chromium/third_party/blink/web_tests/external/wpt/pointerevents/compat/pointerevent_mouse-pointer-updown-events.html

<!DOCTYPE HTML>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script type="text/javascript" src="../pointerevent_support.js"></script>
<style>
div.box {
  margin: 10px;
  padding: 50px;
  float: left;
}
</style>
<h1>Verifies that pointerup/down are fired correctly for corresponding mouse events</h1>
<div id="lightgreen" class="box" style="background-color:lightgreen">
  <div id="green" class="box" style="background-color:green">
  </div>
</div>

<div id="console"></div>

<script>
var eventsReceived = [];
function init() {
  var eventList = ["mousedown", "mouseup", "pointerdown", "pointerup"];

  ["green", "lightgreen"].forEach(function(id) {
    var targetDiv = document.getElementById(id);

    eventList.forEach(function(eventName) {
      targetDiv.addEventListener(eventName, function(event) {
        eventsReceived.push(`${event.type}@${id}`);
      });
    });
  });
}

function performActions() {
  var rect = document.getElementById("green").getBoundingClientRect();
  var x1 = Math.ceil(rect.left + 5);
  var y1 = Math.ceil(rect.top + 5);

  var rect = document.getElementById("lightgreen").getBoundingClientRect();
  var x2 = Math.ceil(rect.left + 5);
  var y2 = Math.ceil(rect.top + 5);

  return new test_driver.Actions()
            .pointerMove(x1, y1)
            .pointerDown()
            .pointerUp()
            .pointerDown()

            .pointerMove(x2, y2)
            .pointerUp()
            .pointerDown()

            .pointerMove(x1, y1)
            .pointerUp()
            .send()
            .then(()=>resolveWhen(()=>eventsExpected.length === eventsReceived.length));
}
var eventsExpected = ["pointerdown@green", "pointerdown@lightgreen",
              "mousedown@green", "mousedown@lightgreen",
              "pointerup@green", "pointerup@lightgreen",
              "mouseup@green", "mouseup@lightgreen",
              "pointerdown@green", "pointerdown@lightgreen",
              "mousedown@green", "mousedown@lightgreen",
              "pointerup@lightgreen", "mouseup@lightgreen",
              "pointerdown@lightgreen", "mousedown@lightgreen",
              "pointerup@green", "pointerup@lightgreen",
              "mouseup@green", "mouseup@lightgreen"];
function runTests(){
  promise_test((test) => {
    return new Promise(async (resolve)=>{
      await performActions();
      test.step(()=>{
        assert_array_equals(eventsExpected, eventsReceived);
      });
      resolve();
    });
  }, "pointerup/down events are fired correctly for corresponding mouse events");
}

init();
runTests();
</script>