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      1 // Copyright 2013 the V8 project authors. All rights reserved.
      2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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      5 // modification, are permitted provided that the following conditions
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      8 //     notice, this list of conditions and the following disclaimer.
      9 // 2.  Redistributions in binary form must reproduce the above copyright
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     22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     23 
     24 description(
     25 
     26 "This test checks for potential edge case bugs with certain math transforms involving multiplication by 1 and unary plus."
     27 
     28 );
     29 
     30 var values = {
     31     someInt: 42,
     32     someFloat: 42.42,
     33     one: 1,
     34     minusOne: -1,
     35     zero: 0,
     36     minusZero: -0,
     37     infinity: Infinity,
     38     minusInfinity: -Infinity,
     39     notANumber: NaN,
     40     nonNumberString: "x",
     41     someFloatString: "42.42"
     42 };
     43 
     44 var numberForString = {
     45     nonNumberString: "notANumber",
     46     someFloatString: "someFloat"
     47 };
     48 
     49 for (var name in values) {
     50     var numForStr = numberForString[name] ? numberForString[name] : name;
     51 
     52     shouldBe("values." + name + " * 1", "+values." + name);
     53     shouldBe("values." + name + " * 1", stringify(values[numForStr]));
     54 
     55     shouldBe("1 * values." + name, "+values." + name);
     56     shouldBe("1 * values." + name, stringify(values[numForStr]));
     57 }
     58 
     59 for (var name1 in values) {
     60     var numForStr1 = numberForString[name1] ? numberForString[name1] : name1;
     61     for (var name2 in values) {
     62         var numForStr2 = numberForString[name2] ? numberForString[name2] : name2;
     63 
     64         shouldBe("+values." + name1 + " * values." + name2, "values." + name1 + " * values." + name2);
     65         shouldBe("+values." + name1 + " * values." + name2, stringify(values[name1] * values[name2]));
     66         shouldBe("values." + name1 + " * +values." + name2, "values." + name1 + " * values." + name2);
     67         shouldBe("values." + name1 + " * +values." + name2, stringify(values[name1] * values[name2]));
     68         shouldBe("+values." + name1 + " * +values." + name2, "values." + name1 + " * values." + name2);
     69         shouldBe("+values." + name1 + " * +values." + name2, stringify(values[name1] * values[name2]));
     70 
     71         shouldBe("+values." + name1 + " / values." + name2, "values." + name1 + " / values." + name2);
     72         shouldBe("+values." + name1 + " / values." + name2, stringify(values[name1] / values[name2]));
     73         shouldBe("values." + name1 + " / +values." + name2, "values." + name1 + " / values." + name2);
     74         shouldBe("values." + name1 + " / +values." + name2, stringify(values[name1] / values[name2]));
     75         shouldBe("+values." + name1 + " / +values." + name2, "values." + name1 + " / values." + name2);
     76         shouldBe("+values." + name1 + " / +values." + name2, stringify(values[name1] / values[name2]));
     77 
     78         shouldBe("+values." + name1 + " - values." + name2, "values." + name1 + " - values." + name2);
     79         shouldBe("+values." + name1 + " - values." + name2, stringify(values[name1] - values[name2]));
     80         shouldBe("values." + name1 + " - +values." + name2, "values." + name1 + " - values." + name2);
     81         shouldBe("values." + name1 + " - +values." + name2, stringify(values[name1] - values[name2]));
     82         shouldBe("+values." + name1 + " - +values." + name2, "values." + name1 + " - values." + name2);
     83         shouldBe("+values." + name1 + " - +values." + name2, stringify(values[name1] - values[name2]));
     84     }
     85 }
     86