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rkatic avatar rkatic commented on June 12, 2024

I will start with runCase("recursion", [R] );.
Essentially it tests:

function run() {
    asap(run);
}
run();

To test that all tasks are executed in correct order, we do something like:

var expectedOrder = [];
var calledOrder = [];

var _asap = asap;

var asap = function (task) {
    var index = expectedOrder.length;
    if (index >= 4000) {
        return;
    }

    expectedOrder.push(index);

    _asap(function () {
        calledOrder.push(index);
        task();

        // done?
        if (calledOrder.length >= expectedOrder.length) {
            expect(calledOrder).to.eql(expectedOrder);
        }
    });
};

As you can see we stop when no further tasks are queued, or when a maximum of 4000 tasks where queued.
expectedOrder is always an ordered array of integers ([0, 1, 2, 3, ...]) with length <= 4000.

Let's see other cases.

runCase("errors at end", [[e], e], e ); is essentially:

function run() {
    asap(function () {

        asap(function () {
            throw new Error();
        });

        throw new Error();
    })

    throw new Error();
}
run();

runCase("recursion with errors", [R, e] ); is essentially:

function run() {
    asap(function () {
        run();
        throw new Error();
    });
}
run();

runCase("multiple recursions", [R], [R], [R, e] ); is essentially:

function run() {
    asap(function () {
        run();
    });

    asap(function () {
        run();
    });

    asap(function () {
        run();
        throw new Error();
    });
}
run();

runCase("recursion - mixed", [R, [], e] ); is essentially:

function run() {
    asap(function () {
        run();

        asap(function () {

        });

        throw new Error();
    });
}
run();

runCase("recursion - mixed 2", [R, [[[[], e]]], e] ); is essentially:

function run() {
    asap(function () {
        run();

        asap(function () {
            asap(function () {
                asap(function () {
                    asap(function () {

                    });

                    throw new Error();
                });         
            });         
        });

        throw new Error();
    });
}
run();

from asap.

rkatic avatar rkatic commented on June 12, 2024

Now with 78c4e1a, you can use both approaches.

For instance, instead of

runCase("recursion with errors", [R, e] );

you can

runCase("recursion with errors", function run() {
    asap(function () {
        run();
        throw new Error();
    });
});

from asap.

domenic avatar domenic commented on June 12, 2024

Awesome, thanks for explaining!

from asap.

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