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/*
* Copyright © 2012 The Feign Authors (feign@commonhaus.dev)
*
* 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 feign;
import static org.assertj.core.api.Assertions.assertThat;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import org.junit.jupiter.api.Test;
public class MethodInfoTest {
static class AsyncClientTest {
public interface AsyncClient {
CompletableFuture<String> log();
}
@Test
void completableFutureOfString() throws Exception {
MethodInfo mi = new MethodInfo(AsyncClient.class, AsyncClient.class.getMethod("log"));
assertThat(mi.isAsyncReturnType()).isTrue();
assertThat(mi.underlyingReturnType()).isEqualTo(String.class);
}
}
static class GenericAsyncClientTest {
public interface GenericAsyncClient<T> {
T log();
}
public interface AsyncClient extends GenericAsyncClient<CompletableFuture<String>> {}
@Test
void genericCompletableFutureOfString() throws Exception {
MethodInfo mi = new MethodInfo(AsyncClient.class, AsyncClient.class.getMethod("log"));
assertThat(mi.isAsyncReturnType()).isTrue();
assertThat(mi.underlyingReturnType()).isEqualTo(String.class);
}
}
static class SyncClientTest {
public interface SyncClient {
String log();
}
@Test
void string() throws Exception {
MethodInfo mi = new MethodInfo(SyncClient.class, SyncClient.class.getMethod("log"));
assertThat(mi.isAsyncReturnType()).isFalse();
assertThat(mi.underlyingReturnType()).isEqualTo(String.class);
}
}
static class GenericSyncClientTest {
public interface GenericSyncClient<T> {
T log();
}
public interface SyncClient extends GenericSyncClient<List<String>> {}
public static class ListOfStrings implements ParameterizedType {
@Override
public Type[] getActualTypeArguments() {
return new Type[] {String.class};
}
@Override
public Type getRawType() {
return List.class;
}
@Override
public Type getOwnerType() {
return null;
}
}
@Test
void listOfStrings() throws Exception {
MethodInfo mi = new MethodInfo(SyncClient.class, SyncClient.class.getMethod("log"));
assertThat(mi.isAsyncReturnType()).isFalse();
assertThat(Types.equals(new ListOfStrings(), mi.underlyingReturnType())).isTrue();
}
}
}