| /* |
| * 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.pig.quantiles; |
| |
| import org.apache.datasketches.quantiles.DoublesSketch; |
| import org.apache.datasketches.quantiles.UpdateDoublesSketch; |
| |
| import java.util.Arrays; |
| |
| import org.apache.pig.EvalFunc; |
| import org.apache.pig.data.DataByteArray; |
| import org.apache.pig.data.Tuple; |
| import org.apache.pig.data.TupleFactory; |
| |
| import org.testng.annotations.Test; |
| import org.testng.Assert; |
| |
| @SuppressWarnings("javadoc") |
| public class GetPmfFromDoublesSketchTest { |
| private static final TupleFactory tupleFactory = TupleFactory.getInstance(); |
| |
| @Test |
| public void emptySketch() throws Exception { |
| EvalFunc<Tuple> func = new GetPmfFromDoublesSketch(); |
| DoublesSketch sketch = DoublesSketch.builder().build(); |
| Tuple resultTuple = func.exec(tupleFactory.newTuple(Arrays.asList(new DataByteArray(sketch.toByteArray()), 0.5))); |
| Assert.assertNull(resultTuple); |
| } |
| |
| @Test |
| public void normalCase() throws Exception { |
| EvalFunc<Tuple> func = new GetPmfFromDoublesSketch(); |
| UpdateDoublesSketch sketch = DoublesSketch.builder().build(); |
| for (int i = 1; i <= 10; i++) { |
| sketch.update(i); |
| } |
| Tuple resultTuple = func.exec(tupleFactory.newTuple(Arrays.asList(new DataByteArray(sketch.toByteArray()), 2.0, 7.0))); |
| Assert.assertNotNull(resultTuple); |
| Assert.assertEquals(resultTuple.size(), 3); |
| Assert.assertEquals(((double) resultTuple.get(0)), 0.1); |
| Assert.assertEquals(((double) resultTuple.get(1)), 0.5); |
| Assert.assertEquals(((double) resultTuple.get(2)), 0.4); |
| } |
| |
| @Test(expectedExceptions = IllegalArgumentException.class) |
| public void wrongNumberOfInputs() throws Exception { |
| EvalFunc<Tuple> func = new GetPmfFromDoublesSketch(); |
| func.exec(tupleFactory.newTuple(1)); |
| } |
| |
| @Test(expectedExceptions = IllegalArgumentException.class) |
| public void wrongTypeForSketch() throws Exception { |
| EvalFunc<Tuple> func = new GetPmfFromDoublesSketch(); |
| func.exec(tupleFactory.newTuple(Arrays.asList(1.0, 1.0))); |
| } |
| |
| @Test(expectedExceptions = IllegalArgumentException.class) |
| public void wrongTypeOfSplitPoint() throws Exception { |
| EvalFunc<Tuple> func = new GetPmfFromDoublesSketch(); |
| DoublesSketch sketch = DoublesSketch.builder().build(); |
| func.exec(tupleFactory.newTuple(Arrays.asList(new DataByteArray(sketch.toByteArray()), 1))); |
| } |
| } |