chromium/third_party/blink/web_tests/fast/forms/calendar-picker/date-picker-month-switcher-buttons-invalid.html

<!DOCTYPE html>
<meta name=fuzzy content="maxDifference=0-3; totalPixels=0-1000">
<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/common.js"></script>
<script src="../resources/picker-common.js"></script>
<script src="../calendar-picker/resources/calendar-picker-common.js"></script>

<input type="date" id="date-0" value="2019-05-22" max="2019-06-15">
<input type="date" id="date-1" value="2019-11-20" min="2019-10-29">
<input type="date" id="date-2" value="2019-03-15" step="7">
<input type="date" id="date-3" value="2019-03-15" step="8">
<input type="date" id="date-4" value="2019-08-02" step="7">
<script>

promise_test(() => {
  let dateElement = document.getElementById('date-0');
  return openPicker(dateElement)
  .then(() => {
    // Make the picker dismiss synchronously so we don't need to insert
    // an artificial delay in the test
    internals.pagePopupWindow.CalendarPicker.commitDelayMs = 0;

    clickNextMonthButton();
    assert_equals(dateElement.value, "2019-06-15", "Month chooser button should have changed month and stopped at max date");

    clickDayCellAt(2, 2);
    assert_equals(dateElement.value, "2019-06-11", "Clicking date should have changed date");
    assert_equals(internals.pagePopupWindow, null, "Clicking date should have dismissed popup");
  });
}, "Date picker: Next month button should advance to next month and clip selection to max date.");

promise_test(() => {
  let dateElement = document.getElementById('date-1');
  return openPicker(dateElement)
  .then(() => {
    // Make the picker dismiss synchronously so we don't need to insert
    // an artificial delay in the test
    internals.pagePopupWindow.CalendarPicker.commitDelayMs = 0;

    clickPrevMonthButton();
    assert_equals(dateElement.value, "2019-10-29", "Month chooser button should have changed month and stopped at min date");

    clickDayCellAt(4, 4);
    assert_equals(dateElement.value, "2019-10-31", "Clicking date should have changed date");
    assert_equals(internals.pagePopupWindow, null, "Clicking date should have dismissed popup");
  });
}, "Date picker: Previous month button should advance to previous month and clip selection to min date.");

promise_test(() => {
  let dateElement = document.getElementById('date-2');
  return openPicker(dateElement)
  .then(() => {
    // Make the picker dismiss synchronously so we don't need to insert
    // an artificial delay in the test
    internals.pagePopupWindow.CalendarPicker.commitDelayMs = 0;

    clickNextMonthButton();
    assert_equals(dateElement.value, "2019-04-12", "Closest valid date to 4-15 should have been selected");

    clickDayCellAt(5, 0);
    assert_equals(dateElement.value, "2019-04-05", "Clicking date should have changed date");
    assert_equals(internals.pagePopupWindow, null, "Clicking date should have dismissed popup");
  });
}, "Date picker: If same date in next month is invalid, next month button should choose closest value -- smaller date case");

promise_test(() => {
  let dateElement = document.getElementById('date-3');
  return openPicker(dateElement)
  .then(() => {
    // Make the picker dismiss synchronously so we don't need to insert
    // an artificial delay in the test
    internals.pagePopupWindow.CalendarPicker.commitDelayMs = 0;

    clickNextMonthButton();
    assert_equals(dateElement.value, "2019-04-16", "Closest valid date to 4-15 should have been selected");

    clickDayCellAt(3, 3);
    assert_equals(dateElement.value, "2019-04-24", "Clicking date should have changed date");
    assert_equals(internals.pagePopupWindow, null, "Clicking date should have dismissed popup");
  });
}, "Date picker: If same date in next month is invalid, next month button should choose closest value -- larger date case");

promise_test(() => {
  let dateElement = document.getElementById('date-4');
  return openPicker(dateElement)
  .then(() => {
    // Make the picker dismiss synchronously so we don't need to insert
    // an artificial delay in the test
    internals.pagePopupWindow.CalendarPicker.commitDelayMs = 0;

    clickNextMonthButton();
    assert_equals(dateElement.value, "2019-09-06", "Date in new month should be selected even though previous valid date is closer");

    clickDayCellAt(5, 2);
    assert_equals(dateElement.value, "2019-09-20", "Clicking date should have changed date");
    assert_equals(internals.pagePopupWindow, null, "Clicking date should have dismissed popup");
  });
}, "Date picker: If closest target date is back in the current month, still jump to the value in the next month");

</script>