/*
    * Copyright (c) 2006 JMockit developers
    * This file is subject to the terms of the MIT license (see LICENSE.txt).
    */
   package mockit;
   
   import static org.junit.jupiter.api.Assertions.assertEquals;
   import static org.junit.jupiter.api.Assertions.assertNotSame;
   import static org.junit.jupiter.api.Assertions.assertSame;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  class MockUpForSingleInterfaceInstanceTest {
  
      /** The logger. */
      private static final Logger logger = LoggerFactory.getLogger(MockUpForSingleInterfaceInstanceTest.class);
  
      public interface APublicInterface {
          int getNumericValue();
  
          String getTextValue();
  
          int getSomeOtherValue();
      }
  
      @Test
      void multipleMockUpInstancesForAPublicInterfaceWithASingleMockInstanceEach() {
          final class AnInterfaceMockUp extends MockUp<APublicInterface> {
              private final int number;
              private final String text;
  
              AnInterfaceMockUp(int number, String text) {
                  this.number = number;
                  this.text = text;
              }
  
              @Mock
              int getNumericValue() {
                  return number;
              }
  
              @Mock
              String getTextValue() {
                  return text;
              }
          }
  
          MockUp<APublicInterface> mockUp1 = new AnInterfaceMockUp(1, "one");
          APublicInterface mock1 = mockUp1.getMockInstance();
  
          AnInterfaceMockUp mockUp2 = new AnInterfaceMockUp(2, "two");
          APublicInterface mock2 = mockUp2.getMockInstance();
  
          assertNotSame(mock1, mock2);
          assertSame(mock1.getClass(), mock2.getClass());
          assertEquals(1, mock1.getNumericValue());
          assertEquals("one", mock1.getTextValue());
          // TODO 12/12/2023 yukkes The FieldInjection class has changed and the default value is not set.
          // assertEquals(0, mock1.getSomeOtherValue());
          assertEquals(2, mock2.getNumericValue());
          assertEquals("two", mock2.getTextValue());
          // assertEquals(0, mock2.getSomeOtherValue());
      }
  
      @Test
      void multipleMockUpInstancesForPublicInterfacePassingInterfaceToMockUpConstructor() {
          final class AnInterfaceMockUp extends MockUp<APublicInterface> {
              private final int number;
  
              AnInterfaceMockUp(int number) {
                  super(APublicInterface.class);
                  this.number = number;
              }
  
              @Mock
              int getNumericValue() {
                  return number;
              }
          }
  
          MockUp<APublicInterface> mockUp1 = new AnInterfaceMockUp(1);
          APublicInterface mock1 = mockUp1.getMockInstance();
  
          AnInterfaceMockUp mockUp2 = new AnInterfaceMockUp(2);
          APublicInterface mock2 = mockUp2.getMockInstance();
  
          assertNotSame(mock1, mock2);
          assertSame(mock1.getClass(), mock2.getClass());
          assertEquals(1, mock1.getNumericValue());
          assertEquals(2, mock2.getNumericValue());
      }
  
      @Test
     @Timeout(500)
     @SuppressWarnings("MethodWithMultipleLoops")
     void instantiateSameMockUpForPublicInterfaceManyTimesButApplyOnlyOnce() {
         class InterfaceMockUp extends MockUp<APublicInterface> {
             final int value;
 
             InterfaceMockUp(int value) {
                 this.value = value;
             }
 
             @Mock
             int getNumericValue() {
                 return value;
             }
         }
 
         int n = 10000;
         List<APublicInterface> mocks = new ArrayList<>(n);
         Class<?> implementationClass = null;
 
         for (int i = 0; i < n; i++) {
             if (Thread.interrupted()) {
                 logger.info("a) Interrupted at i = {}", i);
                 return;
             }
 
             APublicInterface mockInstance = new InterfaceMockUp(i).getMockInstance();
             Class<?> mockInstanceClass = mockInstance.getClass();
 
             if (implementationClass == null) {
                 implementationClass = mockInstanceClass;
             } else {
                 assertSame(implementationClass, mockInstanceClass);
             }
 
             mocks.add(mockInstance);
         }
 
         for (int i = 0; i < n; i++) {
             if (Thread.interrupted()) {
                 logger.info("b) Interrupted at i = {}", i);
                 return;
             }
 
             APublicInterface mockInstance = mocks.get(i);
             assertEquals(i, mockInstance.getNumericValue());
         }
     }
 
     interface ANonPublicInterface {
         int getValue();
     }
 
     @Test
     void multipleMockUpInstancesForANonPublicInterfaceWithASingleMockInstanceEach() {
         class AnotherInterfaceMockUp extends MockUp<ANonPublicInterface> implements ANonPublicInterface {
             private final int value;
 
             AnotherInterfaceMockUp(int value) {
                 this.value = value;
             }
 
             @Override
             @Mock
             public int getValue() {
                 return value;
             }
         }
 
         MockUp<ANonPublicInterface> mockUp1 = new AnotherInterfaceMockUp(1);
         ANonPublicInterface mock1 = mockUp1.getMockInstance();
 
         AnotherInterfaceMockUp mockUp2 = new AnotherInterfaceMockUp(2);
         ANonPublicInterface mock2 = mockUp2.getMockInstance();
 
         assertNotSame(mock1, mock2);
         assertSame(mock1.getClass(), mock2.getClass());
         assertEquals(1, mock1.getValue());
         assertEquals(2, mock2.getValue());
     }
 
     @Test
     void applyDifferentMockUpsToSameInterface() {
         APublicInterface mock1 = new MockUp<APublicInterface>() {
             @Mock
             String getTextValue() {
                 return "test";
             }
         }.getMockInstance();
 
         APublicInterface mock2 = new MockUp<APublicInterface>() {
             @Mock
             int getNumericValue() {
                 return 123;
             }
         }.getMockInstance();
 
         assertEquals("test", mock1.getTextValue());
         // TODO 12/12/2023 yukkes The FieldInjection class has changed and the default value is not set.
         // assertEquals(0, mock1.getNumericValue());
         assertEquals(123, mock2.getNumericValue());
         // assertNull(mock2.getTextValue());
     }
 
     @Test
     void applyMockUpWithGivenInterfaceInstance() {
         APublicInterface realInstance = new APublicInterface() {
             @Override
             public int getNumericValue() {
                 return 1;
             }
 
             @Override
             public String getTextValue() {
                 return "test";
             }
 
             @Override
             public int getSomeOtherValue() {
                 return 2;
             }
         };
 
         MockUp<APublicInterface> mockUp = new MockUp<APublicInterface>(realInstance) {
             @Mock
             int getNumericValue() {
                 return 3;
             }
         };
 
         APublicInterface mockInstance = mockUp.getMockInstance();
         assertSame(realInstance, mockInstance);
 
         assertEquals(2, realInstance.getSomeOtherValue());
         assertEquals(3, mockInstance.getNumericValue());
     }
 }