| /* |
| * 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.kll; |
| |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| @SuppressWarnings("javadoc") |
| public class KllFloatsSketchIteratorTest { |
| |
| @Test |
| public void emptySketch() { |
| KllFloatsSketch sketch = new KllFloatsSketch(); |
| KllFloatsSketchIterator it = sketch.iterator(); |
| Assert.assertFalse(it.next()); |
| } |
| |
| @Test |
| public void oneItemSketch() { |
| KllFloatsSketch sketch = new KllFloatsSketch(); |
| sketch.update(0); |
| KllFloatsSketchIterator it = sketch.iterator(); |
| Assert.assertTrue(it.next()); |
| Assert.assertEquals(it.getValue(), 0f); |
| Assert.assertEquals(it.getWeight(), 1); |
| Assert.assertFalse(it.next()); |
| } |
| |
| @Test |
| public void bigSketches() { |
| for (int n = 1000; n < 100000; n += 2000) { |
| KllFloatsSketch sketch = new KllFloatsSketch(); |
| for (int i = 0; i < n; i++) { |
| sketch.update(i); |
| } |
| KllFloatsSketchIterator it = sketch.iterator(); |
| int count = 0; |
| int weight = 0; |
| while (it.next()) { |
| count++; |
| weight += it.getWeight(); |
| } |
| Assert.assertEquals(count, sketch.getNumRetained()); |
| Assert.assertEquals(weight, n); |
| } |
| } |
| |
| } |