chromium/third_party/blink/web_tests/fast/forms/date/input-valueasdate-date.html

<!DOCTYPE html>
<html>
<head>
<script src="../../../resources/js-test.js"></script>
</head>
<body>
<p id="description"></p>
<div id="console"></div>
<script>
description('Tests for .valueAsDate with &lt;input type=date>.');

var input = document.createElement('input');
input.type = 'date';

function valueAsDateFor(stringValue) {
    input.value = stringValue;
    return input.valueAsDate;
}

function setValueAsDateAndGetValue(year, month, day) {
    var date = new Date();
    date.setTime(Date.UTC(year, month, day));
    if (year < 100)
        date.setUTCFullYear(year);
    input.valueAsDate = date;
    return input.value;
}

shouldBe('valueAsDateFor("")', 'null');
shouldBe('valueAsDateFor("1601-01-01").getTime()', 'Date.UTC(1601, 0, 1)');
shouldBe('valueAsDateFor("1969-12-31").getTime()', 'Date.UTC(1969, 11, 31)');
shouldBe('valueAsDateFor("1970-01-01").getTime()', 'Date.UTC(1970, 0, 1)');
shouldBe('valueAsDateFor("2009-12-22").getTime()', 'Date.UTC(2009, 11, 22)');

shouldBeEqualToString('setValueAsDateAndGetValue(1601, 0, 1)', '1601-01-01');
shouldBeEqualToString('setValueAsDateAndGetValue(1969, 11, 1)', '1969-12-01');
shouldBeEqualToString('setValueAsDateAndGetValue(1970, 0, 1)', '1970-01-01');
shouldBeEqualToString('setValueAsDateAndGetValue(2009, 11, 31)', '2009-12-31');
shouldBeEqualToString('setValueAsDateAndGetValue(10000, 0, 1)', '10000-01-01');

shouldBeEqualToString('setValueAsDateAndGetValue(-1, 0, 1)', '');
shouldBeEqualToString('setValueAsDateAndGetValue(0, 11, 31)', '');
shouldBeEqualToString('setValueAsDateAndGetValue(1, 0, 1)', '0001-01-01');
shouldBeEqualToString('setValueAsDateAndGetValue(1582, 9, 15)', '1582-10-15');
shouldBeEqualToString('setValueAsDateAndGetValue(1582, 9, 31)', '1582-10-31');
shouldBeEqualToString('setValueAsDateAndGetValue(275760, 8, 13)', '275760-09-13');
shouldBeEqualToString('setValueAsDateAndGetValue(275760, 8, 14)', ''); // Date of JavaScript can't represent this.

debug('Invalid objects:');
shouldThrow('input.valueAsDate = document');
shouldBeEqualToString('input.value = "2010-01-01"; input.valueAsDate = null; input.value', '');
</script>
</body>
</html>