datetimelocal-multiple-fields-change-layout-by-value.html

<!DOCTYPE html>
<html>
<body>
<script src="../../../resources/js-test.js"></script>
<script>
description('Change multiple fields datetime-local input UI layout by value');
var testInput = document.createElement('input');
testInput.type = 'datetime-local';
testInput.max = '9999-12-31T23:59';
document.body.appendChild(testInput);
var widthOfEmptyValue = testInput.offsetWidth;

testInput.value = '10000-01-01T00:00';
var widthOfOverflowValue = testInput.offsetWidth;
shouldBeTrue('widthOfEmptyValue < widthOfOverflowValue');

testInput.value = '2012-10-05T12:00';
var widthOfValidValue = testInput.offsetWidth;
shouldBe('widthOfEmptyValue', 'widthOfValidValue');

testInput.value = '2012-10-05T12:00:01';
var widthWithSecond = testInput.offsetWidth;
shouldBeTrue('widthOfEmptyValue < widthWithSecond');

testInput.value = '2012-10-05T12:00:01.234';
var widthWithMillisecond = testInput.offsetWidth;
shouldBeTrue('widthWithSecond < widthWithMillisecond');

document.body.removeChild(testInput);
</script>
</body>
</html>

chromium/third_party/blink/web_tests/fast/forms/datetimelocal-multiple-fields/datetimelocal-multiple-fields-change-layout-by-value.html