diff --git a/crates/algorithms/src/rect.rs b/crates/algorithms/src/rect.rs
index eb8479bb..9307d474 100644
--- a/crates/algorithms/src/rect.rs
+++ b/crates/algorithms/src/rect.rs
@@ -102,7 +102,7 @@ pub fn to_axis_aligned_rectangle<P: IntoIterator<Item = PathEvent>>(
                     }
                 }
 
-                ctx.edge(from, to);
+                ctx.edge(from, to)?;
             }
             PathEvent::Cubic {
                 from,
@@ -139,7 +139,7 @@ pub fn to_axis_aligned_rectangle<P: IntoIterator<Item = PathEvent>>(
                     return None;
                 }
 
-                ctx.edge(from, to);
+                ctx.edge(from, to)?;
             }
         }
     }
diff --git a/crates/algorithms/src/rounded_polygon.rs b/crates/algorithms/src/rounded_polygon.rs
index fdf7e6c1..6a7228aa 100644
--- a/crates/algorithms/src/rounded_polygon.rs
+++ b/crates/algorithms/src/rounded_polygon.rs
@@ -203,7 +203,7 @@ fn rounded_polygon() {
     let mut previous = actual_events[0].to();
 
     for e in actual_events {
-        e.from().approx_eq(&previous);
+        assert!(e.from().approx_eq(&previous));
         previous = e.to();
     }
 }