From 3cb6e21f80150345d8d8eeaf75b185e66a4a3c95 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 9 Apr 2013 11:12:35 +0200
Subject: Fix bug #562: add vector-wise normalized and normalize functions

---
 test/vectorwiseop.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'test/vectorwiseop.cpp')

diff --git a/test/vectorwiseop.cpp b/test/vectorwiseop.cpp
index b938e3957..904b51664 100644
--- a/test/vectorwiseop.cpp
+++ b/test/vectorwiseop.cpp
@@ -111,6 +111,8 @@ template<typename MatrixType> void vectorwiseop_matrix(const MatrixType& m)
   typedef typename NumTraits<Scalar>::Real RealScalar;
   typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> ColVectorType;
   typedef Matrix<Scalar, 1, MatrixType::ColsAtCompileTime> RowVectorType;
+  typedef Matrix<RealScalar, MatrixType::RowsAtCompileTime, 1> RealColVectorType;
+  typedef Matrix<RealScalar, 1, MatrixType::ColsAtCompileTime> RealRowVectorType;
 
   Index rows = m.rows();
   Index cols = m.cols();
@@ -123,6 +125,8 @@ template<typename MatrixType> void vectorwiseop_matrix(const MatrixType& m)
 
   ColVectorType colvec = ColVectorType::Random(rows);
   RowVectorType rowvec = RowVectorType::Random(cols);
+  RealColVectorType rcres;
+  RealRowVectorType rrres;
 
   // test addition
 
@@ -159,6 +163,26 @@ template<typename MatrixType> void vectorwiseop_matrix(const MatrixType& m)
 
   VERIFY_RAISES_ASSERT(m2.rowwise() -= rowvec.transpose());
   VERIFY_RAISES_ASSERT(m1.rowwise() - rowvec.transpose());
+  
+  // test norm
+  rrres = m1.colwise().norm();
+  VERIFY_IS_APPROX(rrres(c), m1.col(c).norm());
+  rcres = m1.rowwise().norm();
+  VERIFY_IS_APPROX(rcres(r), m1.row(r).norm());
+  
+  // test normalized
+  m2 = m1.colwise().normalized();
+  VERIFY_IS_APPROX(m2.col(c), m1.col(c).normalized());
+  m2 = m1.rowwise().normalized();
+  VERIFY_IS_APPROX(m2.row(r), m1.row(r).normalized());
+  
+  // test normalize
+  m2 = m1;
+  m2.colwise().normalize();
+  VERIFY_IS_APPROX(m2.col(c), m1.col(c).normalized());
+  m2 = m1;
+  m2.rowwise().normalize();
+  VERIFY_IS_APPROX(m2.row(r), m1.row(r).normalized());
 }
 
 void test_vectorwiseop()
-- 
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