diff --git a/testing/web-platform/tests/event-timing/tap-to-stop-fling.html b/testing/web-platform/tests/event-timing/TapToStopFling.html
similarity index 91%
rename from testing/web-platform/tests/event-timing/tap-to-stop-fling.html
rename to testing/web-platform/tests/event-timing/TapToStopFling.html
index d088612e86ef..df309d6584c7 100644
--- a/testing/web-platform/tests/event-timing/tap-to-stop-fling.html
+++ b/testing/web-platform/tests/event-timing/TapToStopFling.html
@@ -32,12 +32,10 @@
     assert_equals(entries.length, 2, "two pointerdown entries should be received");
     let entry = entries[0];
     assert_equals(entry.name, 'pointerdown');
-    assert_equals(entry.interactionId, 0, '1st pointerdown event should have a \
-    0 interaction id');
+    assert_equals(entry.interactionId, 0);
     entry = entries[1];
     assert_equals(entry.name, 'pointerdown');
-    assert_equals(entry.interactionId, 0, '2nd pointerdown event should have a \
-    0 interaction id');
+    assert_equals(entry.interactionId, 0);
   }
 
   promise_test(async t => {