Add tests for shape size

emilk · Jan 2, 2025 · 65fbce1 · 65fbce1
1 parent 64f0775
commit 65fbce1
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Showing 2 changed files with 16 additions and 0 deletions.
diff --git a/crates/epaint/src/shapes/rect_shape.rs b/crates/epaint/src/shapes/rect_shape.rs
@@ -42,6 +42,14 @@ pub struct RectShape {
     pub uv: Rect,
 }
 
+#[test]
+fn rect_shape_size() {
+    assert_eq!(
+        std::mem::size_of::<RectShape>(), 72,
+        "RectShape changed size! If it shrank - good! Update this test. If it grew - bad! Try to find a way to avoid it."
+    );
+}
+
 impl RectShape {
     /// The stroke extends _outside_ the [`Rect`].
     #[inline]

diff --git a/crates/epaint/src/shapes/shape.rs b/crates/epaint/src/shapes/shape.rs
@@ -68,6 +68,14 @@ pub enum Shape {
     Callback(PaintCallback),
 }
 
+#[test]
+fn shape_size() {
+    assert_eq!(
+        std::mem::size_of::<Shape>(), 72,
+        "Shape changed size! If it shrank - good! Update this test. If it grew - bad! Try to find a way to avoid it."
+    );
+}
+
 #[test]
 fn shape_impl_send_sync() {
     fn assert_send_sync<T: Send + Sync>() {}