JavaScript validity.tooShort returns false when true

[jabcreations]

HTML:
<input id="test" minlength="4" type="text" value="123" />

JavaScript:
document.getElementById('test').validity.tooShort

Simple: the value here has a length of three, the minlength attribute species four characters while validity.tooShort incorrectly returns false when it should be true.

It should be a simple fix for someone familiar with the code.