/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements. See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership. The ASF licenses this file
    * to you 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 org.apache.commons.weaver.utils;
  
  import static org.junit.Assert.assertThat;
  
  import java.util.Arrays;
  
  import org.apache.commons.weaver.Consumes;
  import org.apache.commons.weaver.Produces;
  import org.apache.commons.weaver.lifecycle.WeaveLifecycleToken;
  import org.apache.commons.weaver.spi.WeaveLifecycleProvider;
  import org.apache.commons.weaver.spi.Weaver;
  import org.hamcrest.collection.IsIterableContainingInOrder;
  import org.junit.Test;
  
  public class ProvidersTest {
  
      @Test(expected = NullPointerException.class)
      public void testSortNull() {
          Providers.sort(null);
      }
  
      @Test(expected = IllegalArgumentException.class)
      public void testSortNullElement() {
          Providers.sort(Arrays.asList((Weaver) null));
      }
  
      public interface FauxWeaveProvider extends WeaveLifecycleProvider<WeaveLifecycleToken.Weave> {
      }
  
      public class A implements FauxWeaveProvider {
      }
  
      @Consumes(A.class)
      @Produces(C.class)
      public class B implements FauxWeaveProvider {
      }
  
      public class C implements FauxWeaveProvider {
      }
  
      @Consumes(X.class)
      public class W implements FauxWeaveProvider {
      }
  
      @Consumes(Y.class)
      public class X implements FauxWeaveProvider {
      }
  
      public class Y implements FauxWeaveProvider {
      }
  
      @Produces(Y.class)
      public class Z implements FauxWeaveProvider {
      }
  
      @Consumes(Y.class)
      @Produces(Z.class)
      public class Monkeywrench implements FauxWeaveProvider {
      }
  
      private FauxWeaveProvider a = new A(), b = new B(), c = new C(), w = new W(), x = new X(), y = new Y(), z = new Z(),
                      monkeywrench = new Monkeywrench();
  
      @Test
      public void testSort() {
          assertThat(Providers.sort(Arrays.asList(b, a, c)), IsIterableContainingInOrder.contains(a, b, c));
          assertThat(Providers.sort(Arrays.asList(y, w, x, z)), IsIterableContainingInOrder.contains(z, y, x, w));
      }
  
      @Test(expected = IllegalStateException.class)
      public void testCircularSort() {
          Providers.sort(Arrays.asList(y, z, monkeywrench));
      }
  
  }