/*
* Copyright (c) 2009-2012, Peter Abeles. All Rights Reserved.
*
* This file is part of Efficient Java Matrix Library (EJML).
*
* EJML 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.
*
* EJML 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with EJML. If not, see <http://www.gnu.org/licenses/>.
*/
package org.ejml.alg.dense.misc;
import org.ejml.data.DenseMatrix64F;
import org.ejml.ops.EjmlUnitTests;
import org.ejml.ops.RandomMatrices;
import org.junit.Test;
import java.util.Random;
import static org.junit.Assert.assertEquals;
/**
* @author Peter Abeles
*/
public class TestTransposeAlgs {
Random rand = new Random(234234);
@Test
public void square() {
DenseMatrix64F mat = RandomMatrices.createRandom(5,5,rand);
DenseMatrix64F matTran = mat.copy();
TransposeAlgs.square(matTran);
assertEquals(mat.getNumCols(),matTran.getNumRows());
assertEquals(mat.getNumRows(),matTran.getNumCols());
EjmlUnitTests.assertEqualsTrans(mat,matTran,0);
}
@Test
public void block() {
// check various shapes to make sure blocking is handled correctly
for( int numRows = 1; numRows < 15; numRows += 2 ) {
for( int numCols = 1; numCols < 15; numCols += 2) {
DenseMatrix64F mat = RandomMatrices.createRandom(numRows,numCols,rand);
DenseMatrix64F matTran = new DenseMatrix64F(numCols,numRows);
TransposeAlgs.block(mat,matTran,7);
assertEquals(numCols,matTran.getNumRows());
assertEquals(numRows,matTran.getNumCols());
EjmlUnitTests.assertEqualsTrans(mat,matTran,0);
}
}
}
@Test
public void standard() {
DenseMatrix64F mat = RandomMatrices.createRandom(5,7,rand);
DenseMatrix64F matTran = new DenseMatrix64F(7,5);
TransposeAlgs.standard(mat,matTran);
assertEquals(mat.getNumCols(),matTran.getNumRows());
assertEquals(mat.getNumRows(),matTran.getNumCols());
EjmlUnitTests.assertEqualsTrans(mat,matTran,0);
}
}