src/third_party/mozjs-45/js/src/jit-test/tests/basic/testEqFalseEmptyString.js

function testEqFalseEmptyString() {
    var x = [];
    for (var i=0;i<5;++i) x.push(false == "");
    return x.join(",");
}
assertEq(testEqFalseEmptyString(), "true,true,true,true,true");