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JndiResourceResolverTest.java
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JndiResourceResolverTest.java
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/*
* Copyright 2018 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 org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import io.grpc.internal.DnsNameResolver.SrvRecord;
import io.grpc.internal.JndiResourceResolverFactory.JndiRecordFetcher;
import io.grpc.internal.JndiResourceResolverFactory.JndiResourceResolver;
import io.grpc.internal.JndiResourceResolverFactory.RecordFetcher;
import java.util.Arrays;
import java.util.List;
import org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement;
import org.junit.Assume;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Unit tests for {@link JndiResourceResolverFactory}.
*/
@RunWith(JUnit4.class)
public class JndiResourceResolverTest {
@Test
public void normalizeDataRemovesJndiFormattingForTxtRecords() {
assertEquals("blah", JndiResourceResolver.unquote("blah"));
assertEquals("", JndiResourceResolver.unquote("\"\""));
assertEquals("blahblah", JndiResourceResolver.unquote("blah blah"));
assertEquals("blahfoo blah", JndiResourceResolver.unquote("blah \"foo blah\""));
assertEquals("blah blah", JndiResourceResolver.unquote("\"blah blah\""));
assertEquals("blah\"blah", JndiResourceResolver.unquote("\"blah\\\"blah\""));
assertEquals("blah\\blah", JndiResourceResolver.unquote("\"blah\\\\blah\""));
}
@IgnoreJRERequirement
@Test
public void jndiResolverWorks() throws Exception {
Assume.assumeNoException(new JndiResourceResolverFactory().unavailabilityCause());
RecordFetcher recordFetcher = new JndiRecordFetcher();
try {
recordFetcher.getAllRecords("SRV", "dns:///localhost");
} catch (javax.naming.CommunicationException e) {
Assume.assumeNoException(e);
} catch (javax.naming.NameNotFoundException e) {
Assume.assumeNoException(e);
}
}
@Test
public void txtRecordLookup() throws Exception {
RecordFetcher recordFetcher = mock(RecordFetcher.class);
when(recordFetcher.getAllRecords("TXT", "dns:///service.example.com"))
.thenReturn(Arrays.asList("foo", "\"bar\""));
List<String> golden = Arrays.asList("foo", "bar");
JndiResourceResolver resolver = new JndiResourceResolver(recordFetcher);
assertThat(resolver.resolveTxt("service.example.com")).isEqualTo(golden);
}
@SuppressWarnings("deprecation")
@Test
public void srvRecordLookup() throws Exception {
RecordFetcher recordFetcher = mock(RecordFetcher.class);
when(recordFetcher.getAllRecords("SRV", "dns:///service.example.com"))
.thenReturn(Arrays.asList(
"0 0 314 foo.example.com.", "0 0 42 bar.example.com.", "0 0 1 discard.example.com"));
List<SrvRecord> golden = Arrays.asList(
new SrvRecord("foo.example.com.", 314),
new SrvRecord("bar.example.com.", 42));
JndiResourceResolver resolver = new JndiResourceResolver(recordFetcher);
assertThat(resolver.resolveSrv("service.example.com")).isEqualTo(golden);
}
}