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/*
* Copyright (c) 2009-2018, Peter Abeles. All Rights Reserved.
*
* This file is part of Efficient Java Matrix Library (EJML).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.ejml.data;
import org.ejml.UtilEjml;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* @author Peter Abeles
*/
public class TestDMatrixSparseTriplet extends GenericTestsDMatrixSparse {
@Test
public void constructor() {
DMatrixSparseTriplet m = new DMatrixSparseTriplet(1,1,10);
assertEquals(0,m.getLength());
assertEquals(10,m.nz_value.data.length);
assertEquals(20,m.nz_rowcol.data.length);
}
@Test
public void addItem() {
DMatrixSparseTriplet m = new DMatrixSparseTriplet(1,1,2);
m.addItem(1,2,3);
m.addItem(1,3,4);
assertEquals(2,m.nz_length);
assertTrue(2 <= m.nz_value.data.length);
assertTrue(4 <= m.nz_rowcol.data.length);
check(m,0,1,2,3);
check(m,1,1,3,4);
// now force it to grow
m.addItem(2,3,5);
assertEquals(3,m.nz_length);
assertTrue(m.nz_value.data.length >= 3);
check(m,0,1,2,3);
check(m,1,1,3,4);
check(m,2,2,3,5);
}
private void check(DMatrixSparseTriplet m , int index , int row , int col , double value ) {
assertEquals(row,m.nz_rowcol.data[index*2]);
assertEquals(col,m.nz_rowcol.data[index*2+1]);
assertEquals(value,m.nz_value.data[index], UtilEjml.TEST_F64);
}
@Test
public void findItem() {
DMatrixSparseTriplet m = new DMatrixSparseTriplet(3,4, 5);
m.addItem(1,2, 5);
assertEquals(-1, m.nz_index(0, 1));
check( m, m.nz_index(1,2), 1,2,5);
}
@Override
public DMatrixSparse createSparse(int numRows, int numCols) {
return new DMatrixSparseTriplet(numRows,numCols,10);
}
@Override
public DMatrixSparse createSparse(DMatrixSparseTriplet orig) {
return new DMatrixSparseTriplet(orig);
}
@Override
public boolean isStructureValid(DMatrixSparse m) {
return true;
}
}
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