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Add <input pattern> tests for RegExp u flag #38281

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Feb 2, 2023
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Add <input pattern> tests for RegExp u flag #38281

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24 changes: 20 additions & 4 deletions html/semantics/forms/the-input-element/pattern_attribute.html
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Original file line number Diff line number Diff line change
@@ -1,19 +1,23 @@
<!DOCTYPE html>
<meta charset="utf-8">
<title>pattern attribute</title>
<meta name=viewport content="width=device-width">
<link rel="author" title="Fabrice Clari" href="mailto:[email protected]">
<link rel="author" title="Dimitri Bocquet" href="mailto:[email protected]">
<link rel="author" title="Mathias Bynens" href="https://mathiasbynens.be/">
<link rel="help" href="https://html.spec.whatwg.org/multipage/#attr-input-pattern">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<h1><code>pattern</code> attribute</h1>
<div style="display: none">
<input pattern="[a-z]{3}" value="abcd" title="three letters max">
<input pattern="[a-z]{3}" value="abcd" id="basic">
<input pattern="a.b" value="a&#x1D306;b" id="unicode-code-points">
<input pattern="\p{ASCII_Hex_Digit}+" value="c0ff33" id="unicode-property-escape">
</div>
<div id="log"></div>
<script>
test(function() {
const input = document.querySelector("input");
test(() => {
const input = document.querySelector("#basic");

assert_idl_attribute(input, "pattern");
assert_equals(input.pattern, "[a-z]{3}");
Expand All @@ -22,5 +26,17 @@ <h1><code>pattern</code> attribute</h1>
assert_false(input.validity.valid);

assert_true(input.matches(":invalid"));
}, "pattern attribute support on input element");
}, "basic <input pattern> support");

test(() => {
const input = document.querySelector("#unicode-code-points");
assert_true(input.validity.valid);
assert_true(input.matches(":valid"));
}, "<input pattern> is Unicode code point-aware");

test(() => {
const input = document.querySelector("#unicode-property-escape");
assert_true(input.validity.valid);
assert_true(input.matches(":valid"));
}, "<input pattern> supports Unicode property escape syntax");
</script>