third_party/WebKit/LayoutTests/fast/events/pointerevents/pointer-handler-count.html

<script src='../../../resources/testharness.js'></script>
<script src='../../../resources/testharnessreport.js'></script><script>

(function() {
    var listener = function() { }

    test(function() {

        assert_equals(internals.pointerEventHandlerCount(document), 0);
        document.addEventListener('pointerenter', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 1);
        document.addEventListener('pointerout', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 2);
        document.addEventListener('pointerenter', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 3);
        document.addEventListener('pointerout', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 4);
        document.removeEventListener('pointerenter', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 3);
        document.removeEventListener('pointerout', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 2);

        // Try removing the capturing listener again.
        document.removeEventListener('pointerenter', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 2);
        document.removeEventListener('pointerout', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 2);

        document.removeEventListener('pointerenter', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 1);
        document.removeEventListener('pointerout', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 0);

    }, "Test 1: addEventListener/removeEventListener on the document");

})();

(function() {
    test(function() {
        assert_equals(internals.pointerEventHandlerCount(document), 0);
        document.onpointerenter = function() { }
        assert_equals(internals.pointerEventHandlerCount(document), 1);
        document.onpointerenter = function() { }
        assert_equals(internals.pointerEventHandlerCount(document), 1);
        document.onpointerenter = null;
        assert_equals(internals.pointerEventHandlerCount(document), 0);
    }, "Test 2: setting onpointerenter on the document");
})();

(function() {
    var listener = function() { }

    test(function() {
        assert_equals(internals.pointerEventHandlerCount(document), 0);
        window.addEventListener('pointerenter', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 1);
        window.addEventListener('pointerout', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 2);
        window.addEventListener('pointerenter', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 3);
        window.addEventListener('pointerout', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 4);
        window.removeEventListener('pointerenter', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 3);
        window.removeEventListener('pointerout', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 2);

        // Try removing the capturing listener again.
        window.removeEventListener('pointerenter', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 2);
        window.removeEventListener('pointerout', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 2);

        window.removeEventListener('pointerenter', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 1);
        window.removeEventListener('pointerout', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 0);
    }, "Test 3: addEventListener/removeEventListener on the window");
})();

(function() {
    test(function() {
        assert_equals(internals.pointerEventHandlerCount(document), 0);
        window.onpointerenter = function() { }
        assert_equals(internals.pointerEventHandlerCount(document), 1);
        window.onpointerenter = function() { }
        assert_equals(internals.pointerEventHandlerCount(document), 1);
        window.onpointerenter = null;
        assert_equals(internals.pointerEventHandlerCount(document), 0);
    }, "Test 4: setting onpointerenter on the window");
})();

(function() {
    var listener = function() { }
    test(function() {
        assert_equals(internals.pointerEventHandlerCount(document), 0);
        document.addEventListener('pointerenter', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 1);
        document.addEventListener('pointerover', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 2);
        document.addEventListener('pointerleave', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 3);
        document.addEventListener('pointerout', listener, false);
        assert_equals(internals.pointerEventHandlerCount(document), 4);
        document.addEventListener('pointermove', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 5);
        document.addEventListener('pointerup', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 6);
        document.addEventListener('pointerdown', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 7);
        document.addEventListener('pointercancel', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 8);
        document.addEventListener('gotpointercapture', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 9);
        document.addEventListener('lostpointercapture', listener, true);
        assert_equals(internals.pointerEventHandlerCount(document), 10);
    }, "Test 5: test addEventListener for all possible pointer event");
})();
</script>
</body>