package mockit;
   
   import static org.junit.jupiter.api.Assertions.assertEquals;
   import static org.junit.jupiter.api.Assertions.assertFalse;
   import static org.junit.jupiter.api.Assertions.assertSame;
   import static org.junit.jupiter.api.Assertions.assertThrows;
   import static org.junit.jupiter.api.Assertions.assertTrue;
   
   import mockit.internal.expectations.invocation.MissingInvocation;
  
  import org.junit.jupiter.api.Test;
  
  /**
   * The Class DynamicOnInstanceMockingTest.
   */
  final class DynamicOnInstanceMockingTest {
  
      /**
       * The Class Collaborator.
       */
      static class Collaborator {
  
          /** The value. */
          protected int value;
  
          /**
           * Instantiates a new collaborator.
           */
          Collaborator() {
              value = -1;
          }
  
          /**
           * Instantiates a new collaborator.
           *
           * @param value
           *            the value
           */
          Collaborator(int value) {
              this.value = value;
          }
  
          /**
           * Gets the value.
           *
           * @return the value
           */
          int getValue() {
              return value;
          }
  
          /**
           * Sets the value.
           *
           * @param value
           *            the new value
           */
          void setValue(int value) {
              this.value = value;
          }
      }
  
      /**
       * The Class AnotherDependency.
       */
      static class AnotherDependency {
  
          /**
           * Gets the name.
           *
           * @return the name
           */
          public String getName() {
              return "";
          }
      }
  
      /**
       * Mocking one instance and matching invocations only on that instance.
       */
      @Test
      void mockingOneInstanceAndMatchingInvocationsOnlyOnThatInstance() {
          Collaborator collaborator1 = new Collaborator();
          Collaborator collaborator2 = new Collaborator();
          final Collaborator collaborator3 = new Collaborator();
  
          new Expectations(collaborator3) {
              {
                  collaborator3.getValue();
                  result = 3;
              }
          };
  
          assertEquals(-1, collaborator1.getValue());
          assertEquals(-1, collaborator2.getValue());
          assertEquals(3, collaborator3.getValue());
          assertEquals(2, new Collaborator(2).getValue());
      }
  
     /**
      * Mocking two instances and matching invocations on each one.
      */
     @Test
     void mockingTwoInstancesAndMatchingInvocationsOnEachOne() {
         final Collaborator collaborator1 = new Collaborator();
         Collaborator collaborator2 = new Collaborator();
 
         new Expectations(collaborator1, collaborator2) {
             {
                 collaborator1.getValue();
                 result = 1;
             }
         };
 
         collaborator2.setValue(2);
         assertEquals(2, collaborator2.getValue());
         assertEquals(1, collaborator1.getValue());
         assertEquals(3, new Collaborator(3).getValue());
     }
 
     /**
      * Mocking one instance but recording on another.
      */
     @Test
     void mockingOneInstanceButRecordingOnAnother() {
         Collaborator collaborator1 = new Collaborator();
         final Collaborator collaborator2 = new Collaborator();
         Collaborator collaborator3 = new Collaborator();
 
         new Expectations(collaborator1) {
             {
                 // A misuse of the API:
                 collaborator2.getValue();
                 result = -2;
             }
         };
 
         collaborator1.setValue(1);
         collaborator2.setValue(2);
         collaborator3.setValue(3);
         assertEquals(1, collaborator1.getValue());
         assertEquals(-2, collaborator2.getValue());
         assertEquals(3, collaborator3.getValue());
     }
 
     /**
      * The Class Foo.
      */
     public static class Foo {
 
         /**
          * Builds the value.
          *
          * @param s
          *            the s
          *
          * @return the foo
          */
         Foo buildValue(@SuppressWarnings("unused") String s) {
             return this;
         }
 
         /**
          * Do it.
          *
          * @return true, if successful
          */
         boolean doIt() {
             return false;
         }
 
         /**
          * Do it again.
          *
          * @return true, if successful
          */
         boolean doItAgain() {
             return false;
         }
 
         /**
          * Gets the bar.
          *
          * @return the bar
          */
         AnotherDependency getBar() {
             return null;
         }
     }
 
     /**
      * The Class SubFoo.
      */
     public static class SubFoo extends Foo {
     }
 
     /**
      * Record duplicate invocation on two dynamic mocks of different types but shared base class.
      */
     @Test
     void recordDuplicateInvocationOnTwoDynamicMocksOfDifferentTypesButSharedBaseClass() {
         final Foo f1 = new Foo();
         final SubFoo f2 = new SubFoo();
 
         new Expectations(f1, f2) {
             {
                 f1.doIt();
                 result = true;
                 f2.doIt();
                 result = false;
             }
         };
 
         assertTrue(f1.doIt());
         assertFalse(f2.doIt());
         assertFalse(new Foo().doIt());
         assertFalse(new SubFoo().doIt());
     }
 
     /**
      * Verify method invocation count on mocked and non mocked instances.
      */
     @Test
     void verifyMethodInvocationCountOnMockedAndNonMockedInstances() {
         final Foo foo1 = new Foo();
         final Foo foo2 = new Foo();
 
         new Expectations(foo1, foo2) {
             {
                 foo1.doIt();
                 result = true;
             }
         };
 
         assertTrue(foo1.doIt());
         assertFalse(foo2.doItAgain());
         assertFalse(foo2.doIt());
         final Foo foo3 = new Foo();
         assertFalse(foo1.doItAgain());
         assertFalse(foo3.doItAgain());
         assertFalse(foo3.doIt());
         assertFalse(foo3.doItAgain());
 
         new Verifications() {
             {
                 assertFalse(foo2.doIt());
                 times = 1;
                 assertFalse(foo1.doItAgain());
                 times = 1;
                 assertFalse(foo3.doItAgain());
                 times = 2;
             }
         };
     }
 
     /**
      * Creates the cascaded mock from partially mocked instance.
      */
     @Test
     void createCascadedMockFromPartiallyMockedInstance() {
         final Foo foo = new Foo();
 
         new Expectations(foo) {
             {
                 foo.getBar().getName();
                 result = "cascade";
             }
         };
 
         assertEquals("cascade", foo.getBar().getName());
     }
 
     /**
      * Use available mocked instance as cascade from partially mocked instance.
      *
      * @param bar
      *            the bar
      */
     @Test
     void useAvailableMockedInstanceAsCascadeFromPartiallyMockedInstance(@Mocked AnotherDependency bar) {
         final Foo foo = new Foo();
 
         new Expectations(foo) {
             {
                 foo.getBar().getName();
                 result = "cascade";
             }
         };
 
         AnotherDependency cascadedBar = foo.getBar();
         assertSame(bar, cascadedBar);
         assertEquals("cascade", cascadedBar.getName());
     }
 
     /**
      * The Class Bar.
      */
     static final class Bar extends AnotherDependency {
     }
 
     /**
      * Use available mocked subclass instance as cascade from partially mocked instance.
      *
      * @param bar
      *            the bar
      */
     @Test
     void useAvailableMockedSubclassInstanceAsCascadeFromPartiallyMockedInstance(@Mocked Bar bar) {
         final Foo foo = new Foo();
 
         new Expectations(foo) {
             {
                 foo.getBar().getName();
                 result = "cascade";
             }
         };
 
         AnotherDependency cascadedBar = foo.getBar();
         assertSame(bar, cascadedBar);
         assertEquals("cascade", cascadedBar.getName());
     }
 
     /**
      * Use itself as cascade from partially mocked instance.
      */
     @Test
     void useItselfAsCascadeFromPartiallyMockedInstance() {
         final Foo foo = new Foo();
 
         new Expectations(foo) {
             {
                 foo.buildValue(anyString).doIt();
                 result = true;
             }
         };
 
         Foo cascadedFoo = foo.buildValue("test");
         assertSame(foo, cascadedFoo);
         assertTrue(cascadedFoo.doIt());
     }
 
     /**
      * Verify single invocation to mocked instance with additional invocation to same method on another instance.
      */
     @Test
     void verifySingleInvocationToMockedInstanceWithAdditionalInvocationToSameMethodOnAnotherInstance() {
         final Collaborator mocked = new Collaborator();
 
         new Expectations(mocked) {
         };
 
         Collaborator notMocked = new Collaborator();
         assertEquals(-1, notMocked.getValue());
         assertEquals(-1, mocked.getValue());
 
         new Verifications() {
             {
                 mocked.getValue();
                 times = 1;
             }
         };
     }
 
     /**
      * Verify ordered invocations to dynamically mocked instance with another instance involved but missing an
      * invocation.
      */
     @Test
     void verifyOrderedInvocationsToDynamicallyMockedInstanceWithAnotherInstanceInvolvedButMissingAnInvocation() {
         assertThrows(MissingInvocation.class, () -> {
             final Collaborator mock = new Collaborator();
 
             new Expectations(mock) {
             };
 
             mock.setValue(1);
             new Collaborator().setValue(2);
 
             new VerificationsInOrder() {
                 {
                     mock.setValue(1);
                     times = 1;
                     mock.setValue(2);
                     times = 1; // must be missing
                 }
             };
         });
     }
 
     /**
      * Verify ordered invocations to dynamically mocked instance with another instance involved.
      */
     @Test
     void verifyOrderedInvocationsToDynamicallyMockedInstanceWithAnotherInstanceInvolved() {
         final Collaborator mock = new Collaborator();
 
         new Expectations(mock) {
             {
                 mock.setValue(anyInt);
             }
         };
 
         mock.setValue(1);
         new Collaborator().setValue(2);
 
         new VerificationsInOrder() {
             {
                 mock.setValue(1);
                 times = 1;
                 mock.setValue(2);
                 times = 0;
             }
         };
     }
 }