<html>
<import src="../resources/chai.sky" />
<import src="../resources/mocha.sky" />
<script>
describe('Transient registrations', function() {
    it('should be cleared even without delivery', function(done) {
        var mutationsDelivered = false;
        var observer = new MutationObserver(function(mutations) {
            mutationsDelivered = true;
        });
        var div = document.createElement('div');
        var span = div.appendChild(document.createElement('span'));
        observer.observe(div, {attributes: true, subtree: true});
        div.removeChild(span);
        setTimeout(function() {
            // By the time this function runs the transient registration should
            // be cleared, so we expect not to be notified of this attribute
            // mutation.
            span.setAttribute('bar', 'baz');
            setTimeout(function() {
                assert.notOk(mutationsDelivered);
                done();
            }, 0);
        }, 0);
    });
});
</script>
</html>