| /** |
| * 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.storm.state; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * Unit tests for {@link InMemoryKeyValueState} |
| */ |
| public class InMemoryKeyValueStateTest { |
| |
| KeyValueState<String, String> keyValueState; |
| |
| @Before |
| public void setUp() { |
| keyValueState = new InMemoryKeyValueState<>(); |
| } |
| |
| @Test |
| public void testPutAndGet() throws Exception { |
| keyValueState.put("a", "1"); |
| keyValueState.put("b", "2"); |
| assertArrayEquals(new String[]{ "1", "2", null }, getValues()); |
| } |
| |
| @Test |
| public void testPutAndDelete() throws Exception { |
| keyValueState.put("a", "1"); |
| keyValueState.put("b", "2"); |
| assertEquals("1", keyValueState.get("a")); |
| assertEquals("2", keyValueState.get("b")); |
| assertEquals(null, keyValueState.get("c")); |
| assertEquals("1", keyValueState.delete("a")); |
| assertEquals(null, keyValueState.get("a")); |
| assertEquals("2", keyValueState.get("b")); |
| assertEquals(null, keyValueState.get("c")); |
| } |
| |
| @Test |
| public void testPrepareCommitRollback() throws Exception { |
| keyValueState.put("a", "1"); |
| keyValueState.put("b", "2"); |
| keyValueState.prepareCommit(1); |
| keyValueState.put("c", "3"); |
| assertArrayEquals(new String[]{ "1", "2", "3" }, getValues()); |
| keyValueState.rollback(); |
| assertArrayEquals(new String[]{ null, null, null }, getValues()); |
| keyValueState.put("a", "1"); |
| keyValueState.put("b", "2"); |
| keyValueState.prepareCommit(1); |
| keyValueState.commit(1); |
| keyValueState.put("c", "3"); |
| assertArrayEquals(new String[]{ "1", "2", "3" }, getValues()); |
| keyValueState.rollback(); |
| assertArrayEquals(new String[]{ "1", "2", null }, getValues()); |
| keyValueState.put("c", "3"); |
| assertEquals("2", keyValueState.delete("b")); |
| assertEquals("3", keyValueState.delete("c")); |
| assertArrayEquals(new String[]{ "1", null, null }, getValues()); |
| keyValueState.prepareCommit(2); |
| assertArrayEquals(new String[]{ "1", null, null }, getValues()); |
| keyValueState.commit(2); |
| assertArrayEquals(new String[]{ "1", null, null }, getValues()); |
| keyValueState.put("b", "2"); |
| keyValueState.prepareCommit(3); |
| keyValueState.put("c", "3"); |
| assertArrayEquals(new String[]{ "1", "2", "3" }, getValues()); |
| keyValueState.rollback(); |
| assertArrayEquals(new String[]{ "1", null, null }, getValues()); |
| } |
| |
| private String[] getValues() { |
| return new String[]{ |
| keyValueState.get("a"), |
| keyValueState.get("b"), |
| keyValueState.get("c") |
| }; |
| } |
| } |