| /* |
| * 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.commons.collections4.map; |
| |
| import static org.junit.jupiter.api.Assertions.assertAll; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.commons.collections4.BulkTest; |
| import org.apache.commons.collections4.collection.AbstractCollectionTest; |
| import org.apache.commons.collections4.map.PassiveExpiringMap.ExpirationPolicy; |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * JUnit tests. |
| * |
| * @since 4.0 |
| */ |
| public class PassiveExpiringMapTest<K, V> extends AbstractMapTest<K, V> { |
| |
| private static class TestExpirationPolicy |
| implements ExpirationPolicy<Integer, String> { |
| |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public long expirationTime(final Integer key, final String value) { |
| // odd keys expire immediately, even keys never expire |
| if (key == null) { |
| return 0; |
| } |
| |
| if (key.intValue() % 2 == 0) { |
| return -1; |
| } |
| |
| return 0; |
| } |
| } |
| |
| public static junit.framework.Test suite() { |
| return BulkTest.makeSuite(PassiveExpiringMapTest.class); |
| } |
| |
| public PassiveExpiringMapTest() { |
| super(PassiveExpiringMapTest.class.getSimpleName()); |
| } |
| |
| // public void testCreate() throws Exception { |
| // writeExternalFormToDisk((java.io.Serializable) makeObject(), |
| // "src/test/resources/data/test/PassiveExpiringMap.emptyCollection.version4.obj"); |
| // |
| // writeExternalFormToDisk((java.io.Serializable) makeFullMap(), |
| // "src/test/resources/data/test/PassiveExpiringMap.fullCollection.version4.obj"); |
| // } |
| |
| @Override |
| public String getCompatibilityVersion() { |
| return "4"; |
| } |
| |
| private Map<Integer, String> makeDecoratedTestMap() { |
| final Map<Integer, String> m = new HashMap<>(); |
| m.put(Integer.valueOf(1), "one"); |
| m.put(Integer.valueOf(2), "two"); |
| m.put(Integer.valueOf(3), "three"); |
| m.put(Integer.valueOf(4), "four"); |
| m.put(Integer.valueOf(5), "five"); |
| m.put(Integer.valueOf(6), "six"); |
| return new PassiveExpiringMap<>(new TestExpirationPolicy(), m); |
| } |
| |
| @Override |
| public Map<K, V> makeObject() { |
| return new PassiveExpiringMap<>(); |
| } |
| |
| @Override |
| protected int getIterationBehaviour() { |
| return AbstractCollectionTest.UNORDERED; |
| } |
| |
| private Map<Integer, String> makeTestMap() { |
| final Map<Integer, String> m = |
| new PassiveExpiringMap<>(new TestExpirationPolicy()); |
| m.put(Integer.valueOf(1), "one"); |
| m.put(Integer.valueOf(2), "two"); |
| m.put(Integer.valueOf(3), "three"); |
| m.put(Integer.valueOf(4), "four"); |
| m.put(Integer.valueOf(5), "five"); |
| m.put(Integer.valueOf(6), "six"); |
| return m; |
| } |
| |
| @Test |
| public void testConstructors() { |
| assertAll( |
| () -> assertThrows(NullPointerException.class, () -> { |
| final Map<String, String> map = null; |
| new PassiveExpiringMap<>(map); |
| }, |
| "constructor - exception should have been thrown."), |
| () -> assertThrows(NullPointerException.class, () -> { |
| final ExpirationPolicy<String, String> policy = null; |
| new PassiveExpiringMap<>(policy); |
| }, |
| "constructor - exception should have been thrown."), |
| () -> assertThrows(NullPointerException.class, () -> { |
| final TimeUnit unit = null; |
| new PassiveExpiringMap<String, String>(10L, unit); |
| }, |
| "constructor - exception should have been thrown.") |
| ); |
| } |
| |
| @Test |
| public void testContainsKey() { |
| final Map<Integer, String> m = makeTestMap(); |
| assertFalse(m.containsKey(Integer.valueOf(1))); |
| assertFalse(m.containsKey(Integer.valueOf(3))); |
| assertFalse(m.containsKey(Integer.valueOf(5))); |
| assertTrue(m.containsKey(Integer.valueOf(2))); |
| assertTrue(m.containsKey(Integer.valueOf(4))); |
| assertTrue(m.containsKey(Integer.valueOf(6))); |
| } |
| |
| @Test |
| public void testContainsValue() { |
| final Map<Integer, String> m = makeTestMap(); |
| assertFalse(m.containsValue("one")); |
| assertFalse(m.containsValue("three")); |
| assertFalse(m.containsValue("five")); |
| assertTrue(m.containsValue("two")); |
| assertTrue(m.containsValue("four")); |
| assertTrue(m.containsValue("six")); |
| } |
| |
| @Test |
| public void testDecoratedMap() { |
| // entries shouldn't expire |
| final Map<Integer, String> m = makeDecoratedTestMap(); |
| assertEquals(6, m.size()); |
| assertEquals("one", m.get(Integer.valueOf(1))); |
| |
| // removing a single item shouldn't affect any other items |
| assertEquals("two", m.get(Integer.valueOf(2))); |
| m.remove(Integer.valueOf(2)); |
| assertEquals(5, m.size()); |
| assertEquals("one", m.get(Integer.valueOf(1))); |
| assertNull(m.get(Integer.valueOf(2))); |
| |
| // adding a single, even item shouldn't affect any other items |
| assertNull(m.get(Integer.valueOf(2))); |
| m.put(Integer.valueOf(2), "two"); |
| assertEquals(6, m.size()); |
| assertEquals("one", m.get(Integer.valueOf(1))); |
| assertEquals("two", m.get(Integer.valueOf(2))); |
| |
| // adding a single, odd item (one that expires) shouldn't affect any |
| // other items |
| // put the entry expires immediately |
| m.put(Integer.valueOf(1), "one-one"); |
| assertEquals(5, m.size()); |
| assertNull(m.get(Integer.valueOf(1))); |
| assertEquals("two", m.get(Integer.valueOf(2))); |
| } |
| |
| @Test |
| public void testEntrySet() { |
| final Map<Integer, String> m = makeTestMap(); |
| assertEquals(3, m.entrySet().size()); |
| } |
| |
| @Test |
| public void testExpiration() { |
| validateExpiration(new PassiveExpiringMap<String, String>(500), 500); |
| validateExpiration(new PassiveExpiringMap<String, String>(1000), 1000); |
| validateExpiration(new PassiveExpiringMap<>( |
| new PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy<String, String>(500)), 500); |
| validateExpiration(new PassiveExpiringMap<>( |
| new PassiveExpiringMap.ConstantTimeToLiveExpirationPolicy<String, String>(1, TimeUnit.SECONDS)), 1000); |
| } |
| |
| @Test |
| public void testGet() { |
| final Map<Integer, String> m = makeTestMap(); |
| assertNull(m.get(Integer.valueOf(1))); |
| assertEquals("two", m.get(Integer.valueOf(2))); |
| assertNull(m.get(Integer.valueOf(3))); |
| assertEquals("four", m.get(Integer.valueOf(4))); |
| assertNull(m.get(Integer.valueOf(5))); |
| assertEquals("six", m.get(Integer.valueOf(6))); |
| } |
| |
| @Test |
| public void testIsEmpty() { |
| Map<Integer, String> m = makeTestMap(); |
| assertFalse(m.isEmpty()); |
| |
| // remove just evens |
| m = makeTestMap(); |
| m.remove(Integer.valueOf(2)); |
| m.remove(Integer.valueOf(4)); |
| m.remove(Integer.valueOf(6)); |
| assertTrue(m.isEmpty()); |
| } |
| |
| @Test |
| public void testKeySet() { |
| final Map<Integer, String> m = makeTestMap(); |
| assertEquals(3, m.size()); |
| } |
| |
| @Test |
| public void testPut() { |
| final Map<Integer, String> m = makeTestMap(); |
| assertNull(m.put(Integer.valueOf(1), "ONE")); |
| assertEquals("two", m.put(Integer.valueOf(2), "TWO")); |
| assertNull(m.put(Integer.valueOf(3), "THREE")); |
| assertEquals("four", m.put(Integer.valueOf(4), "FOUR")); |
| assertNull(m.put(Integer.valueOf(5), "FIVE")); |
| assertEquals("six", m.put(Integer.valueOf(6), "SIX")); |
| } |
| |
| @Test |
| public void testSize() { |
| final Map<Integer, String> m = makeTestMap(); |
| assertEquals(3, m.size()); |
| } |
| |
| @Test |
| public void testValues() { |
| final Map<Integer, String> m = makeTestMap(); |
| assertEquals(3, m.size()); |
| } |
| |
| @Test |
| public void testZeroTimeToLive() { |
| // item should not be available |
| final PassiveExpiringMap<String, String> m = new PassiveExpiringMap<>(0L); |
| m.put("a", "b"); |
| assertNull(m.get("a")); |
| } |
| |
| private void validateExpiration(final Map<String, String> map, final long timeout) { |
| map.put("a", "b"); |
| |
| assertNotNull(map.get("a")); |
| |
| try{ |
| Thread.sleep(2 * timeout); |
| } catch (final InterruptedException e) { |
| fail(); |
| } |
| |
| assertNull(map.get("a")); |
| } |
| |
| } |