Fix an evaluator test which was wrong and failed in debug builds.
diff --git a/test/evaluators.cpp b/test/evaluators.cpp
index 5c8e500..53556ae 100644
--- a/test/evaluators.cpp
+++ b/test/evaluators.cpp
@@ -96,7 +96,7 @@
// TODO: find a way to test direct traversal with array
VERIFY_IS_APPROX_EVALUATOR(m3.transpose(), Matrix3f::Identity().transpose()); // transpose
VERIFY_IS_APPROX_EVALUATOR(m3, 2 * Matrix3f::Identity()); // unary
- VERIFY_IS_APPROX_EVALUATOR(m3, Matrix3f::Identity() + m3); // binary
+ VERIFY_IS_APPROX_EVALUATOR(m3, Matrix3f::Identity() + Matrix3f::Zero()); // binary
VERIFY_IS_APPROX_EVALUATOR(m3.block(0,0,2,2), Matrix3f::Identity().block(1,1,2,2)); // block
// test linear traversal
