| /* |
| * 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.logging.log4j.util; |
| |
| import org.junit.jupiter.api.AfterAll; |
| import org.junit.jupiter.api.BeforeAll; |
| import org.junit.jupiter.api.Test; |
| import org.junit.jupiter.api.condition.EnabledIfSystemProperty; |
| import org.junit.jupiter.api.parallel.Isolated; |
| import org.junit.jupiter.api.parallel.ResourceLock; |
| import org.junit.jupiter.api.parallel.Resources; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| |
| import static org.junit.jupiter.api.Assertions.*; |
| |
| /** |
| * Tests that the Unbox ring buffer size is configurable. |
| * Must be run in a separate process as the other UnboxTest or the last-run test will fail. |
| * Run this test on its own via {@code mvn --projects log4j-api test -Dtest=Unbox2ConfigurableTest} which will automatically |
| * enable the test, too. |
| */ |
| @EnabledIfSystemProperty(named = "test", matches = ".*Unbox2ConfigurableTest.*") |
| @Isolated |
| public class Unbox2ConfigurableTest { |
| @BeforeAll |
| public static void beforeClass() { |
| System.setProperty("log4j.unbox.ringbuffer.size", "65"); |
| } |
| |
| @AfterAll |
| public static void afterClass() throws Exception { |
| System.clearProperty("log4j.unbox.ringbuffer.size"); |
| |
| // ensure subsequent tests (which assume 32 slots) pass |
| final Field field = Unbox.class.getDeclaredField("RINGBUFFER_SIZE"); |
| field.setAccessible(true); // make non-private |
| |
| final Field modifierField = Field.class.getDeclaredField("modifiers"); |
| modifierField.setAccessible(true); |
| modifierField.setInt(field, field.getModifiers() &~ Modifier.FINAL); // make non-final |
| |
| field.set(null, 32); // reset to default |
| |
| final Field threadLocalField = Unbox.class.getDeclaredField("threadLocalState"); |
| threadLocalField.setAccessible(true); |
| final ThreadLocal<?> threadLocal = (ThreadLocal<?>) threadLocalField.get(null); |
| threadLocal.remove(); |
| threadLocalField.set(null, new ThreadLocal<>()); |
| } |
| |
| @Test |
| public void testBoxConfiguredTo128Slots() { |
| // next power of 2 that is 65 or more |
| assertEquals(128, Unbox.getRingbufferSize()); |
| } |
| |
| @Test |
| public void testBoxSuccessfullyConfiguredTo128Slots() { |
| final int MAX = 128; |
| final StringBuilder[] probe = new StringBuilder[MAX * 3]; |
| for (int i = 0; i <= probe.length - 8; ) { |
| probe[i++] = Unbox.box(true); |
| probe[i++] = Unbox.box('c'); |
| probe[i++] = Unbox.box(Byte.MAX_VALUE); |
| probe[i++] = Unbox.box(Double.MAX_VALUE); |
| probe[i++] = Unbox.box(Float.MAX_VALUE); |
| probe[i++] = Unbox.box(Integer.MAX_VALUE); |
| probe[i++] = Unbox.box(Long.MAX_VALUE); |
| probe[i++] = Unbox.box(Short.MAX_VALUE); |
| } |
| for (int i = 0; i < probe.length - MAX; i++) { |
| assertSame(probe[i], probe[i + MAX], "probe[" + i +"], probe[" + (i + MAX) +"]"); |
| for (int j = 1; j < MAX - 1; j++) { |
| assertNotSame(probe[i], probe[i + j], "probe[" + i +"], probe[" + (i + j) +"]"); |
| } |
| } |
| } |
| } |