Add tests for animating flag.

unit_tests/flow/components.cpp

@@ -0,0 +1,71 @@
+#include <alia/flow/components.hpp>
+
+#include <flow/testing.hpp>
+
+TEST_CASE("animating components", "[flow][components]")
+{
+    clear_log();
+
+    int iteration = -1;
+
+    component_container_ptr top(new component_container);
+    component_container_ptr left(new component_container);
+    component_container_ptr bottom(new component_container);
+    component_container_ptr right(new component_container);
+
+    alia::system sys;
+    initialize_system(sys, [&](context ctx) {
+        scoped_component_container scoped_top(ctx, &top);
+        if (iteration == 0)
+            mark_animating_component(ctx);
+        {
+            scoped_component_container scoped_left(ctx, &left);
+            if (iteration == 1)
+                mark_animating_component(ctx);
+            {
+                scoped_component_container scoped_bottom(ctx, &bottom);
+                if (iteration == 2)
+                    mark_animating_component(ctx);
+            }
+        }
+        {
+            scoped_component_container scoped_right(ctx, &right);
+            if (iteration == 3)
+                mark_animating_component(ctx);
+        }
+    });
+
+    refresh_system(sys);
+    REQUIRE(!top->animating);
+    REQUIRE(!left->animating);
+    REQUIRE(!bottom->animating);
+    REQUIRE(!right->animating);
+
+    ++iteration;
+    refresh_system(sys);
+    REQUIRE(top->animating);
+    REQUIRE(!left->animating);
+    REQUIRE(!bottom->animating);
+    REQUIRE(!right->animating);
+
+    ++iteration;
+    refresh_system(sys);
+    REQUIRE(top->animating);
+    REQUIRE(left->animating);
+    REQUIRE(!bottom->animating);
+    REQUIRE(!right->animating);
+
+    ++iteration;
+    refresh_system(sys);
+    REQUIRE(top->animating);
+    REQUIRE(left->animating);
+    REQUIRE(bottom->animating);
+    REQUIRE(!right->animating);
+
+    ++iteration;
+    refresh_system(sys);
+    REQUIRE(top->animating);
+    REQUIRE(!left->animating);
+    REQUIRE(!bottom->animating);
+    REQUIRE(right->animating);
+}