1 files changed, 0 insertions, 81 deletions
diff --git a/testing/web-platform/tests/css/css-anchor-position/at-position-fallback-cssom.html b/testing/web-platform/tests/css/css-anchor-position/at-position-fallback-cssom.html
deleted file mode 100644
index df295bf2d0..0000000000
--- a/testing/web-platform/tests/css/css-anchor-position/at-position-fallback-cssom.html
+++ /dev/null
@@ -1,81 +0,0 @@
-<!DOCTYPE html>
-<title>Tests the CSSOM interfaces of @position-fallback and @try rules</title>
-<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#interfaces">
-<link rel="author" href="mailto:xiaochengh@chromium.org">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-
-<div id="anchor"></div>
-<div id="not-anchor"></div>
-<div id="target"></div>
-
-<script>
-function createStyle(t, text) {
-  const style = document.createElement('style');
-  style.textContent = text;
-  t.add_cleanup(() => style.remove());
-  document.head.appendChild(style);
-  return style;
-}
-
-test(t => {
-  const style = createStyle(
-      t, '@position-fallback --pf { @try { left: anchor(right); } }');
-  const positionFallbackRule = style.sheet.cssRules[0];
-  assert_true(positionFallbackRule instanceof CSSPositionFallbackRule);
-  assert_equals(positionFallbackRule.name, '--pf');
-  assert_equals(positionFallbackRule.cssRules.length, 1);
-
-  const tryRule = positionFallbackRule.cssRules[0];
-  assert_true(tryRule instanceof CSSTryRule);
-  assert_true(tryRule.style instanceof CSSStyleDeclaration);
-  assert_equals(tryRule.style.length, 1);
-  assert_equals(tryRule.style.left, 'anchor(right)');
-}, 'CSSPositionFallbackRule and CSSTryRule attribute values');
-
-test(t => {
-  const style = createStyle(t, '@position-fallback --pf {}');
-  const positionFallbackRule = style.sheet.cssRules[0];
-
-  assert_equals(positionFallbackRule.insertRule('@try {}', 0), 0,
-                '@try rules can be inserted');
-  assert_throws_dom('HierarchyRequestError',
-                    () => positionFallbackRule.insertRule('#target { color: red; }', 1),
-                    'style rules cannot be inserted');
-  assert_throws_dom('HierarchyRequestError',
-                    () => positionFallbackRule.insertRule('@keyframes foo {}', 1),
-                    'other at-rules cannot be inserted');
-}, 'CSSPositionFallbackRule.insertRule can insert @try rules only');
-
-
-test(t => {
-  const style = createStyle(t, `
-    @position-fallback --pf { @try { top: anchor(top); } }
-    #anchor, #not-anchor, #target {
-      position: absolute; width: 100px; height: 100px; left: 0;
-    }
-    #anchor { top: 100px; anchor-name: --a; }
-    #not-anchor { top: 200px; anchor-name: --b; }
-    #target { position-fallback: --pf; anchor-default: --a; }
-  `);
-  const positionFallbackRule = style.sheet.cssRules[0];
-  const tryRule = positionFallbackRule.cssRules[0];
-
-  // Check the initial position fallback result
-  assert_equals(target.getBoundingClientRect().left, 0);
-  assert_equals(target.getBoundingClientRect().top, 100);
-
-  // `left` is an allowed property in `@try` and should affect position fallback.
-  tryRule.style.setProperty('left', 'anchor(right)');
-  assert_equals(target.getBoundingClientRect().left, 100);
-  assert_equals(target.getBoundingClientRect().top, 100);
-
-  // These properties are disallowed in `@try` rule, and hence should not affect
-  // position fallback.
-  tryRule.style.setProperty('anchor-default', '--b');
-  tryRule.style.setProperty('position', 'static');
-  assert_equals(target.getBoundingClientRect().left, 100);
-  assert_equals(target.getBoundingClientRect().top, 100);
-}, 'CSSTryRule.style.setProperty setting allowed and disallowed properties');
-
-</script>