diff --git a/cpp/testPoint2.cpp b/cpp/testPoint2.cpp
index cccd6819c..906d48a7a 100644
--- a/cpp/testPoint2.cpp
+++ b/cpp/testPoint2.cpp
@@ -21,15 +21,11 @@ TEST( Point2, expmap)
 }
 
 /* ************************************************************************* */
-TEST( Point2, add)
+TEST( Point2, arithmetic)
 {
-	CHECK(assert_equal( Point2(4,5)+Point2(1,1), Point2(5,6) ));
-}
-
-/* ************************************************************************* */
-TEST( Point2, subtract)
-{
-	CHECK(assert_equal( Point2(4,5)-Point2(1,1), Point2(3,4) ));
+	CHECK(assert_equal( Point2(-5,-6), -Point2(5,6) ));
+	CHECK(assert_equal( Point2(5,6), Point2(4,5)+Point2(1,1)));
+	CHECK(assert_equal( Point2(3,4), Point2(4,5)-Point2(1,1) ));
 }
 
 /* ************************************************************************* */