content: /*
   * Copyright 2010 Proofpoint, Inc.
   *
   * 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.airlift.json;
  
  import com.google.inject.Guice;
  import com.google.inject.Inject;
  import com.google.inject.Injector;
  import com.google.inject.Scopes;
  import org.junit.jupiter.api.Test;
  
  import static io.airlift.json.JsonCodecBinder.jsonCodecBinder;
  import static org.assertj.core.api.Assertions.assertThat;
  
  public class TestJsonCodecBinder
  {
      @Test
      public void ignoresRepeatedBinding()
      {
          Injector injector = Guice.createInjector(binder -> {
              jsonCodecBinder(binder).bindJsonCodec(Integer.class);
              jsonCodecBinder(binder).bindJsonCodec(Integer.class);
  
              binder.bind(Dummy.class).in(Scopes.SINGLETON);
          });
  
          assertThat(injector.getInstance(Dummy.class).getCodec()).isNotNull();
      }
  
      private static class Dummy
      {
          private final JsonCodec<Integer> codec;
  
          @Inject
          public Dummy(JsonCodec<Integer> codec)
          {
              this.codec = codec;
          }
  
          public JsonCodec<Integer> getCodec()
          {
              return codec;
          }
      }
  }
  