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/*
* Copyright (c) 2009-2020, 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.ejml.dense.row.CommonOps_DDRM;
import org.ejml.dense.row.MatrixFeatures_DDRM;
import org.ejml.dense.row.RandomMatrices_DDRM;
import org.junit.jupiter.api.Test;
import java.util.Random;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
/**
* @author Peter Abeles
*/
public class TestDSubmatrixD1 {
Random rand = new Random(234234);
@Test
public void get() {
DMatrixRMaj A = RandomMatrices_DDRM.rectangle(5,10,-1,1,rand);
DSubmatrixD1 S = new DSubmatrixD1(A,2,4,1,10);
assertEquals(A.get(3,2),S.get(1,1), UtilEjml.TEST_F64);
}
@Test
public void set() {
DMatrixRMaj A = RandomMatrices_DDRM.rectangle(5,10,-1,1,rand);
DSubmatrixD1 S = new DSubmatrixD1(A,2,4,1,10);
S.set(1,1,5);
assertEquals(A.get(3,2),5,UtilEjml.TEST_F64);
}
@Test
public void extract() {
DMatrixRMaj A = RandomMatrices_DDRM.rectangle(5,10,-1,1,rand);
DSubmatrixD1 S = new DSubmatrixD1(A,2,4,1,10);
DMatrixRMaj M = S.extract();
DMatrixRMaj E = CommonOps_DDRM.extract(A,2,4,1,10);
assertTrue(MatrixFeatures_DDRM.isEquals(E,M));
}
}
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