package mockit;
   
   import static java.util.Arrays.asList;
   
   import static org.junit.jupiter.api.Assertions.assertEquals;
   import static org.junit.jupiter.api.Assertions.assertFalse;
   
   import java.util.ArrayList;
   import java.util.HashSet;
  import java.util.List;
  import java.util.Set;
  
  import javax.enterprise.inject.Instance;
  import javax.inject.Inject;
  
  import org.junit.jupiter.api.Test;
  
  /**
   * The Class InstanceDITest.
   */
  final class InstanceDITest {
  
      /**
       * The Class Collaborator.
       */
      static class Collaborator {
      }
  
      /**
       * The Class TestedClassWithInstanceInjectionPoints.
       */
      static final class TestedClassWithInstanceInjectionPoints {
  
          /** The names. */
          final Set<String> names;
  
          /** The collaborators. */
          @Inject
          Instance<Collaborator> collaborators;
  
          /**
           * Instantiates a new tested class with instance injection points.
           *
           * @param names
           *            the names
           */
          @Inject
          TestedClassWithInstanceInjectionPoints(Instance<String> names) {
              this.names = new HashSet<>();
  
              for (String name : names) {
                  this.names.add(name);
              }
          }
      }
  
      /** The tested. */
      @Tested
      TestedClassWithInstanceInjectionPoints tested;
  
      /** The col 1. */
      @Injectable
      Collaborator col1;
  
      /** The col 2. */
      @Injectable
      Collaborator col2;
  
      /** The names. */
      @Injectable
      final Iterable<String> names = asList("Abc", "Test", "123");
  
      /**
       * Allow multiple injectables of same type to be obtained from instance injection point.
       */
      @Test
      void allowMultipleInjectablesOfSameTypeToBeObtainedFromInstanceInjectionPoint() {
          assertEquals(new HashSet<>(asList("Abc", "Test", "123")), tested.names);
  
          Instance<Collaborator> collaborators = tested.collaborators;
          assertFalse(collaborators.isAmbiguous());
          assertFalse(collaborators.isUnsatisfied());
  
          List<Collaborator> collaboratorInstances = toList(collaborators);
          assertEquals(asList(col1, col2), collaboratorInstances);
      }
  
      /**
       * To list.
       *
       * @param <T>
       *            the generic type
       * @param instances
       *            the instances
       *
       * @return the list
       */
      static <T> List<T> toList(Iterable<T> instances) {
          List<T> list = new ArrayList<>();
 
         for (T instance : instances) {
             list.add(instance);
         }
 
         return list;
     }
 }