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<!DOCTYPE html>
<html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
</head>
<body>
<input type="number" id="number_input">
<script>
promise_test(async function() {
const inputElement = document.getElementById("number_input");
let events = [];
inputElement.addEventListener("beforeinput", () => {
events.push("beforeinput");
});
inputElement.addEventListener("input", () => {
events.push("input");
});
inputElement.addEventListener("change", () => {
events.push("change");
});
// Roughly get the offset to the spin up arrow button's center point within
// the iframe's viewport. Note that this is fragile and might need specific
// coordinates for each browser and maybe platform.
const rect = inputElement.getBoundingClientRect();
const x = Math.round(rect.x + rect.width - 10);
const y = Math.round(rect.y + rect.height / 4);
const actions = new test_driver.Actions()
.pointerMove(x, y, { origin: "viewport" })
.pointerDown()
.pointerUp();
await actions.send();
assert_array_equals(events, ['beforeinput','input','change']);
}, "Number input should fire beforeinput event before the input and change event");
</script>
</body>
</html>
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