From 559233c73e86474d67f5730f9b20e46ccea93b7f Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 27 May 2008 09:16:27 +0000
Subject: * fix the QR module to use extract/part instead of the previous
 triangular stuff * added qr and eigensolver tests * fix a compilation warning
 in Matrix copy constructor

---
 test/qr.cpp | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 test/qr.cpp

(limited to 'test/qr.cpp')

diff --git a/test/qr.cpp b/test/qr.cpp
new file mode 100644
index 000000000..8facbac96
--- /dev/null
+++ b/test/qr.cpp
@@ -0,0 +1,55 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra. Eigen itself is part of the KDE project.
+//
+// Copyright (C) 2008 Gael Guennebaud <g.gael@free.fr>
+//
+// Eigen is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 3 of the License, or (at your option) any later version.
+//
+// Alternatively, you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of
+// the License, or (at your option) any later version.
+//
+// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License and a copy of the GNU General Public License along with
+// Eigen. If not, see <http://www.gnu.org/licenses/>.
+
+#include "main.h"
+#include <Eigen/QR>
+
+template<typename MatrixType> void qr(const MatrixType& m)
+{
+  /* this test covers the following files:
+     QR.h
+  */
+  int rows = m.rows();
+  int cols = m.cols();
+
+  typedef typename MatrixType::Scalar Scalar;
+  typedef Matrix<Scalar, MatrixType::ColsAtCompileTime, MatrixType::ColsAtCompileTime> SquareMatrixType;
+  typedef Matrix<Scalar, MatrixType::ColsAtCompileTime, 1> VectorType;
+
+  MatrixType a = MatrixType::random(rows,cols);
+  QR<MatrixType> qrOfA(a);
+
+  VERIFY_IS_APPROX(a, qrOfA.matrixQ() * qrOfA.matrixR());
+  VERIFY_IS_NOT_APPROX(a+MatrixType::identity(rows, cols), qrOfA.matrixQ() * qrOfA.matrixR());
+}
+
+void test_qr()
+{
+  for(int i = 0; i < 1; i++) {
+    CALL_SUBTEST( qr(Matrix2f()) );
+    CALL_SUBTEST( qr(Matrix3d()) );
+    CALL_SUBTEST( qr(MatrixXf(12,8)) );
+//     CALL_SUBTEST( qr(MatrixXcd(17,7)) ); // complex numbers are not supported yet
+  }
+}
-- 
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