| /* |
| * 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.eclipse.aether; |
| |
| import java.util.UUID; |
| import java.util.concurrent.atomic.AtomicReference; |
| import java.util.function.Supplier; |
| |
| import org.junit.jupiter.api.Test; |
| import org.junit.jupiter.api.Timeout; |
| |
| import static org.junit.jupiter.api.Assertions.*; |
| |
| public class DefaultSessionDataTest { |
| |
| private final DefaultSessionData data = new DefaultSessionData(); |
| |
| private Object get(Object key) { |
| return data.get(key); |
| } |
| |
| private void set(Object key, Object value) { |
| data.set(key, value); |
| } |
| |
| private boolean set(Object key, Object oldValue, Object newValue) { |
| return data.set(key, oldValue, newValue); |
| } |
| |
| private Object computeIfAbsent(Object key, Supplier<Object> supplier) { |
| return data.computeIfAbsent(key, supplier); |
| } |
| |
| @Test |
| void testGet_NullKey() { |
| assertThrows(RuntimeException.class, () -> get(null)); |
| } |
| |
| @Test |
| void testSet_NullKey() { |
| assertThrows(RuntimeException.class, () -> set(null, "data")); |
| } |
| |
| @Test |
| void testGetSet() { |
| Object key = "key"; |
| assertNull(get(key)); |
| set(key, "value"); |
| assertEquals("value", get(key)); |
| set(key, "changed"); |
| assertEquals("changed", get(key)); |
| set(key, null); |
| assertNull(get(key)); |
| } |
| |
| @Test |
| void testGetSafeSet() { |
| Object key = "key"; |
| assertNull(get(key)); |
| assertFalse(set(key, "wrong", "value")); |
| assertNull(get(key)); |
| assertTrue(set(key, null, "value")); |
| assertEquals("value", get(key)); |
| assertTrue(set(key, "value", "value")); |
| assertEquals("value", get(key)); |
| assertFalse(set(key, "wrong", "changed")); |
| assertEquals("value", get(key)); |
| assertTrue(set(key, "value", "changed")); |
| assertEquals("changed", get(key)); |
| assertFalse(set(key, "wrong", null)); |
| assertEquals("changed", get(key)); |
| assertTrue(set(key, "changed", null)); |
| assertNull(get(key)); |
| assertTrue(set(key, null, null)); |
| assertNull(get(key)); |
| } |
| |
| @Test |
| void testComputeIfAbsent() { |
| Object key = "key"; |
| assertNull(get(key)); |
| assertEquals("value", computeIfAbsent(key, () -> "value")); |
| assertEquals("value", computeIfAbsent(key, () -> "changed")); |
| } |
| |
| @Test |
| @Timeout(10L) |
| public void testConcurrency() throws InterruptedException { |
| final AtomicReference<Throwable> error = new AtomicReference<>(); |
| Thread[] threads = new Thread[20]; |
| for (int i = 0; i < threads.length; i++) { |
| threads[i] = new Thread() { |
| @Override |
| public void run() { |
| for (int i = 0; i < 100; i++) { |
| String key = UUID.randomUUID().toString(); |
| try { |
| set(key, Boolean.TRUE); |
| assertEquals(Boolean.TRUE, get(key)); |
| } catch (Throwable t) { |
| error.compareAndSet(null, t); |
| t.printStackTrace(); |
| } |
| } |
| } |
| }; |
| } |
| for (Thread thread : threads) { |
| thread.start(); |
| } |
| for (Thread thread : threads) { |
| thread.join(); |
| } |
| assertNull(error.get(), String.valueOf(error.get())); |
| } |
| } |