1 files changed, 38 insertions, 0 deletions
diff --git a/layout/reftests/svg/smil/anim-feComposite-operator-01.svg b/layout/reftests/svg/smil/anim-feComposite-operator-01.svg
new file mode 100644
index 0000000000..0223cea931
--- /dev/null
+++ b/layout/reftests/svg/smil/anim-feComposite-operator-01.svg
@@ -0,0 +1,38 @@
+<svg xmlns="http://www.w3.org/2000/svg"
+     xmlns:xlink="http://www.w3.org/1999/xlink"
+     class="reftest-wait"
+     onload="setTimeAndSnapshot(1, true)">
+  <title>Test animation of the "operator" enum attribute on the "feComposite" element</title>
+  <script xlink:href="smil-util.js" type="text/javascript"/>
+  <filter id="composite_filter_1" x="-100%" y="0%" width="200%" height="100%">
+    <feFlood flood-color="lime" result="lime"/>
+    <feComposite in="lime" in2="SourceGraphic" operator="out">
+      <!-- this should turn the referencing element red at 1.25s -->
+      <animate attributeName="operator"
+               calcMode="discrete"
+               begin="0s" dur="2.5s"
+               from="out" to="in"
+               fill="freeze"/>
+    </feComposite>
+  </filter>
+  <filter id="composite_filter_2" x="0%" y="0%" width="200%" height="100%">
+    <feFlood flood-color="lime" result="lime"/>
+    <feComposite in="lime" in2="SourceGraphic" operator="out">
+      <!-- this should turn the referencing element lime at 1s -->
+      <animate attributeName="operator"
+               calcMode="discrete"
+               begin="0s" dur="2s"
+               from="out" to="in"
+               fill="freeze"/>
+    </feComposite>
+  </filter>
+  <rect width="100%" height="100%" fill="lime"/>
+
+  <!-- 40% through discrete animation simple duration - test animation doesn't affect the element too early -->
+  <rect         width="100" height="100" fill="red"/>
+  <rect x="100" width="100" height="100" fill="red" filter="url(#composite_filter_1)"/>
+
+  <!-- 50% through discrete animation simple duration - test animation affects the element now -->
+  <rect y="100" width="100" height="100" fill="red"/>
+  <rect y="100" width="100" height="100" fill="red" filter="url(#composite_filter_2)"/>
+</svg>