| var objects = [{}, function() {}, new Number(42), new String()]; |
| var primitives = [42, null, undefined, ""]; |
| var firstEventHandler; |
| objects.forEach(function(object) { |
| test(t => { |
| var i = 0; |
| firstEventHandler = t.unreached_func('First event handler.'); |
| var uncalled = "firstEventHandler();"; |
| var button = document.createElement('button'); |
| button.onclick = object; // event handler listener is registered here |
| assert_equals(button.onclick, object); |
| button.addEventListener('click', t.step_func(() => { assert_equals(++i, 2) }), false); |
| button.setAttribute('onclick', uncalled); |
| button.addEventListener('click', t.step_func(() => { assert_equals(++i, 3) }), false); |
| button.onclick = t.step_func(() => { assert_equals(++i, 1); }); |
| button.addEventListener('click', t.step_func(() => { assert_equals(++i, 4) }), false); |
| button.click() |
| assert_equals(button.getAttribute("onclick"), uncalled) |
| assert_equals(i, 4); |
| }, "Event handler listeners should be registered when they are first set to an object value " + |
| "(" + format_value(object) + ")."); |
| }); |
| primitives.forEach(function(primitive) { |
| test(t => { |
| var i = 0; |
| firstEventHandler = t.unreached_func('First event handler.'); |
| var uncalled = "firstEventHandler();"; |
| var button = document.createElement('button'); |
| button.onclick = primitive; |
| assert_equals(button.onclick, null); |
| button.addEventListener('click', t.step_func(() => { assert_equals(++i, 1) }), false); |
| button.setAttribute('onclick', uncalled); // event handler listener is registered here |
| button.addEventListener('click', t.step_func(() => { assert_equals(++i, 3) }), false); |
| button.onclick = t.step_func(() => { assert_equals(++i, 2); }); |
| button.addEventListener('click', t.step_func(() => { assert_equals(++i, 4) }), false); |
| button.click() |
| assert_equals(button.getAttribute("onclick"), uncalled) |
| assert_equals(i, 4); |
| }, "Event handler listeners should be registered when they are first set to an object value " + |
| "(" + format_value(primitive) + ")."); |
| }); |
| test(t => { |
| var i = 0; |
| firstEventHandler = t.unreached_func('First event handler.'); |
| var uncalled = "firstEventHandler();"; |
| var button = document.createElement('button'); |
| button.addEventListener('click', t.step_func(() => { assert_equals(++i, 1) }), false); |
| button.setAttribute('onclick', uncalled); // event handler listener is registered here |
| button.addEventListener('click', t.step_func(() => { assert_equals(++i, 3) }), false); |
| button.onclick = t.step_func(() => { assert_equals(++i, 2); }); |
| button.addEventListener('click', t.step_func(() => { assert_equals(++i, 4) }), false); |
| button.click() |
| assert_equals(button.getAttribute("onclick"), uncalled) |
| assert_equals(i, 4); |
| }, "Event handler listeners should be registered when they are first set to an object value."); |