| <!DOCTYPE html> |
| <title>When non-empty placeholder becomes empty, :placeholder-shown test</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <link rel="help" href="https://drafts.csswg.org/selectors-4/#placeholder"> |
| <input id="myinput" type="text" placeholder="FAIL"> |
| <textarea id="mytextarea" placeholder="FAIL"></textarea> |
| <script> |
| test(() => { |
| const input = document.querySelector("input"); |
| input.placeholder = ""; |
| input.value = "NO RED"; |
| assert_false(input.matches(":placeholder-shown")); |
| }, "input:placeholder-shown should not be matched"); |
| |
| test(() => { |
| const textarea = document.querySelector("textarea"); |
| textarea.placeholder = ""; |
| textarea.value = "No RED"; |
| assert_false(textarea.matches(":placeholder-shown")); |
| }, "textarea:placeholder-shown should not be matched"); |
| </script> |
