', 1);
doTest('0', 'One', -1);
doTest('One', '0', 1);
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