Expand and improve unit-tests

test/CMakeLists.txt

@@ -8,6 +8,7 @@ SET(test_SRCS
   main.cpp
   basicstuff.cpp
   adjoint.cpp
+  submatrices.cpp
 )
 QT4_AUTOMOC(${test_SRCS})
 

test/adjoint.cpp

@@ -91,7 +91,7 @@ template<typename MatrixType> void adjoint(const MatrixType& m)
 
 void EigenTest::testAdjoint()
 {
-  REPEAT {
+  for(int i = 0; i < m_repeat; i++) {
     adjoint(Matrix<float, 1, 1>());
     adjoint(Matrix4d());
     adjoint(MatrixXcf(3, 3));

test/basicstuff.cpp

@@ -138,7 +138,7 @@ template<typename MatrixType> void basicStuff(const MatrixType& m)
 
 void EigenTest::testBasicStuff()
 {
-  REPEAT {
+  for(int i = 0; i < m_repeat; i++) {
     basicStuff(Matrix<float, 1, 1>());
     basicStuff(Matrix4d());
     basicStuff(MatrixXcf(3, 3));

test/main.h

@@ -35,7 +35,6 @@
 #include <ctime>
 
 #define DEFAULT_REPEAT 50
-#define REPEAT for(int repeat_iteration = 0; repeat_iteration < m_repeat; repeat_iteration++)
 
 #define VERIFY(a) QVERIFY(a)
 #define VERIFY_IS_APPROX(a, b) QVERIFY(test_isApprox(a, b))
@@ -116,6 +115,7 @@ class EigenTest : public QObject
   private slots:
     void testBasicStuff();
     void testAdjoint();
+    void testSubmatrices();
  
   protected:
     int m_repeat;

test/submatrices.cpp

@@ -0,0 +1,120 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra. Eigen itself is part of the KDE project.
+//
+// Copyright (C) 2006-2007 Benoit Jacob <jacob@math.jussieu.fr>
+//
+// Eigen is free software; 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 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 General Public License for more
+// details.
+//
+// You should have received a copy of the GNU General Public License along
+// with Eigen; if not, write to the Free Software Foundation, Inc., 51
+// Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. This exception does not invalidate any other reasons why a work
+// based on this file might be covered by the GNU General Public License.
+
+#include "main.h"
+
+namespace Eigen {
+
+template<typename MatrixType> void submatrices(const MatrixType& m)
+{
+  /* this test covers the following files:
+     Transpose.h Conjugate.h Dot.h
+  */
+
+  typedef typename MatrixType::Scalar Scalar;
+  typedef Matrix<Scalar, MatrixType::RowsAtCompileTime, 1> VectorType;
+  typedef Matrix<Scalar, 1, MatrixType::ColsAtCompileTime> RowVectorType;
+  int rows = m.rows();
+  int cols = m.cols();
+  
+  MatrixType m1 = MatrixType::random(rows, cols),
+             m2 = MatrixType::random(rows, cols),
+             m3(rows, cols),
+             mzero = MatrixType::zero(rows, cols),
+             identity = Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime>
+                              ::identity(rows),
+             square = Matrix<Scalar, MatrixType::RowsAtCompileTime, MatrixType::RowsAtCompileTime>
+                              ::random(rows, rows);
+  VectorType v1 = VectorType::random(rows),
+             v2 = VectorType::random(rows),
+             v3 = VectorType::random(rows),
+             vzero = VectorType::zero(rows);
+
+  Scalar s1 = random<Scalar>();
+  
+  /* this test covers the following files:
+     Row.h Column.h Block.h DynBlock.h Minor.h
+  */
+  
+  int r1 = random<int>(0,rows-1);
+  int r2 = random<int>(r1,rows-1);
+  int c1 = random<int>(0,cols-1);
+  int c2 = random<int>(c1,cols-1);
+  
+  //check row() and col()
+  VERIFY_IS_APPROX(m1.col(c1).transpose(), m1.transpose().row(c1));
+  VERIFY_IS_APPROX(square.row(r1).dot(m1.col(c1)), square.lazyProduct(m1.conjugate())(r1,c1));
+  //check operator(), both constant and non-constant, on row() and col()
+  m1.row(r1) += s1 * m1.row(r2);
+  m1.col(c1) += s1 * m1.col(c2);
+  
+  //check dynBlock()
+  Matrix<Scalar,Dynamic,Dynamic> b1(1,1); b1(0,0) = m1(r1,c1);
+  RowVectorType br1(m1.dynBlock(r1,0,1,cols));
+  VectorType bc1(m1.dynBlock(0,c1,rows,1));
+  VERIFY_IS_APPROX(b1, m1.dynBlock(r1,c1,1,1));
+  VERIFY_IS_APPROX(m1.row(r1), br1);
+  VERIFY_IS_APPROX(m1.col(c1), bc1);
+  //check operator(), both constant and non-constant, on dynBlock()
+  m1.dynBlock(r1,c1,r2-r1+1,c2-c1+1) = s1 * m2.dynBlock(0, 0, r2-r1+1,c2-c1+1);
+  m1.dynBlock(r1,c1,r2-r1+1,c2-c1+1)(r2-r1,c2-c1) = m2.dynBlock(0, 0, r2-r1+1,c2-c1+1)(0,0);
+  
+  //check minor()
+  if(rows > 1 && cols > 1)
+  {
+    Matrix<Scalar, Dynamic, Dynamic> mi = m1.minor(0,0).eval();
+    VERIFY_IS_APPROX(mi, m1.dynBlock(1,1,rows-1,cols-1));
+    mi = m1.minor(r1,c1);
+    VERIFY_IS_APPROX(mi.transpose(), m1.transpose().minor(c1,r1));
+    //check operator(), both constant and non-constant, on minor()
+    m1.minor(r1,c1)(0,0) = m1.minor(0,0)(0,0);
+  }
+}
+
+void EigenTest::testSubmatrices()
+{
+  for(int i = 0; i < m_repeat; i++) {
+    submatrices(Matrix<float, 1, 1>());
+    submatrices(Matrix4d());
+    submatrices(MatrixXcf(3, 3));
+    submatrices(MatrixXi(8, 12));
+    submatrices(MatrixXcd(20, 20));
+    
+    // test block() separately as it is a template method so doesn't support
+    // being called as a member of a class that is itself a template parameter
+    // (at least as of g++ 4.2)
+    Matrix<float, 6, 8> m = Matrix<float, 6, 8>::random();
+    float s = random<float>();
+    // test block() as lvalue
+    m.block<2,5>(1,1) *= s;
+    // test operator() on block() both as constant and non-constant
+    m.block<2,5>(1,1)(0, 3) = m.block<2,5>(1,1)(1,2);
+    // check that block() and dynBlock() agree
+    MatrixXf b = m.block<3,2>(3,3);
+    VERIFY_IS_APPROX(b, m.dynBlock(3,3,3,2));
+  }
+}
+
+} // namespace Eigen