| /* |
| * Copyright 2016 The gRPC Authors |
| * |
| * 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 |
| * |
| * 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 io.grpc.internal; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| import static io.grpc.internal.BaseDnsNameResolverProvider.ENABLE_GRPCLB_PROPERTY_NAME; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assume.assumeTrue; |
| import static org.mockito.Mockito.mock; |
| |
| import io.grpc.ChannelLogger; |
| import io.grpc.NameResolver; |
| import io.grpc.NameResolver.ServiceConfigParser; |
| import io.grpc.SynchronizationContext; |
| import java.net.URI; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Unit tests for {@link DnsNameResolverProvider}. */ |
| @RunWith(JUnit4.class) |
| public class DnsNameResolverProviderTest { |
| private final SynchronizationContext syncContext = new SynchronizationContext( |
| new Thread.UncaughtExceptionHandler() { |
| @Override |
| public void uncaughtException(Thread t, Throwable e) { |
| throw new AssertionError(e); |
| } |
| }); |
| private final NameResolver.Args args = NameResolver.Args.newBuilder() |
| .setDefaultPort(8080) |
| .setProxyDetector(GrpcUtil.DEFAULT_PROXY_DETECTOR) |
| .setSynchronizationContext(syncContext) |
| .setServiceConfigParser(mock(ServiceConfigParser.class)) |
| .setChannelLogger(mock(ChannelLogger.class)) |
| .build(); |
| |
| private DnsNameResolverProvider provider = new DnsNameResolverProvider(); |
| |
| @Test |
| public void isAvailable() { |
| assertTrue(provider.isAvailable()); |
| } |
| |
| @Test |
| public void newNameResolver() { |
| assertSame(DnsNameResolver.class, |
| provider.newNameResolver(URI.create("dns:///localhost:443"), args).getClass()); |
| assertNull( |
| provider.newNameResolver(URI.create("notdns:///localhost:443"), args)); |
| } |
| |
| @Test |
| public void isSrvEnabled_falseByDefault() { |
| assumeTrue(System.getProperty(ENABLE_GRPCLB_PROPERTY_NAME) == null); |
| |
| assertThat(provider.isSrvEnabled()).isFalse(); |
| } |
| } |