From b69579f665580d05ef973993b853529cca88201a Mon Sep 17 00:00:00 2001
From: Pixel998 <mrhbs998@gmail.com>
Date: Fri, 14 Aug 2026 01:21:04 +0300
Subject: [PATCH] test: cover `@supports` feature functions

---
 tests/rules/no-invalid-at-rules.test.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/rules/no-invalid-at-rules.test.js b/tests/rules/no-invalid-at-rules.test.js
index 2a87fbd6..0ac2530e 100644
--- a/tests/rules/no-invalid-at-rules.test.js
+++ b/tests/rules/no-invalid-at-rules.test.js
@@ -29,6 +29,14 @@ ruleTester.run("no-invalid-at-rules", rule, {
 		"@font-face { font-family: 'MyFont'; src: url('myfont.woff2') format('woff2'); }",
 		"@keyframes slidein { from { transform: translateX(0%); } to { transform: translateX(100%); } }",
 		"@supports (display: grid) { .grid-container { display: grid; } }",
+		"@supports not (not (transform-origin: 2px)) {}",
+		"@supports selector(.example) {}",
+		"@supports font-tech(color-COLRv1) {}",
+		"@supports font-format(opentype) {}",
+		'@supports font-format("woff2") {}',
+		"@supports at-rule(@scope) {}",
+		"@supports named-feature(anchor-position-follows-transforms) {}",
+		"@supports env(safe-area-inset-top) {}",
 		"@namespace url(http://www.w3.org/1999/xhtml);",
 		'@charset "UTF-8";',
 		'@charset "UTF-8"; @import url("foo.css");',