| /* |
| * 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.quantiles; |
| |
| import static org.testng.Assert.fail; |
| |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| import org.apache.datasketches.memory.Memory; |
| import org.apache.datasketches.SketchesArgumentException; |
| import org.apache.datasketches.SketchesReadOnlyException; |
| |
| @SuppressWarnings("javadoc") |
| public class ReadOnlyMemoryTest { |
| |
| @Test |
| public void wrapAndTryUpdatingSparseSketch() { |
| UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| s1.update(1); |
| s1.update(2); |
| final byte[] bytes = s1.toByteArray(false); |
| Assert.assertEquals(bytes.length, 64); // 32 + MIN_K(=2) * 2 * 8 = 64 |
| //final Memory mem = Memory.wrap(ByteBuffer.wrap(bytes) |
| // .asReadOnlyBuffer().order(ByteOrder.nativeOrder())); |
| final Memory mem = Memory.wrap(bytes); |
| final UpdateDoublesSketch s2 = (UpdateDoublesSketch) DoublesSketch.wrap(mem); |
| Assert.assertEquals(s2.getMinValue(), 1.0); |
| Assert.assertEquals(s2.getMaxValue(), 2.0); |
| |
| try { |
| s2.update(3); |
| fail(); |
| } catch (final SketchesReadOnlyException e) { |
| // expected |
| } |
| } |
| |
| @Test |
| public void wrapCompactSketch() { |
| UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| s1.update(1); |
| s1.update(2); |
| //Memory mem = Memory.wrap(ByteBuffer.wrap(s1.compact().toByteArray()) |
| // .asReadOnlyBuffer().order(ByteOrder.nativeOrder()));); |
| final Memory mem = Memory.wrap(s1.compact().toByteArray()); |
| final DoublesSketch s2 = DoublesSketch.wrap(mem); // compact, so this is ok |
| Assert.assertEquals(s2.getMinValue(), 1.0); |
| Assert.assertEquals(s2.getMaxValue(), 2.0); |
| Assert.assertEquals(s2.getN(), 2); |
| } |
| |
| @Test |
| public void heapifySparseSketch() { |
| UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| s1.update(1); |
| s1.update(2); |
| Memory mem = Memory.wrap(s1.toByteArray(false)); |
| DoublesSketch s2 = DoublesSketch.heapify(mem); |
| Assert.assertEquals(s2.getMinValue(), 1.0); |
| Assert.assertEquals(s2.getMaxValue(), 2.0); |
| } |
| |
| @Test |
| public void heapifyAndUpdateSparseSketch() { |
| UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| s1.update(1); |
| s1.update(2); |
| Memory mem = Memory.wrap(s1.toByteArray(false)); |
| UpdateDoublesSketch s2 = (UpdateDoublesSketch) DoublesSketch.heapify(mem); |
| s2.update(3); |
| Assert.assertEquals(s2.getMinValue(), 1.0); |
| Assert.assertEquals(s2.getMaxValue(), 3.0); |
| } |
| |
| @Test |
| public void heapifyCompactSketch() { |
| UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| s1.update(1); |
| s1.update(2); |
| Memory mem = Memory.wrap(s1.toByteArray(true)); |
| DoublesSketch s2 = DoublesSketch.heapify(mem); |
| Assert.assertEquals(s2.getMinValue(), 1.0); |
| Assert.assertEquals(s2.getMaxValue(), 2.0); |
| } |
| |
| @Test |
| public void heapifyEmptyUpdateSketch() { |
| final UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| final Memory mem = Memory.wrap(s1.toByteArray()); |
| DoublesSketch s2 = DoublesSketch.heapify(mem); |
| Assert.assertTrue(s2.isEmpty()); |
| } |
| |
| @Test |
| public void heapifyEmptyCompactSketch() { |
| final CompactDoublesSketch s1 = DoublesSketch.builder().build().compact(); |
| final Memory mem = Memory.wrap(s1.toByteArray()); |
| DoublesSketch s2 = DoublesSketch.heapify(mem); |
| Assert.assertTrue(s2.isEmpty()); |
| } |
| |
| @Test |
| public void wrapEmptyUpdateSketch() { |
| final UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| final Memory mem = Memory.wrap(s1.toByteArray()); |
| UpdateDoublesSketch s2 = (UpdateDoublesSketch) DoublesSketch.wrap(mem); |
| Assert.assertTrue(s2.isEmpty()); |
| |
| // ensure the various put calls fail |
| try { |
| s2.putMinValue(-1.0); |
| fail(); |
| } catch (final SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| s2.putMaxValue(1.0); |
| fail(); |
| } catch (final SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| s2.putN(1); |
| fail(); |
| } catch (final SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| s2.putBitPattern(1); |
| fail(); |
| } catch (final SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| s2.reset(); |
| fail(); |
| } catch (final SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| s2.putBaseBufferCount(5); |
| fail(); |
| } catch (final SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| s2.putCombinedBuffer(new double[16]); |
| fail(); |
| } catch (final SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| final int currCap = s2.getCombinedBufferItemCapacity(); |
| s2.growCombinedBuffer(currCap, 2 * currCap); |
| fail(); |
| } catch (final SketchesReadOnlyException e) { |
| // expected |
| } |
| } |
| |
| @Test |
| public void wrapEmptyCompactSketch() { |
| final UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| final Memory mem = Memory.wrap(s1.compact().toByteArray()); |
| DoublesSketch s2 = DoublesSketch.wrap(mem); // compact, so this is ok |
| Assert.assertTrue(s2.isEmpty()); |
| } |
| |
| @Test |
| public void heapifyUnionFromSparse() { |
| UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| s1.update(1); |
| s1.update(2); |
| Memory mem = Memory.wrap(s1.toByteArray(false)); |
| DoublesUnion u = DoublesUnion.heapify(mem); |
| u.update(3); |
| DoublesSketch s2 = u.getResult(); |
| Assert.assertEquals(s2.getMinValue(), 1.0); |
| Assert.assertEquals(s2.getMaxValue(), 3.0); |
| } |
| |
| @Test |
| public void heapifyUnionFromCompact() { |
| UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| s1.update(1); |
| s1.update(2); |
| Memory mem = Memory.wrap(s1.toByteArray(true)); |
| DoublesUnion u = DoublesUnion.heapify(mem); |
| u.update(3); |
| DoublesSketch s2 = u.getResult(); |
| Assert.assertEquals(s2.getMinValue(), 1.0); |
| Assert.assertEquals(s2.getMaxValue(), 3.0); |
| } |
| |
| @Test |
| public void wrapUnionFromSparse() { |
| UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| s1.update(1); |
| s1.update(2); |
| Memory mem = Memory.wrap(s1.toByteArray(false)); |
| DoublesUnion u = DoublesUnion.wrap(mem); |
| DoublesSketch s2 = u.getResult(); |
| Assert.assertEquals(s2.getMinValue(), 1.0); |
| Assert.assertEquals(s2.getMaxValue(), 2.0); |
| |
| // ensure update and reset methods fail |
| try { |
| u.update(3); |
| fail(); |
| } catch (SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| u.update(s2); |
| fail(); |
| } catch (SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| u.update(mem); |
| fail(); |
| } catch (SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| u.reset(); |
| fail(); |
| } catch (SketchesReadOnlyException e) { |
| // expected |
| } |
| |
| try { |
| u.getResultAndReset(); |
| fail(); |
| } catch (SketchesReadOnlyException e) { |
| // expected |
| } |
| } |
| |
| @Test(expectedExceptions = SketchesArgumentException.class) |
| public void wrapUnionFromCompact() { |
| UpdateDoublesSketch s1 = DoublesSketch.builder().build(); |
| s1.update(1); |
| s1.update(2); |
| Memory mem = Memory.wrap(s1.toByteArray(true)); |
| DoublesUnion.wrap(mem); |
| fail(); |
| } |
| |
| } |