| /* |
| * 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.dataflow.worker.fn.stream; |
| |
| import static org.hamcrest.Matchers.instanceOf; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertThat; |
| |
| import org.apache.beam.sdk.fn.stream.BufferingStreamObserver; |
| import org.apache.beam.sdk.fn.stream.DirectStreamObserver; |
| import org.apache.beam.sdk.options.PipelineOptionsFactory; |
| import org.apache.beam.vendor.grpc.v1p13p1.io.grpc.stub.CallStreamObserver; |
| import org.apache.beam.vendor.grpc.v1p13p1.io.grpc.stub.StreamObserver; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| import org.mockito.Mock; |
| import org.mockito.MockitoAnnotations; |
| |
| /** Tests for {@link ServerStreamObserverFactory}. */ |
| @RunWith(JUnit4.class) |
| public class ServerStreamObserverFactoryTest { |
| @Mock private CallStreamObserver<String> mockResponseObserver; |
| |
| @Before |
| public void setUp() { |
| MockitoAnnotations.initMocks(this); |
| } |
| |
| @Test |
| public void testDefaultInstantiation() { |
| StreamObserver<String> observer = |
| ServerStreamObserverFactory.fromOptions(PipelineOptionsFactory.create()) |
| .from(mockResponseObserver); |
| assertThat(observer, instanceOf(DirectStreamObserver.class)); |
| } |
| |
| @Test |
| public void testBufferedStreamInstantiation() { |
| StreamObserver<String> observer = |
| ServerStreamObserverFactory.fromOptions( |
| PipelineOptionsFactory.fromArgs( |
| new String[] {"--experiments=beam_fn_api_buffered_stream"}) |
| .create()) |
| .from(mockResponseObserver); |
| assertThat(observer, instanceOf(BufferingStreamObserver.class)); |
| } |
| |
| @Test |
| public void testBufferedStreamWithLimitInstantiation() { |
| StreamObserver<String> observer = |
| ServerStreamObserverFactory.fromOptions( |
| PipelineOptionsFactory.fromArgs( |
| new String[] { |
| "--experiments=beam_fn_api_buffered_stream," |
| + "beam_fn_api_buffered_stream_buffer_size=1" |
| }) |
| .create()) |
| .from(mockResponseObserver); |
| assertThat(observer, instanceOf(BufferingStreamObserver.class)); |
| assertEquals(1, ((BufferingStreamObserver<String>) observer).getBufferSize()); |
| } |
| } |