| /* |
| * 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.flink.core.functions; |
| |
| import static org.apache.flink.statefun.flink.core.TestUtils.ENVELOPE_FACTORY; |
| import static org.hamcrest.CoreMatchers.is; |
| import static org.junit.Assert.assertThat; |
| |
| import java.time.Duration; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.CompletableFuture; |
| import org.apache.flink.statefun.flink.core.generated.EnvelopeAddress; |
| import org.apache.flink.statefun.flink.core.message.Message; |
| import org.apache.flink.statefun.flink.core.metrics.FunctionTypeMetrics; |
| import org.apache.flink.statefun.sdk.Address; |
| import org.apache.flink.statefun.sdk.Context; |
| import org.apache.flink.statefun.sdk.FunctionType; |
| import org.apache.flink.statefun.sdk.io.EgressIdentifier; |
| import org.junit.Test; |
| |
| public class LocalStatefulFunctionGroupTest { |
| // test constants |
| private static final FunctionType FUNCTION_TYPE = new FunctionType("test", "a"); |
| private static final Address FUNCTION_1_ADDR = new Address(FUNCTION_TYPE, "a-1"); |
| private static final Address FUNCTION_2_ADDR = new Address(FUNCTION_TYPE, "a-2"); |
| private static final EnvelopeAddress DUMMY_PAYLOAD = EnvelopeAddress.getDefaultInstance(); |
| |
| // test collaborators |
| private final FakeContext context = new FakeContext(); |
| private final FakeFunction function = new FakeFunction(); |
| private final FakeFunctionRepository fakeRepository = new FakeFunctionRepository(function); |
| |
| // object under test |
| private final LocalFunctionGroup functionGroupUnderTest = |
| new LocalFunctionGroup(fakeRepository, context); |
| |
| @Test |
| public void sanity() { |
| boolean processed = functionGroupUnderTest.processNextEnvelope(); |
| |
| assertThat(processed, is(false)); |
| } |
| |
| @Test |
| public void addingMessageWouldBeProcessedLater() { |
| Message message = ENVELOPE_FACTORY.from(FUNCTION_1_ADDR, FUNCTION_2_ADDR, DUMMY_PAYLOAD); |
| |
| functionGroupUnderTest.enqueue(message); |
| |
| assertThat(functionGroupUnderTest.processNextEnvelope(), is(true)); |
| assertThat(functionGroupUnderTest.processNextEnvelope(), is(false)); |
| } |
| |
| @Test |
| public void aFunctionWouldReceiveAMessageAddressedToIt() { |
| Message message = ENVELOPE_FACTORY.from(FUNCTION_1_ADDR, FUNCTION_2_ADDR, DUMMY_PAYLOAD); |
| |
| functionGroupUnderTest.enqueue(message); |
| functionGroupUnderTest.processNextEnvelope(); |
| |
| Message m = function.receivedMessages.get(0); |
| |
| assertThat(m.target(), is(message.target())); |
| } |
| |
| // --------------------------------------------------------------------------- |
| // test helpers |
| // --------------------------------------------------------------------------- |
| |
| static final class FakeFunction implements LiveFunction { |
| List<Message> receivedMessages = new ArrayList<>(); |
| |
| @Override |
| public void receive(Context context, Message message) { |
| receivedMessages.add(message); |
| } |
| |
| @Override |
| public FunctionTypeMetrics metrics() { |
| throw new UnsupportedOperationException(); |
| } |
| } |
| |
| static final class FakeFunctionRepository implements FunctionRepository { |
| private LiveFunction function; |
| |
| FakeFunctionRepository(FakeFunction function) { |
| this.function = function; |
| } |
| |
| @Override |
| public LiveFunction get(FunctionType type) { |
| return function; |
| } |
| } |
| |
| static final class FakeContext implements ApplyingContext { |
| Message in; |
| |
| @Override |
| public Address self() { |
| return in.target(); |
| } |
| |
| @Override |
| public Address caller() { |
| return in.source(); |
| } |
| |
| @Override |
| public void send(Address to, Object message) {} |
| |
| @Override |
| public <T> void send(EgressIdentifier<T> egress, T what) {} |
| |
| @Override |
| public void sendAfter(Duration duration, Address to, Object message) {} |
| |
| @Override |
| public void sendAfter(Duration delay, Address to, Object message, String cancellationToken) {} |
| |
| @Override |
| public void cancelDelayedMessage(String cancellationToken) {} |
| |
| @Override |
| public <M, T> void registerAsyncOperation(M metadata, CompletableFuture<T> future) {} |
| |
| @Override |
| public void apply(LiveFunction function, Message inMessage) { |
| in = inMessage; |
| function.receive(this, inMessage); |
| } |
| } |
| } |