Layout animation time bindable (#11264) c95fe9334e

Co-authored-by: Philip Chung <philterdesign@gmail.com>

tests/unit_tests/runtime/layout_test.cpp

@@ -517,4 +517,36 @@ TEST_CASE("Layout background & foreground shape paints.", "[silver]")
     }
 
     CHECK(silver.matches("layout_paint"));
+}
+
+TEST_CASE("Layout animation time databound", "[silver]")
+{
+    rive::SerializingFactory silver;
+    auto file = ReadRiveFile("assets/layout/layout_anim_bound.riv", &silver);
+
+    auto artboard = file->artboardDefault();
+
+    silver.frameSize(artboard->width(), artboard->height());
+
+    REQUIRE(artboard != nullptr);
+    auto viewModelInstance =
+        file->createDefaultViewModelInstance(artboard.get());
+    REQUIRE(viewModelInstance != nullptr);
+    artboard->bindViewModelInstance(viewModelInstance);
+    auto stateMachine = artboard->stateMachineAt(0);
+
+    stateMachine->advanceAndApply(0.1f);
+
+    auto renderer = silver.makeRenderer();
+    artboard->draw(renderer.get());
+
+    int frames = 32;
+    for (int i = 0; i < frames; i++)
+    {
+        silver.addFrame();
+        stateMachine->advanceAndApply(0.016f);
+        artboard->draw(renderer.get());
+    }
+
+    CHECK(silver.matches("layout_anim_bound"));
 }