Test style update of the :placeholder-shown pseudo class. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Initial state is without placehoder. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(255, 255, 255)" Adding a placeholder matches. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(1, 2, 3)" Adding a placehoder and an empty value. An empty value does not prevent matching. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(1, 2, 3)" Changing the type of the input to something that does not support placeholder. The input element should not match. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(1, 2, 3)" Changing the type of the input to text should add the style back. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(1, 2, 3)" Adding a non empty value should remove the style. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(255, 255, 255)" Removing the placeholder, we should not match. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(255, 255, 255)" Removing the value. We should still not match since the placeholder attribute was removed. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(255, 255, 255)" Putting back a value, no reason to match. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(255, 255, 255)" Adding back the placeholder, the value is still there so we cannot match yet. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(255, 255, 255)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(255, 255, 255)" Removing the value. A placeholder was added while the value was up, we should get the style now. PASS getComputedStyle(document.getElementById("input-with-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("textarea-with-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("input-without-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS getComputedStyle(document.getElementById("textarea-without-renderer")).backgroundColor is "rgb(1, 2, 3)" PASS successfullyParsed is true TEST COMPLETE