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/*
* Copyright (c) 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.ops.DConvertMatrixStruct;
import org.ejml.sparse.csc.CommonOps_DSCC;
import org.ejml.sparse.csc.RandomMatrices_DSCC;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author Peter Abeles
*/
public class TestDMatrixSparseCSC extends GenericTestsDMatrixSparse {
@Override
public DMatrixSparse createSparse( int numRows, int numCols ) {
return new DMatrixSparseCSC(numRows, numCols, 10);
}
@Override
public DMatrixSparse createSparse( DMatrixSparseTriplet orig ) {
return DConvertMatrixStruct.convert(orig, (DMatrixSparseCSC)null);
}
@Override
public boolean isStructureValid( DMatrixSparse m ) {
return CommonOps_DSCC.checkStructure((DMatrixSparseCSC)m);
}
@Test
void constructor_veryLarge() {
DMatrixSparseCSC a = new DMatrixSparseCSC(1_000_000_000, 100_000_000, 4);
assertEquals(0, a.nz_length);
assertEquals(1_000_000_000, a.numRows);
assertEquals(100_000_000, a.numCols);
assertEquals(4, a.nz_values.length);
assertEquals(4, a.nz_rows.length);
}
@Test
void growMaxLength_veryLarge() {
DMatrixSparseCSC a = new DMatrixSparseCSC(1_000_000_000, 100_000_000, 4);
a.growMaxLength(10, false);
assertEquals(0, a.nz_length);
assertEquals(1_000_000_000, a.numRows);
assertEquals(100_000_000, a.numCols);
assertEquals(10, a.nz_values.length);
assertEquals(10, a.nz_rows.length);
}
@Test
void reshape_row_col_length() {
DMatrixSparseCSC a = new DMatrixSparseCSC(2, 3, 4);
a.reshape(1, 2, 3);
assertTrue(CommonOps_DSCC.checkStructure(a));
assertEquals(1, a.numRows);
assertEquals(2, a.numCols);
assertEquals(4, a.nz_values.length);
assertEquals(0, a.nz_length);
a.reshape(4, 1, 10);
assertTrue(CommonOps_DSCC.checkStructure(a));
assertEquals(4, a.numRows);
assertEquals(1, a.numCols);
assertEquals(10, a.nz_values.length);
assertEquals(0, a.nz_length);
}
@Test
void sortIndices() {
DMatrixSparseCSC a = RandomMatrices_DSCC.rectangle(5, 4, 20, -1, 1, rand);
// make sure it's not sorted correctly
a.nz_rows[0] = 2;
a.nz_rows[2] = 0;
assertFalse(CommonOps_DSCC.checkIndicesSorted(a));
a.indicesSorted = false;
// now sort it and see if its fixed
a.sortIndices(null);
assertTrue(CommonOps_DSCC.checkIndicesSorted(a));
assertTrue(a.indicesSorted);
}
@Test
void growMaxColumns() {
DMatrixSparseCSC a = RandomMatrices_DSCC.rectangle(5, 4, 20, -1, 1, rand);
a.col_idx[0] = 5;
a.col_idx[1] = 15;
// grow when resize isn't needed
a.growMaxColumns(3, false);
assertEquals(5, a.col_idx[0]);
assertEquals(15, a.col_idx[1]);
// shouldn't declare a new array
a.growMaxColumns(4, false);
assertEquals(5, a.col_idx[0]);
assertEquals(15, a.col_idx[1]);
// resize is needed now
a.growMaxColumns(5, true);
assertEquals(5, a.col_idx[0]);
assertEquals(15, a.col_idx[1]);
a.growMaxColumns(6, false);
assertEquals(0, a.col_idx[0]);
assertEquals(0, a.col_idx[1]);
}
/**
* The matrix is already sorted. See if it is still sorted after set has been called.
*/
@Test
void set_sorted() {
DMatrixSparseCSC a = new DMatrixSparseCSC(4, 5, 0);
a.indicesSorted = true;
a.set(1, 2, 1);
assertTrue(a.indicesSorted);
assertTrue(CommonOps_DSCC.checkStructure(a));
a.set(0, 2, 1);
assertTrue(a.indicesSorted);
assertTrue(CommonOps_DSCC.checkStructure(a));
a.set(3, 2, 1);
assertTrue(a.indicesSorted);
assertTrue(CommonOps_DSCC.checkStructure(a));
a.set(2, 2, 1);
assertTrue(a.indicesSorted);
assertTrue(CommonOps_DSCC.checkStructure(a));
}
}
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