From 54fbbe7b4ec085260b6ad79a9eb912416482516d Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Wed, 9 Jul 2014 13:06:06 +0200
Subject: [PATCH] Add unit test for bug #839.

---
 test/triangular.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/triangular.cpp b/test/triangular.cpp
index 54320390b..936c2aef3 100644
--- a/test/triangular.cpp
+++ b/test/triangular.cpp
@@ -113,6 +113,13 @@ template<typename MatrixType> void triangular_square(const MatrixType& m)
   m3.setZero();
   m3.template triangularView<Upper>().setOnes();
   VERIFY_IS_APPROX(m2,m3);
+  
+  m1.setRandom();
+  m3 = m1.template triangularView<Upper>();
+  Matrix<Scalar, MatrixType::ColsAtCompileTime, Dynamic> m5(cols, internal::random<int>(1,20));  m5.setRandom();
+  Matrix<Scalar, Dynamic, MatrixType::RowsAtCompileTime> m6(internal::random<int>(1,20), rows);  m6.setRandom();
+  VERIFY_IS_APPROX(m1.template triangularView<Upper>() * m5, m3*m5);
+  VERIFY_IS_APPROX(m6*m1.template triangularView<Upper>(), m6*m3);
 
 }