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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.sparse.triplet;
import org.ejml.UtilEjml;
import org.ejml.data.DMatrixSparseTriplet;
import org.junit.Test;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* @author Peter Abeles
*/
public class TestMatrixFeatures_DSTL {
@Test
public void isEquals() {
DMatrixSparseTriplet a = new DMatrixSparseTriplet(4,5,3);
a.addItem(3,1,2.5);
a.addItem(2,4,2.7);
a.addItem(2,2,1.5);
DMatrixSparseTriplet b = new DMatrixSparseTriplet(a);
assertTrue(MatrixFeatures_DSTL.isEquals(a,b));
b.numRows += 1;
assertFalse(MatrixFeatures_DSTL.isEquals(a,b));
b.numRows -= 1; b.numCols += 1;
assertFalse(MatrixFeatures_DSTL.isEquals(a,b));
// make it no longer exactly equal
b.numCols -= 1;
b.nz_value.data[0] += UtilEjml.TEST_F64*0.1;
assertFalse(MatrixFeatures_DSTL.isEquals(a,b));
}
@Test
public void isEquals_tol() {
DMatrixSparseTriplet a = new DMatrixSparseTriplet(4,5,3);
a.addItem(3,1,2.5);
a.addItem(2,4,2.7);
a.addItem(2,2,1.5);
DMatrixSparseTriplet b = new DMatrixSparseTriplet(a);
assertTrue(MatrixFeatures_DSTL.isEquals(a,b, UtilEjml.TEST_F64));
b.numRows += 1;
assertFalse(MatrixFeatures_DSTL.isEquals(a,b, UtilEjml.TEST_F64));
b.numRows -= 1; b.numCols += 1;
assertFalse(MatrixFeatures_DSTL.isEquals(a,b, UtilEjml.TEST_F64));
// make it no longer exactly equal, but within tolerance
b.numCols -= 1;
b.nz_value.data[0] += UtilEjml.TEST_F64*0.1;
assertTrue(MatrixFeatures_DSTL.isEquals(a,b, UtilEjml.TEST_F64));
// outside of tolerance
b.nz_value.data[0] += UtilEjml.TEST_F64*10;
assertFalse(MatrixFeatures_DSTL.isEquals(a,b, UtilEjml.TEST_F64));
}
}
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