1 files changed, 11 insertions, 3 deletions
diff --git a/testing/web-platform/tests/css/css-scroll-snap-2/snapchanging/snapchanging-on-programmatic-scroll.tentative.html b/testing/web-platform/tests/css/css-scroll-snap-2/snapchanging/snapchanging-on-programmatic-scroll.tentative.html
index 86946b84e9..6e7b0126f7 100644
--- a/testing/web-platform/tests/css/css-scroll-snap-2/snapchanging/snapchanging-on-programmatic-scroll.tentative.html
+++ b/testing/web-platform/tests/css/css-scroll-snap-2/snapchanging/snapchanging-on-programmatic-scroll.tentative.html
@@ -9,6 +9,7 @@
   <script src="/resources/testdriver-vendor.js"></script>
   <script src="/dom/events/scrolling/scroll_support.js"></script>
   <script src="/css/css-scroll-snap-2/resources/common.js"></script>
+  <script src="/css/css-scroll-snap-2/resources/programmatic-scroll-common.js"></script>
   <script src="/web-animations/testcommon.js"></script>
 </head>
 
@@ -73,6 +74,7 @@
   </div>
   <script>
     const scroller = document.getElementById("scroller");
+    const snap_area_2 = document.getElementById("snap_area_2");
 
     promise_test(async (t) => {
       await waitForCompositorCommit();
@@ -81,17 +83,23 @@
         scrolling_function: async () => {
           scroller.scrollTo(0, snap_area_2.offsetTop);
         },
-        expected_snap_targets: [snap_area_2.id],
+        expected_snap_targets: { block: snap_area_2, inline: null },
         expected_scroll_offsets: {
           x: 0,
           y: snap_area_2.offsetTop
         }
       };
-      await test_snap_event_deprecated(t, test_data, "snapchanging");
+      await test_snap_event(t, test_data, "snapchanging");
     }, "snapchanging fires on programmatic scrolls that changes a scroller's" +
     " snap targets.");
 
     promise_test(async (t) => {
+      await test_programmatic_scroll_onsnapchanging(t, scroller, scroller,
+                                                    snap_area_2);
+    }, "programmatic scroll triggers Element.onsnapchanging when scrolling a " +
+       "snap container");
+
+    promise_test(async (t) => {
       checkSnapEventSupport("snapchanging");
       await waitForScrollReset(t, scroller);
       await waitForCompositorCommit();
@@ -106,7 +114,7 @@
       assert_equals(evt, null, "no snap event since scroller is back to top");
       assert_equals(scroller.scrollTop, 0, "scroller snaps back to the top");
       assert_equals(scroller.scrollLeft, 0, "scroller snaps back to the left");
-    });
+    }, "snapchanging should not fire since the snap target doesn't change.");
   </script>
 </body>