1// Copyright 2013 the V8 project authors. All rights reserved.
2// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
3//
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5// modification, are permitted provided that the following conditions
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9// 2.  Redistributions in binary form must reproduce the above copyright
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12//
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23
24description("test that comparison operators work correctly.")
25
26function makeTest(start, end, expression, relationship, override, invert) {
27    var resultValue = eval(relationship + expression + 0) || !!override;
28    if (invert)
29        resultValue = !resultValue;
30    var expr = start + expression + end;
31    var result = [];
32    function func(content) { var f = new Function(content); f.toString = function(){ return content}; return f; }
33    result.push([new func("return " + expr + ";"), resultValue]);
34    result.push([new func("if (" + expr + ") return true; return false;"), resultValue]);
35    result.push([new func("var k = 0; while (" + expr + ") if (k++) return true; return false;"), resultValue]);
36    result.push([new func("var k = 0; for (; " + expr + "; ) if (k++) return true; return false;"), resultValue]);
37    return result;
38}
39function doTest(lhs, rhs, relationship) {
40    var expressionParts = [["(",")"],["(", ") || 1", true],["(", ") && 1"],["(", ") || 1", true],["1 || (",")", true],["1 && (",")"]];
41    var expressions = [];
42    var tests = [];
43    for (var i = 0; i < expressionParts.length; i++) {
44        var start = expressionParts[i][0] + lhs;
45        var end = String(rhs) + expressionParts[i][1];
46        tests.push.apply(tests, makeTest(start, end, "==", relationship, expressionParts[i][2]));
47        tests.push.apply(tests, makeTest(start, end, "!=", relationship, expressionParts[i][2]));
48        tests.push.apply(tests, makeTest(start, end, "===", relationship, expressionParts[i][2]));
49        tests.push.apply(tests, makeTest(start, end, "!==", relationship, expressionParts[i][2]));
50    }
51    for (var i = 0; i < tests.length; i++) {
52        if ((r=tests[i][0]()) == tests[i][1])
53            testPassed(tests[i][0] + " is " + tests[i][1]);
54        else
55            testFailed(tests[i][0] + " is " + r + " and should be " + tests[i][1] + ".");
56    }
57}
58
59var letterA = "a";
60var letterB = "b";
61var One = 1;
62var Zero = 0;
63doTest('"a"', '"b"', -1);
64doTest('"a"', '"a"', 0);
65doTest('"b"', '"a"', 1);
66doTest('letterA', '"b"', -1);
67doTest('letterA', '"a"', 0);
68doTest('"b"', '"a"', 1);
69doTest('letterA', '"b"', -1);
70doTest('letterA', 'letterA', 0);
71doTest('"b"', 'letterA', 1);
72doTest('"a"', '"b"', -1);
73doTest('"a"', 'letterA', 0);
74doTest('"b"', 'letterA', 1);
75
76doTest('"a"', '0', NaN);
77doTest('0', '"a"', NaN);
78doTest('letterA', '0', NaN);
79doTest('letterA', '"a"', 0);
80doTest('0', '"a"', NaN);
81doTest('letterA', 'letterA', 0);
82doTest('0', 'letterA', NaN);
83doTest('"a"', 'letterA', 0);
84doTest('0', 'letterA', NaN);
85
86
87doTest('0', '1', -1);
88doTest('0', '0', 0);
89doTest('1', '0', 1);
90doTest('Zero', '1', -1);
91doTest('Zero', '0', 0);
92doTest('1', 'Zero', 1);
93doTest('0', 'One', -1);
94doTest('One', '0', 1);
95