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InstantiatingHttpJsonChannelProviderTest.java
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InstantiatingHttpJsonChannelProviderTest.java
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/*
* Copyright 2019 Google LLC
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.google.api.gax.httpjson;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertEquals;
import com.google.api.gax.rpc.HeaderProvider;
import com.google.api.gax.rpc.TransportChannelProvider;
import com.google.api.gax.rpc.mtls.AbstractMtlsTransportChannelTest;
import com.google.api.gax.rpc.mtls.MtlsProvider;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.Collections;
import java.util.Map;
import java.util.concurrent.Executor;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.mockito.Mockito;
@RunWith(JUnit4.class)
public class InstantiatingHttpJsonChannelProviderTest extends AbstractMtlsTransportChannelTest {
private static final String DEFAULT_ENDPOINT = "localhost:8080";
private static final Map<String, String> DEFAULT_HEADER_MAP = Collections.emptyMap();
@Test
public void basicTest() throws IOException {
ScheduledExecutorService executor = new ScheduledThreadPoolExecutor(1);
executor.shutdown();
TransportChannelProvider provider = InstantiatingHttpJsonChannelProvider.newBuilder().build();
assertThat(provider.needsEndpoint()).isTrue();
provider = provider.withEndpoint(DEFAULT_ENDPOINT);
assertThat(provider.needsEndpoint()).isFalse();
assertThat(provider.needsHeaders()).isTrue();
provider = provider.withHeaders(DEFAULT_HEADER_MAP);
assertThat(provider.needsHeaders()).isFalse();
// Make sure getTransportChannel works without setting executor
assertThat(provider.getTransportChannel()).isInstanceOf(HttpJsonTransportChannel.class);
assertThat(provider.needsExecutor()).isTrue();
provider = provider.withExecutor((Executor) executor);
assertThat(provider.needsExecutor()).isFalse();
// Added for code coverage. Remove when withExecutor(ScheduledExecutorService) is removed.
assertThat(provider.needsExecutor()).isFalse();
provider = provider.withExecutor(executor);
assertThat(provider.needsExecutor()).isFalse();
assertThat(provider.acceptsPoolSize()).isFalse();
Exception thrownException = null;
try {
provider.withPoolSize(1);
} catch (Exception e) {
thrownException = e;
}
assertThat(thrownException).isInstanceOf(UnsupportedOperationException.class);
assertThat(provider.needsCredentials()).isFalse();
thrownException = null;
try {
provider.withCredentials(null);
} catch (Exception e) {
thrownException = e;
}
assertThat(thrownException).isInstanceOf(UnsupportedOperationException.class);
assertEquals(HttpJsonTransportChannel.getHttpJsonTransportName(), provider.getTransportName());
assertThat(provider.getTransportChannel()).isInstanceOf(HttpJsonTransportChannel.class);
// Make sure we can create channels OK.
provider.getTransportChannel().shutdownNow();
}
// Ensure that a default executor is created by the ManagedHttpJsonChannel even
// if not provided by the TransportChannelProvider
@Test
public void managedChannelUsesDefaultChannelExecutor() throws IOException {
InstantiatingHttpJsonChannelProvider instantiatingHttpJsonChannelProvider =
InstantiatingHttpJsonChannelProvider.newBuilder().setEndpoint(DEFAULT_ENDPOINT).build();
instantiatingHttpJsonChannelProvider =
(InstantiatingHttpJsonChannelProvider)
instantiatingHttpJsonChannelProvider.withHeaders(DEFAULT_HEADER_MAP);
HttpJsonTransportChannel httpJsonTransportChannel =
instantiatingHttpJsonChannelProvider.getTransportChannel();
// By default, the channel will be wrapped with ManagedHttpJsonInterceptorChannel
ManagedHttpJsonInterceptorChannel interceptorChannel =
(ManagedHttpJsonInterceptorChannel) httpJsonTransportChannel.getManagedChannel();
ManagedHttpJsonChannel managedHttpJsonChannel = interceptorChannel.getChannel();
assertThat(managedHttpJsonChannel.getExecutor()).isNotNull();
// Clean up the resources (executor, deadlineScheduler, httpTransport)
instantiatingHttpJsonChannelProvider.getTransportChannel().shutdownNow();
}
// Ensure that the user's executor is used by the ManagedHttpJsonChannel
@Test
public void managedChannelUsesCustomExecutor() throws IOException {
// Custom executor to use -- Lifecycle must be managed by this test
ScheduledExecutorService executor = new ScheduledThreadPoolExecutor(1);
executor.shutdown();
InstantiatingHttpJsonChannelProvider instantiatingHttpJsonChannelProvider =
InstantiatingHttpJsonChannelProvider.newBuilder()
.setEndpoint(DEFAULT_ENDPOINT)
.setExecutor(executor)
.build();
instantiatingHttpJsonChannelProvider =
(InstantiatingHttpJsonChannelProvider)
instantiatingHttpJsonChannelProvider.withHeaders(DEFAULT_HEADER_MAP);
HttpJsonTransportChannel httpJsonTransportChannel =
instantiatingHttpJsonChannelProvider.getTransportChannel();
// By default, the channel will be wrapped with ManagedHttpJsonInterceptorChannel
ManagedHttpJsonInterceptorChannel interceptorChannel =
(ManagedHttpJsonInterceptorChannel) httpJsonTransportChannel.getManagedChannel();
ManagedHttpJsonChannel managedHttpJsonChannel = interceptorChannel.getChannel();
assertThat(managedHttpJsonChannel.getExecutor()).isNotNull();
assertThat(managedHttpJsonChannel.getExecutor()).isEqualTo(executor);
// Clean up the resources (executor, deadlineScheduler, httpTransport)
instantiatingHttpJsonChannelProvider.getTransportChannel().shutdownNow();
}
@Override
protected Object getMtlsObjectFromTransportChannel(MtlsProvider provider)
throws IOException, GeneralSecurityException {
InstantiatingHttpJsonChannelProvider channelProvider =
InstantiatingHttpJsonChannelProvider.newBuilder()
.setEndpoint("localhost:8080")
.setMtlsProvider(provider)
.setHeaderProvider(Mockito.mock(HeaderProvider.class))
.setExecutor(Mockito.mock(Executor.class))
.build();
return channelProvider.createHttpTransport();
}
}