chromium/third_party/blink/web_tests/fast/forms/calendar-picker/date-picker-select-value-with-keyboard.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="date0" value="2019-02-14">
<input type="date" id="date1" value="2019-02-14" step="2">
<input type="date" id="date2" value="2019-02-14" step="30">
<input type="date" id="date3" value="2019-02-14" min="2019-02-13">
<input type="date" id="date4" value="2019-02-14" max="2019-02-21">

<script>
promise_test(() => {
  let dateElement = document.getElementById("date0");
  return openPicker(dateElement)
  .then(() => {
    eventSender.keyDown('ArrowRight');
    eventSender.keyDown('ArrowDown');
    assert_equals(dateElement.value, "2019-02-22", "Using arrow keys to navigate date picker should update in-page control without pressing Enter key.");

    eventSender.keyDown('Enter');
    assert_equals(internals.pagePopupWindow, null, "Enter key should dismiss popup.");
    assert_equals(dateElement.value, "2019-02-22", "Updated date should remain after closing popup with Enter.");
  });
}, "Date picker: Arrow keys should allow user to chooser date");

promise_test(() => {
  let dateElement = document.getElementById("date1");
  return openPicker(dateElement)
  .then(() => {
    eventSender.keyDown('ArrowRight');
    assert_equals(dateElement.value, "2019-02-16", "Right arrow key should skip over invalid date.");

    eventSender.keyDown('Enter');
    assert_equals(internals.pagePopupWindow, null, "Enter key should dismiss popup.");
  });
}, "Date picker: Picker with step should allow keyboard user to jump over invalid values -- right arrow");

promise_test(() => {
  let dateElement = document.getElementById("date1");
  return openPicker(dateElement)
  .then(() => {
    eventSender.keyDown('ArrowUp');
    assert_equals(dateElement.value, "2019-02-08", "Up arrow key should skip over invalid date.");

    eventSender.keyDown('Enter');
    assert_equals(internals.pagePopupWindow, null, "Enter key should dismiss popup.");
  });
}, "Date picker: Picker with step should allow keyboard user to jump over invalid values -- up arrow");

promise_test(() => {
  let dateElement = document.getElementById("date2");
  return openPicker(dateElement)
  .then(() => {
    eventSender.keyDown('ArrowDown');
    assert_equals(dateElement.value, "2019-03-16", "Arrow key should skip to next valid date even if it's in a different month.");

    eventSender.keyDown('Enter');
    assert_equals(internals.pagePopupWindow, null, "Enter key should dismiss popup.");
  });
}, "Date picker: Picker with step should allow keyboard user to skip to next month with valid date");

promise_test(() => {
  let dateElement = document.getElementById("date3");
  return openPicker(dateElement)
  .then(() => {
    eventSender.keyDown('ArrowLeft');
    eventSender.keyDown('ArrowLeft');
    eventSender.keyDown('ArrowUp');
    assert_equals(dateElement.value, "2019-02-13", "Min attribute should prevent user from arrowing into invalid values");

    eventSender.keyDown('Enter');
    assert_equals(internals.pagePopupWindow, null, "Enter key should dismiss popup.");
  });
}, "Date picker: Picker with min value should prevent user from using arrow keys to get into invalid values");

promise_test(() => {
  let dateElement = document.getElementById("date4");
  return openPicker(dateElement)
  .then(() => {
    eventSender.keyDown('ArrowDown');
    eventSender.keyDown('ArrowDown');
    eventSender.keyDown('ArrowRight');
    assert_equals(dateElement.value, "2019-02-21", "Max attribute should prevent user from arrowing into invalid values");

    eventSender.keyDown('Enter');
    assert_equals(internals.pagePopupWindow, null, "Enter key should dismiss popup.");
  });
}, "Date picker: Picker with max value should prevent user from using arrow keys to get into invalid values");

</script>