testBug504520Harder.js

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function testBug504520Harder() {

    // test 1024 similar cases

    var vals = [1/0, -1/0, 0, 0/0];

    var ops = ["===", "!==", "==", "!=", "<", ">", "<=", ">="];

    for (var x of vals) {

        for (var y of vals) {

            for (var op of ops) {

                for (var z of vals) {

                    // Assume eval is correct. This depends on the global

                    // Infinity property not having been reassigned.

                    var xz = eval(x + op + z);

                    var yz = eval(y + op + z);

                    var arr = [x, x, x, x, x, x, x, x, x, y];

                    assertEq(arr.length > 9, true);

                    var expected = [xz, xz, xz, xz, xz, xz, xz, xz, xz, yz];

                    // ?: looks superfluous but that's what we're testing here

                    var fun = eval(

                        '(function (arr, results) {\n' +

                        '    for (let i = 0; i < arr.length; i++)\n' +

                        '        results.push(arr[i]' + op + z + ' ? "true" : "false");\n' +

                        '});\n');

                    var actual = [];

                    fun(arr, actual);

		    print(x, y, op, z);

                    assertEq("" + actual, "" + expected);

testBug504520Harder();