src/v8/test/webkit/boolean-argument-prediction.js

// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
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// modification, are permitted provided that the following conditions
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// 2.  Redistributions in binary form must reproduce the above copyright
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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description(
"This tests that arguments predicted to be boolean are checked."
);

function predictBooleanArgument(b) {
    if (b) {
        return "yes";
    } else {
        return "no";
    }
}

shouldBe("predictBooleanArgument(true)", "\"yes\"");
shouldBe("predictBooleanArgument(false)", "\"no\"");

for (var i = 0; i < 1000; ++i) {
    predictBooleanArgument(true);
    predictBooleanArgument(false);
}

shouldBe("predictBooleanArgument(true)", "\"yes\"");
shouldBe("predictBooleanArgument(false)", "\"no\"");

shouldBe("predictBooleanArgument(0)", "\"no\"");
shouldBe("predictBooleanArgument(1)", "\"yes\"");
shouldBe("predictBooleanArgument(2)", "\"yes\"");
shouldBe("predictBooleanArgument(3)", "\"yes\"");
shouldBe("predictBooleanArgument(4)", "\"yes\"");

for (var i = 0; i < 1000; ++i) {
    predictBooleanArgument(0);
    predictBooleanArgument(1);
    predictBooleanArgument(2);
    predictBooleanArgument(3);
    predictBooleanArgument(4);
}

shouldBe("predictBooleanArgument(true)", "\"yes\"");
shouldBe("predictBooleanArgument(false)", "\"no\"");

shouldBe("predictBooleanArgument(0)", "\"no\"");
shouldBe("predictBooleanArgument(1)", "\"yes\"");
shouldBe("predictBooleanArgument(2)", "\"yes\"");
shouldBe("predictBooleanArgument(3)", "\"yes\"");
shouldBe("predictBooleanArgument(4)", "\"yes\"");