| /* |
| * 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.beam.runners.fnexecution.control; |
| |
| import static org.hamcrest.Matchers.equalTo; |
| import static org.hamcrest.Matchers.is; |
| import static org.hamcrest.Matchers.isA; |
| import static org.junit.Assert.assertThat; |
| import static org.mockito.Matchers.any; |
| import static org.mockito.Mockito.verify; |
| |
| import java.util.concurrent.CompletionStage; |
| import java.util.concurrent.ExecutionException; |
| import java.util.function.Consumer; |
| import org.apache.beam.model.fnexecution.v1.BeamFnApi; |
| import org.apache.beam.model.fnexecution.v1.BeamFnApi.InstructionRequest; |
| import org.apache.beam.model.fnexecution.v1.BeamFnApi.InstructionResponse; |
| import org.apache.beam.sdk.util.MoreFutures; |
| import org.apache.beam.vendor.grpc.v1p13p1.io.grpc.stub.StreamObserver; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| import org.mockito.Mock; |
| import org.mockito.Mockito; |
| import org.mockito.MockitoAnnotations; |
| |
| /** Unit tests for {@link FnApiControlClient}. */ |
| @RunWith(JUnit4.class) |
| public class FnApiControlClientTest { |
| |
| @Rule public ExpectedException thrown = ExpectedException.none(); |
| |
| @Mock public StreamObserver<BeamFnApi.InstructionRequest> mockObserver; |
| private FnApiControlClient client; |
| |
| @Before |
| public void setup() { |
| MockitoAnnotations.initMocks(this); |
| client = FnApiControlClient.forRequestObserver("DUMMY", mockObserver); |
| } |
| |
| @Test |
| public void testRequestSent() { |
| String id = "instructionId"; |
| client.handle(BeamFnApi.InstructionRequest.newBuilder().setInstructionId(id).build()); |
| |
| verify(mockObserver).onNext(any(BeamFnApi.InstructionRequest.class)); |
| } |
| |
| @Test |
| public void testRequestSuccess() throws Exception { |
| String id = "successfulInstruction"; |
| |
| CompletionStage<InstructionResponse> responseFuture = |
| client.handle(BeamFnApi.InstructionRequest.newBuilder().setInstructionId(id).build()); |
| client |
| .asResponseObserver() |
| .onNext(BeamFnApi.InstructionResponse.newBuilder().setInstructionId(id).build()); |
| |
| BeamFnApi.InstructionResponse response = MoreFutures.get(responseFuture); |
| |
| assertThat(response.getInstructionId(), equalTo(id)); |
| } |
| |
| @Test |
| public void testRequestError() throws Exception { |
| String id = "instructionId"; |
| CompletionStage<InstructionResponse> responseFuture = |
| client.handle(InstructionRequest.newBuilder().setInstructionId(id).build()); |
| String error = "Oh no an error!"; |
| client |
| .asResponseObserver() |
| .onNext( |
| BeamFnApi.InstructionResponse.newBuilder() |
| .setInstructionId(id) |
| .setError(error) |
| .build()); |
| |
| thrown.expectCause(isA(RuntimeException.class)); |
| thrown.expectMessage(error); |
| MoreFutures.get(responseFuture); |
| } |
| |
| @Test |
| public void testUnknownResponseIgnored() throws Exception { |
| String id = "actualInstruction"; |
| String unknownId = "unknownInstruction"; |
| |
| CompletionStage<BeamFnApi.InstructionResponse> responseFuture = |
| client.handle(BeamFnApi.InstructionRequest.newBuilder().setInstructionId(id).build()); |
| |
| client |
| .asResponseObserver() |
| .onNext(BeamFnApi.InstructionResponse.newBuilder().setInstructionId(unknownId).build()); |
| |
| assertThat(MoreFutures.isDone(responseFuture), is(false)); |
| assertThat(MoreFutures.isCancelled(responseFuture), is(false)); |
| } |
| |
| @Test |
| public void testOnCompletedCancelsOutstanding() throws Exception { |
| String id = "clientHangUpInstruction"; |
| |
| CompletionStage<InstructionResponse> responseFuture = |
| client.handle(BeamFnApi.InstructionRequest.newBuilder().setInstructionId(id).build()); |
| |
| client.asResponseObserver().onCompleted(); |
| |
| thrown.expect(ExecutionException.class); |
| thrown.expectCause(isA(IllegalStateException.class)); |
| thrown.expectMessage("closed"); |
| MoreFutures.get(responseFuture); |
| } |
| |
| @Test |
| public void testOnErrorCancelsOutstanding() throws Exception { |
| String id = "errorInstruction"; |
| |
| CompletionStage<InstructionResponse> responseFuture = |
| client.handle(BeamFnApi.InstructionRequest.newBuilder().setInstructionId(id).build()); |
| |
| class FrazzleException extends Exception {} |
| |
| client.asResponseObserver().onError(new FrazzleException()); |
| |
| thrown.expect(ExecutionException.class); |
| thrown.expectCause(isA(FrazzleException.class)); |
| MoreFutures.get(responseFuture); |
| } |
| |
| @Test |
| public void testCloseCancelsOutstanding() throws Exception { |
| String id = "serverCloseInstruction"; |
| |
| CompletionStage<InstructionResponse> responseFuture = |
| client.handle(BeamFnApi.InstructionRequest.newBuilder().setInstructionId(id).build()); |
| |
| client.close(); |
| |
| thrown.expect(ExecutionException.class); |
| thrown.expectCause(isA(IllegalStateException.class)); |
| thrown.expectMessage("closed"); |
| MoreFutures.get(responseFuture); |
| } |
| |
| @SuppressWarnings("unchecked") |
| @Test |
| public void testOnCloseMultipleListener() throws Exception { |
| Consumer<FnApiControlClient> mockConsumer1 = Mockito.mock(Consumer.class); |
| Consumer<FnApiControlClient> mockConsumer2 = Mockito.mock(Consumer.class); |
| |
| client.onClose(mockConsumer1); |
| client.onClose(mockConsumer2); |
| |
| client.close(); |
| |
| verify(mockConsumer1).accept(client); |
| verify(mockConsumer2).accept(client); |
| } |
| } |