| /* |
| * 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.flink.statefun.e2e.smoke; |
| |
| import static org.apache.flink.statefun.e2e.smoke.Utils.aRelayedStateModificationCommand; |
| import static org.apache.flink.statefun.e2e.smoke.Utils.aStateModificationCommand; |
| import static org.hamcrest.CoreMatchers.is; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| import org.junit.Test; |
| |
| public class FunctionStateTrackerTest { |
| |
| @Test |
| public void exampleUsage() { |
| FunctionStateTracker tracker = new FunctionStateTracker(1_000); |
| |
| tracker.apply(aStateModificationCommand(5)); |
| tracker.apply(aStateModificationCommand(5)); |
| tracker.apply(aStateModificationCommand(5)); |
| |
| assertThat(tracker.stateOf(5), is(3L)); |
| } |
| |
| @Test |
| public void testRelay() { |
| FunctionStateTracker tracker = new FunctionStateTracker(1_000); |
| |
| // send a layered state increment message, first to function 5, and then |
| // to function 6. |
| tracker.apply(aRelayedStateModificationCommand(5, 6)); |
| |
| assertThat(tracker.stateOf(5), is(0L)); |
| assertThat(tracker.stateOf(6), is(1L)); |
| } |
| } |