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-rw-r--r--test/geo_quaternion.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/geo_quaternion.cpp b/test/geo_quaternion.cpp
index 1da683c0e..b339a5f39 100644
--- a/test/geo_quaternion.cpp
+++ b/test/geo_quaternion.cpp
@@ -75,6 +75,11 @@ template<typename Scalar, int Options> void quaternion(void)
q1.coeffs().setRandom();
VERIFY_IS_APPROX(q1.coeffs(), (q1*q2).coeffs());
+ // Printing
+ std::ostringstream ss;
+ ss << q2;
+ VERIFY(ss.str() == "0i + 0j + 0k + 1");
+
// concatenation
q1 *= q2;