diff --git a/src/test/java/fr/nancy/iut/SphereTest.java b/src/test/java/fr/nancy/iut/SphereTest.java
index 3337a7b25f5ea0131e18493319c42fc748886975..cd55e7c8d066d6a5e463db204e945ec9506e65de 100644
--- a/src/test/java/fr/nancy/iut/SphereTest.java
+++ b/src/test/java/fr/nancy/iut/SphereTest.java
@@ -26,4 +26,11 @@ public class SphereTest {
     assertEquals(new Point3d(0.0, 0.0, 0.0), mySphere.getPos());
   }
 
+  @Test
+  public void testDistanceSquaredTo() {
+    Sphere mySphere = new Sphere(1.5);
+    Sphere otherSphere = new Sphere(1.5, new Point3d(1.0, 1.0, 1.0));
+    assertEquals(3.0, mySphere.distanceSquaredTo(otherSphere), 0.0);
+  }
+
 }
\ No newline at end of file