| /** |
| * 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.hadoop.hbase.io.asyncfs; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.testclassification.MiscTests; |
| import org.apache.hadoop.hbase.testclassification.SmallTests; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category({ MiscTests.class, SmallTests.class }) |
| public class TestSendBufSizePredictor { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestSendBufSizePredictor.class); |
| |
| @Test |
| public void test() { |
| SendBufSizePredictor p = new SendBufSizePredictor(); |
| assertEquals(8 * 1024, p.guess(5 * 1024)); |
| assertEquals(8 * 1024, p.guess(5 * 1024)); |
| assertEquals(16 * 1024, p.guess(10 * 1024)); |
| // it wont reduce directly to 4KB |
| assertEquals(8 * 1024, p.guess(4 * 1024)); |
| // This time it will reduece |
| assertEquals(4 * 1024, p.guess(4 * 1024)); |
| } |
| } |