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/*
* Copyright (c) 2009-2017, 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.ops;
import org.ejml.UtilEjml;
import org.ejml.data.DMatrixSparseTriplet;
import org.ejml.data.ZMatrixRMaj;
import org.ejml.dense.row.MatrixFeatures_ZDRM;
import org.ejml.sparse.triplet.MatrixFeatures_DSTL;
import org.junit.Test;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
/**
* @author Peter Abeles
*/
public class TestReadMatrixCsv {
/**
* Make sure incorrectly formatted data is handled gracefully
*/
@Test(expected=IOException.class)
public void bad_matrix_row() throws IOException {
String s = "3 2 real\n0 0\n1 1";
ReadMatrixCsv alg = new ReadMatrixCsv(new ByteArrayInputStream(s.getBytes()));
alg.read64();
fail("Should have had an exception");
}
@Test(expected=IOException.class)
public void bad_matrix_col() throws IOException {
String s = "3 2 real\n0 0\n1\n0 3";
ReadMatrixCsv alg = new ReadMatrixCsv(new ByteArrayInputStream(s.getBytes()));
alg.read64();
fail("Should have had an exception");
}
public void dense_complex() throws IOException {
String s = "3 2 complex\n0 2 0 -1\n1 2 -1 -1\n0 2 3 10";
ReadMatrixCsv alg = new ReadMatrixCsv(new ByteArrayInputStream(s.getBytes()));
ZMatrixRMaj expected = new ZMatrixRMaj(3,2,true,0,2,0,-1,1,2,-1,-1,0,2,3,10);
ZMatrixRMaj m = alg.read64();
assertTrue(MatrixFeatures_ZDRM.isIdentical(expected,m, UtilEjml.TEST_F64));
}
public void real_sparse() throws IOException {
String s = "3 2 3 real\n0 2 0.1\n0 0 -0.1\n2 1 12";
ReadMatrixCsv alg = new ReadMatrixCsv(new ByteArrayInputStream(s.getBytes()));
DMatrixSparseTriplet expected = new DMatrixSparseTriplet(3,2,3);
expected.addItem(0,2,0.1);
expected.addItem(0,0,-0.1);
expected.addItem(2,1,12);
DMatrixSparseTriplet m = alg.read64();
assertTrue(MatrixFeatures_DSTL.isEquals(expected,m, UtilEjml.TEST_F64));
}
}
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