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.discovery.server;
  
  import com.google.common.base.Charsets;
  import com.google.common.collect.ImmutableMap;
  import com.google.common.collect.ImmutableSet;
  import com.google.common.collect.Sets;
  import com.google.common.io.Resources;
  import io.airlift.json.JsonCodec;
  import org.testng.annotations.Test;
  
  import java.io.IOException;
  import java.util.Collections;
  import java.util.Set;
  
  import static io.airlift.json.JsonCodec.jsonCodec;
  import static io.airlift.testing.Assertions.assertNotEquals;
  import static org.testng.Assert.assertEquals;
  
  public class TestServices
  {
      @Test
      public void testCreatesDefensiveCopyOfServices()
      {
          Set<Service> set = Sets.newHashSet();
          set.add(new Service(Id.random(), Id.random(), "blue", "pool", "/location", ImmutableMap.of("key", "value")));
  
          Services services = new Services("testing", set);
          assertEquals(services.getServices(), set);
  
          set.add(new Service(Id.random(), Id.random(), "red", "pool", "/location", ImmutableMap.of("key", "value")));
          assertNotEquals(services.getServices(), set);
      }
  
      @Test
      public void testServicesSetIsImmutable()
      {
          Service blue = new Service(Id.random(), Id.random(), "blue", "pool", "/location", ImmutableMap.of("key", "value"));
  
          Services services = new Services("testing", Sets.newHashSet(blue));
          try {
              services.getServices().add(new Service(Id.random(), Id.random(), "red", "pool", "/location", ImmutableMap.of("key", "value")));
  
              // a copy of the internal map is acceptable
              assertEquals(services.getServices(), ImmutableSet.of(blue));
          }
          catch (UnsupportedOperationException e) {
              // an exception is ok, too
          }
      }
  
      @Test
      public void testToJson()
              throws IOException
      {
          Service blue = new Service(Id.valueOf("c0c5be5f-b298-4cfa-922a-3e5954208444"), Id.valueOf("3ff52f57-04e0-46c3-b606-7497b09dd5c7"), "blue", "poolA", "/locationA", ImmutableMap.of("key", "valueA"));
          Service red = new Service(Id.valueOf("e3780aba-98fe-4de1-b682-5cd7a3264367"), Id.valueOf("989c4a90-ef68-4a05-8ad9-73a02aea406c"), "red", "poolB", "/locationB", ImmutableMap.of("key", "valueB"));
          Services services = new Services("testing", ImmutableSet.of(blue, red));
  
          String json = jsonCodec(Services.class).toJson(services);
  
          JsonCodec<Object> codec = jsonCodec(Object.class);
          Object parsed = codec.fromJson(json);
          Object expected = codec.fromJson(Resources.toString(Resources.getResource("services.json"), Charsets.UTF_8));
  
          assertEquals(parsed, expected);
      }
  
      @Test(expectedExceptions = NullPointerException.class, expectedExceptionsMessageRegExp = "environment.*")
      public void testValidatesEnvironmentNotNull()
      {
          new Services(null, Collections.emptySet());
      }
  
      @Test(expectedExceptions = NullPointerException.class, expectedExceptionsMessageRegExp = "services.*")
      public void testValidatesServicesNotNull()
      {
          new Services("testing", null);
      }
  }
  