tor-browser

commit ed88a0583f7e9b59b52398d664d8019677a298b3
parent f2e4ee452cab5b2c28809768f303e479d20ab7cb
Author: Emilio Cobos Álvarez <emilio@crisal.io>
Date:   Thu, 16 Oct 2025 18:23:10 +0000

Bug 1994673 - Adjust try-tactic-alignment to test rendering. r=layout-anchor-positioning-reviewers,dshin

Make try-tactic-alignment test the actual rendering, not
getComputedStyle result, in order to not depend on whether the
@position-try style is exposed via that API.

Differential Revision: https://phabricator.services.mozilla.com/D268913

Diffstat:
M
testing/web-platform/meta/css/css-anchor-position/try-tactic-alignment.html.ini
 | 
36
------------------------------------
M
testing/web-platform/tests/css/css-anchor-position/try-tactic-alignment.html
 | 
10
+++++++++-

2 files changed, 9 insertions(+), 37 deletions(-)
diff --git a/testing/web-platform/meta/css/css-anchor-position/try-tactic-alignment.html.ini b/testing/web-platform/meta/css/css-anchor-position/try-tactic-alignment.html.ini
@@ -1,40 +1,4 @@
 [try-tactic-alignment.html]
-  [, justify-self:start]
-    expected: FAIL
-
-  [, justify-self:end]
-    expected: FAIL
-
-  [, justify-self:self-start]
-    expected: FAIL
-
-  [, justify-self:self-end]
-    expected: FAIL
-
-  [, justify-self:flex-start]
-    expected: FAIL
-
-  [, justify-self:flex-end]
-    expected: FAIL
-
-  [, align-self:start]
-    expected: FAIL
-
-  [, align-self:end]
-    expected: FAIL
-
-  [, align-self:self-start]
-    expected: FAIL
-
-  [, align-self:self-end]
-    expected: FAIL
-
-  [, align-self:flex-start]
-    expected: FAIL
-
-  [, align-self:flex-end]
-    expected: FAIL
-
   [flip-inline, justify-self:start]
     expected: FAIL
 
diff --git a/testing/web-platform/tests/css/css-anchor-position/try-tactic-alignment.html b/testing/web-platform/tests/css/css-anchor-position/try-tactic-alignment.html
@@ -148,8 +148,16 @@ function test_computed_value(try_tactic, property, value, expected) {
       #target {
         position-try-fallbacks: --pf ${try_tactic};
       }
+      @position-try --ref {
+        inset: 0;
+        ${property}:${expected};
+      }
+      #ref {
+        position-try-fallbacks: --ref;
+      }
     `;
-    assert_equals(getComputedStyle(target).getPropertyValue(property), expected);
+    assert_equals(target.offsetLeft, ref.offsetLeft, 'offsetLeft');
+    assert_equals(target.offsetTop, ref.offsetTop, 'offsetTop');
   }, `${try_tactic}, ${property}:${value}`);
 }