| /* |
| * 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.cassandra.diag.store; |
| |
| import java.util.Map; |
| import java.util.NavigableMap; |
| |
| import org.junit.Test; |
| |
| import org.apache.cassandra.diag.DiagnosticEvent; |
| import org.apache.cassandra.diag.DiagnosticEventServiceTest.TestEvent1; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertSame; |
| |
| public class DiagnosticEventMemoryStoreTest |
| { |
| @Test |
| public void testEmpty() |
| { |
| DiagnosticEventMemoryStore store = new DiagnosticEventMemoryStore(); |
| assertEquals(0, store.size()); |
| assertEquals(0, store.scan(0L, 10).size()); |
| } |
| |
| @Test |
| public void testSingle() |
| { |
| DiagnosticEventMemoryStore store = new DiagnosticEventMemoryStore(); |
| store.store(new TestEvent1()); |
| assertEquals(1, store.size()); |
| assertEquals(1, store.scan(0L, 10).size()); |
| } |
| |
| @Test |
| public void testIdentity() |
| { |
| DiagnosticEventMemoryStore store = new DiagnosticEventMemoryStore(); |
| TestEvent1 e1 = new TestEvent1(); |
| TestEvent1 e2 = new TestEvent1(); |
| TestEvent1 e3 = new TestEvent1(); |
| |
| store.store(e1); |
| store.store(e2); |
| store.store(e3); |
| |
| assertEquals(3, store.size()); |
| |
| NavigableMap<Long, DiagnosticEvent> res = store.scan(0L, 10); |
| assertEquals(3, res.size()); |
| |
| Map.Entry<Long, DiagnosticEvent> entry = res.pollFirstEntry(); |
| assertEquals(Long.valueOf(1), entry.getKey()); |
| assertSame(e1, entry.getValue()); |
| |
| entry = res.pollFirstEntry(); |
| assertEquals(Long.valueOf(2), entry.getKey()); |
| assertSame(e2, entry.getValue()); |
| |
| entry = res.pollFirstEntry(); |
| assertEquals(Long.valueOf(3), entry.getKey()); |
| assertSame(e3, entry.getValue()); |
| } |
| |
| @Test |
| public void testLimit() |
| { |
| DiagnosticEventMemoryStore store = new DiagnosticEventMemoryStore(); |
| |
| TestEvent1 e1 = new TestEvent1(); |
| TestEvent1 e2 = new TestEvent1(); |
| TestEvent1 e3 = new TestEvent1(); |
| |
| store.store(e1); |
| store.store(e2); |
| store.store(e3); |
| |
| NavigableMap<Long, DiagnosticEvent> res = store.scan(0L, 2); |
| assertEquals(2, res.size()); |
| |
| Map.Entry<Long, DiagnosticEvent> entry = res.pollFirstEntry(); |
| assertEquals(Long.valueOf(1), entry.getKey()); |
| assertSame(e1, entry.getValue()); |
| |
| entry = res.pollLastEntry(); |
| assertEquals(Long.valueOf(2), entry.getKey()); |
| assertSame(e2, entry.getValue()); |
| } |
| |
| @Test |
| public void testSeek() |
| { |
| DiagnosticEventMemoryStore store = new DiagnosticEventMemoryStore(); |
| |
| TestEvent1 e2 = new TestEvent1(); |
| TestEvent1 e3 = new TestEvent1(); |
| |
| store.store(new TestEvent1()); |
| store.store(e2); |
| store.store(e3); |
| store.store(new TestEvent1()); |
| store.store(new TestEvent1()); |
| store.store(new TestEvent1()); |
| |
| NavigableMap<Long, DiagnosticEvent> res = store.scan(2L, 2); |
| assertEquals(2, res.size()); |
| |
| Map.Entry<Long, DiagnosticEvent> entry = res.pollFirstEntry(); |
| assertEquals(Long.valueOf(2), entry.getKey()); |
| assertSame(e2, entry.getValue()); |
| |
| entry = res.pollLastEntry(); |
| assertEquals(Long.valueOf(3), entry.getKey()); |
| assertSame(e3, entry.getValue()); |
| } |
| |
| @Test |
| public void testMaxElements() |
| { |
| DiagnosticEventMemoryStore store = new DiagnosticEventMemoryStore(); |
| store.setMaxSize(3); |
| |
| store.store(new TestEvent1()); |
| store.store(new TestEvent1()); |
| store.store(new TestEvent1()); |
| TestEvent1 e2 = new TestEvent1(); // 4 |
| TestEvent1 e3 = new TestEvent1(); |
| store.store(e2); |
| store.store(e3); |
| store.store(new TestEvent1()); // 6 |
| |
| assertEquals(3, store.size()); |
| |
| NavigableMap<Long, DiagnosticEvent> res = store.scan(4L, 2); |
| assertEquals(2, res.size()); |
| |
| Map.Entry<Long, DiagnosticEvent> entry = res.pollFirstEntry(); |
| assertEquals(Long.valueOf(4), entry.getKey()); |
| assertSame(e2, entry.getValue()); |
| |
| entry = res.pollFirstEntry(); |
| assertEquals(Long.valueOf(5), entry.getKey()); |
| assertSame(e3, entry.getValue()); |
| |
| store.store(new TestEvent1()); // 7 |
| store.store(new TestEvent1()); |
| store.store(new TestEvent1()); |
| |
| res = store.scan(4L, 2); |
| assertEquals(2, res.size()); |
| assertEquals(Long.valueOf(7), res.pollFirstEntry().getKey()); |
| assertEquals(Long.valueOf(8), res.pollLastEntry().getKey()); |
| } |
| } |