| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.datasketches.vector.matrix; |
| |
| import static org.testng.Assert.assertEquals; |
| import static org.testng.Assert.fail; |
| |
| import org.ojalgo.matrix.store.PrimitiveDenseStore; |
| import org.testng.annotations.Test; |
| |
| import org.apache.datasketches.memory.Memory; |
| import org.apache.datasketches.memory.WritableMemory; |
| |
| public class MatrixImplOjAlgoTest { |
| @Test |
| public void checkInstantiation() { |
| final int nRows = 10; |
| final int nCols = 15; |
| final Matrix m = MatrixImplOjAlgo.newInstance(nRows, nCols); |
| assertEquals(m.getNumRows(), nRows); |
| assertEquals(m.getNumColumns(), nCols); |
| |
| final PrimitiveDenseStore pds = (PrimitiveDenseStore) m.getRawObject(); |
| assertEquals(pds.countRows(), nRows); |
| assertEquals(pds.countColumns(), nCols); |
| |
| final Matrix wrapped = Matrix.wrap(pds); |
| MatrixTest.checkMatrixEquality(wrapped, m); |
| assertEquals(wrapped.getRawObject(), pds); |
| } |
| |
| @Test |
| public void updateAndQueryValues() { |
| final int nRows = 5; |
| final int nCols = 5; |
| final Matrix m = generateIncreasingEye(nRows, nCols); // tests setElement() in method |
| |
| for (int i = 0; i < nRows; ++i) { |
| for (int j = 0; j < nCols; ++j) { |
| final double val = m.getElement(i, j); |
| if (i == j) { |
| assertEquals(val, i + 1.0); |
| } else { |
| assertEquals(val, 0.0); |
| } |
| } |
| } |
| } |
| |
| @Test |
| public void checkStandardSerialization() { |
| final int nRows = 3; |
| final int nCols = 7; |
| final Matrix m = generateIncreasingEye(nRows, nCols); |
| |
| final byte[] mtxBytes = m.toByteArray(); |
| assertEquals(mtxBytes.length, m.getSizeBytes()); |
| |
| final Memory mem = Memory.wrap(mtxBytes); |
| final Matrix tgt = MatrixImplOjAlgo.heapifyInstance(mem); |
| MatrixTest.checkMatrixEquality(tgt, m); |
| } |
| |
| @Test |
| public void checkCompactSerialization() { |
| final int nRows = 4; |
| final int nCols = 7; |
| final Matrix m = generateIncreasingEye(nRows, nCols); |
| |
| byte[] mtxBytes = m.toCompactByteArray(nRows - 1, 7); |
| assertEquals(mtxBytes.length, m.getCompactSizeBytes(nRows - 1, 7)); |
| |
| Memory mem = Memory.wrap(mtxBytes); |
| Matrix tgt = MatrixImplOjAlgo.heapifyInstance(mem); |
| for (int c = 0; c < nCols; ++c) { |
| for (int r = 0; r < (nRows - 1); ++r) { |
| assertEquals(tgt.getElement(r, c), m.getElement(r, c)); // equal here |
| } |
| // assuming nRows - 1 so check only the last row as being 0 |
| assertEquals(tgt.getElement(nRows - 1, c), 0.0); |
| } |
| |
| // test without compacting |
| mtxBytes = m.toCompactByteArray(nRows, nCols); |
| assertEquals(mtxBytes.length, m.getSizeBytes()); |
| mem = Memory.wrap(mtxBytes); |
| tgt = MatrixImplOjAlgo.heapifyInstance(mem); |
| MatrixTest.checkMatrixEquality(tgt, m); |
| } |
| |
| @Test |
| public void matrixRowOperations() { |
| final int nRows = 7; |
| final int nCols = 5; |
| final Matrix m = generateIncreasingEye(nRows, nCols); |
| |
| final int tgtCol = 2; |
| final double[] v = m.getRow(tgtCol); // diagonal matrix, so this works ok |
| for (int i = 0; i < v.length; ++i) { |
| assertEquals(v[i], (i == tgtCol ? i + 1.0 : 0.0)); |
| } |
| |
| assertEquals(m.getElement(6, tgtCol), 0.0); |
| m.setRow(6, v); |
| assertEquals(m.getElement(6, tgtCol), tgtCol + 1.0); |
| } |
| |
| @Test |
| public void matrixColumnOperations() { |
| final int nRows = 9; |
| final int nCols = 4; |
| final Matrix m = generateIncreasingEye(nRows, nCols); |
| |
| final int tgtRow = 3; |
| final double[] v = m.getColumn(tgtRow); // diagonal matrix, so this works ok |
| for (int i = 0; i < v.length; ++i) { |
| assertEquals(v[i], (i == tgtRow ? i + 1.0 : 0.0)); |
| } |
| |
| assertEquals(m.getElement(tgtRow, 0), 0.0); |
| m.setColumn(0, v); |
| assertEquals(m.getElement(tgtRow, 0), tgtRow + 1.0); |
| } |
| |
| @Test |
| public void invalidRowColumnOperations() { |
| final int nRows = 9; |
| final int nCols = 4; |
| final Matrix m = generateIncreasingEye(nRows, nCols); |
| |
| final double[] shortRow = new double[nCols - 2]; |
| try { |
| m.setRow(1, shortRow); |
| fail(); |
| } catch (final IllegalArgumentException e) { |
| // expected |
| } |
| |
| final double[] longColumn = new double[nRows + 2]; |
| try { |
| m.setColumn(1, longColumn); |
| fail(); |
| } catch (final IllegalArgumentException e) { |
| // expected |
| } |
| } |
| |
| @Test |
| public void invalidSerVer() { |
| final int nRows = 3; |
| final int nCols = 3; |
| final Matrix m = generateIncreasingEye(nRows, nCols); |
| final byte[] sketchBytes = m.toByteArray(); |
| final WritableMemory mem = WritableMemory.wrap(sketchBytes); |
| MatrixPreambleUtil.insertSerVer(mem.getArray(), mem.getCumulativeOffset(0L), 0); |
| |
| try { |
| MatrixImplOjAlgo.heapifyInstance(mem); |
| fail(); |
| } catch (final IllegalArgumentException e) { |
| // expected |
| } |
| } |
| |
| @Test |
| public void invalidFamily() { |
| final int nRows = 3; |
| final int nCols = 3; |
| final Matrix m = generateIncreasingEye(nRows, nCols); |
| final byte[] sketchBytes = m.toByteArray(); |
| final WritableMemory mem = WritableMemory.wrap(sketchBytes); |
| MatrixPreambleUtil.insertFamilyID(mem.getArray(), mem.getCumulativeOffset(0L), 0); |
| |
| try { |
| MatrixImplOjAlgo.heapifyInstance(mem); |
| fail(); |
| } catch (final IllegalArgumentException e) { |
| // expected |
| } |
| } |
| |
| @Test |
| public void insufficientMemoryCapacity() { |
| final byte[] bytes = new byte[6]; |
| final Memory mem = Memory.wrap(bytes); |
| try { |
| MatrixImplOjAlgo.heapifyInstance(mem); |
| fail(); |
| } catch (final IllegalArgumentException e) { |
| // expected |
| } |
| } |
| |
| /** |
| * Creates a scaled I matrix, where the diagonal consists of increasing integers, |
| * starting with 1.0. |
| * @param nRows number of rows |
| * @param nCols number of columns |
| * @return PrimitiveDenseStore, suitable for direct use or wrapping |
| */ |
| private static Matrix generateIncreasingEye(final int nRows, final int nCols) { |
| final Matrix m = MatrixImplOjAlgo.newInstance(nRows, nCols); |
| for (int i = 0; (i < nRows) && (i < nCols); ++i) { |
| m.setElement(i, i, 1.0 + i); |
| } |
| return m; |
| } |
| } |