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test: Add BIDI streaming showcase test. (#1604)
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showcase/gapic-showcase/src/test/java/com/google/showcase/v1beta1/it/ITBidiStreaming.java
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| /* | ||
| * Copyright 2023 Google LLC | ||
| * | ||
| * Licensed 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 | ||
| * | ||
| * https://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. | ||
| */ | ||
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| package com.google.showcase.v1beta1.it; | ||
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| import static com.google.common.truth.Truth.assertThat; | ||
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| import com.google.api.core.SettableApiFuture; | ||
| import com.google.api.gax.rpc.ClientStream; | ||
| import com.google.api.gax.rpc.ResponseObserver; | ||
| import com.google.api.gax.rpc.StreamController; | ||
| import com.google.showcase.v1beta1.EchoClient; | ||
| import com.google.showcase.v1beta1.EchoRequest; | ||
| import com.google.showcase.v1beta1.EchoResponse; | ||
| import com.google.showcase.v1beta1.it.util.TestClientInitializer; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import org.junit.After; | ||
| import org.junit.Before; | ||
| import org.junit.Test; | ||
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| public class ITBidiStreaming { | ||
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| private EchoClient grpcClient; | ||
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| @Before | ||
| public void setUp() throws Exception { | ||
| // Create gRPC Echo Client | ||
| grpcClient = TestClientInitializer.createGrpcEchoClient(); | ||
| } | ||
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| // The current implementation of BIDI streaming on Echo showcase server is that it would echo the | ||
| // request content back on every request, so this test verifies that the response content is | ||
| // exactly the same as request content. | ||
| // Ideally we should make the BIDI streaming server more generic, e.g. only respond when there are | ||
| // three requests, respond twice for every request etc. If that happens, the response content may | ||
| // not be exactly the same as request content. | ||
| @Test | ||
| public void testGrpc_splitCall_shouldListensToResponse() throws Exception { | ||
| // given | ||
| List<String> expected = Arrays.asList("The rain in Spain stays mainly on the plain".split(" ")); | ||
| TestResponseObserver responseObserver = new TestResponseObserver(); | ||
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| // when | ||
| ClientStream<EchoRequest> clientStream = grpcClient.chatCallable().splitCall(responseObserver); | ||
| expected.forEach( | ||
| requestContent -> { | ||
| EchoRequest request = EchoRequest.newBuilder().setContent(requestContent).build(); | ||
| clientStream.send(request); | ||
| }); | ||
| clientStream.closeSend(); | ||
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| // then | ||
| List<String> actual = responseObserver.getFuture().get(); | ||
| assertThat(actual).containsExactlyElementsIn(expected).inOrder(); | ||
| } | ||
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| private static class TestResponseObserver implements ResponseObserver<EchoResponse> { | ||
| private final List<String> responses = new ArrayList<>(); | ||
| private final SettableApiFuture<List<String>> future = SettableApiFuture.create(); | ||
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| @Override | ||
| public void onStart(StreamController controller) { | ||
| // no-op | ||
| } | ||
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| @Override | ||
| public void onResponse(EchoResponse response) { | ||
| responses.add(response.getContent()); | ||
| } | ||
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| @Override | ||
| public void onError(Throwable t) { | ||
| // no-op | ||
| } | ||
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| @Override | ||
| public void onComplete() { | ||
| future.set(responses); | ||
| } | ||
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| public SettableApiFuture<List<String>> getFuture() { | ||
| return future; | ||
| } | ||
| } | ||
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| @After | ||
| public void tearDown() throws Exception { | ||
| grpcClient.close(); | ||
| } | ||
| } |
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53 changes: 53 additions & 0 deletions
53
...pic-showcase/src/test/java/com/google/showcase/v1beta1/it/util/TestClientInitializer.java
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| @@ -0,0 +1,53 @@ | ||
| /* | ||
| * Copyright 2023 Google LLC | ||
| * | ||
| * Licensed 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 | ||
| * | ||
| * https://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. | ||
| */ | ||
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| package com.google.showcase.v1beta1.it.util; | ||
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| import com.google.api.client.http.javanet.NetHttpTransport; | ||
| import com.google.api.gax.core.NoCredentialsProvider; | ||
| import com.google.showcase.v1beta1.EchoClient; | ||
| import com.google.showcase.v1beta1.EchoSettings; | ||
| import io.grpc.ManagedChannelBuilder; | ||
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| public class TestClientInitializer { | ||
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| public static EchoClient createGrpcEchoClient() throws Exception { | ||
| EchoSettings grpcEchoSettings = | ||
| EchoSettings.newBuilder() | ||
| .setCredentialsProvider(NoCredentialsProvider.create()) | ||
| .setTransportChannelProvider( | ||
| EchoSettings.defaultGrpcTransportProviderBuilder() | ||
| .setChannelConfigurator(ManagedChannelBuilder::usePlaintext) | ||
| .build()) | ||
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| .build(); | ||
| return EchoClient.create(grpcEchoSettings); | ||
| } | ||
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| public static EchoClient createHttpJsonEchoClient() throws Exception{ | ||
| EchoSettings httpJsonEchoSettings = | ||
| EchoSettings.newHttpJsonBuilder() | ||
| .setCredentialsProvider(NoCredentialsProvider.create()) | ||
| .setTransportChannelProvider( | ||
| EchoSettings.defaultHttpJsonTransportProviderBuilder() | ||
| .setHttpTransport( | ||
| new NetHttpTransport.Builder().doNotValidateCertificate().build()) | ||
| .setEndpoint("http://localhost:7469") | ||
| .build()) | ||
| .build(); | ||
| return EchoClient.create(httpJsonEchoSettings); | ||
| } | ||
| } |