Package org.mockito.internal.creation.bytebuddy

Class SubclassByteBuddyMockMaker

java.lang.Object
org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker
All Implemented Interfaces:
MockMaker
public class SubclassByteBuddyMockMaker extends Object
Subclass based mock maker. This mock maker tries to create a subclass to represent a mock. It uses the given mock settings, that contains the type to mock, extra interfaces, and serialization support.

The type to mock has to be not final and not part of the JDK. The created mock will implement extra interfaces if any. And will implement Serializable if this settings is explicitly set.

  • Constructor Details

    • SubclassByteBuddyMockMaker

      public SubclassByteBuddyMockMaker()

    • SubclassByteBuddyMockMaker

      public SubclassByteBuddyMockMaker(SubclassLoader loader)

  • Method Details

    • createMock

      public <T> T createMock(MockCreationSettings<T> settings, MockHandler handler)
      Description copied from interface: MockMaker
      If you want to provide your own implementation of MockMaker this method should:
      • Create a proxy object that implements settings.typeToMock and potentially also settings.extraInterfaces.
      • You may use the information from settings to create/configure your proxy object.
      • Your proxy object should carry the handler with it. For example, if you generate byte code to create the proxy you could generate an extra field to keep the handler with the generated object. Your implementation of MockMaker is required to provide this instance of handler when MockMaker.getHandler(Object) is called.
      Specified by:
      createMock in interface MockMaker
      Type Parameters:
      T - Type of the mock to return, actually the settings.getTypeToMock.
      Parameters:
      settings - Mock creation settings like type to mock, extra interfaces and so on.
      handler - See MockHandler. Do not provide your own implementation at this time. Make sure your implementation of MockMaker.getHandler(Object) will return this instance.
      Returns:
      The mock instance.

    • createMockType

      public <T> Class<? extends T> createMockType(MockCreationSettings<T> settings)

    • getHandler

      public MockHandler getHandler(Object mock)
      Description copied from interface: MockMaker
      Returns the handler for the mock. Do not provide your own implementations at this time because the work on the MockHandler api is not completed. Use the instance provided to you by Mockito at MockMaker.createMock(org.mockito.mock.MockCreationSettings<T>, org.mockito.invocation.MockHandler) or MockMaker.resetMock(java.lang.Object, org.mockito.invocation.MockHandler, org.mockito.mock.MockCreationSettings).
      Specified by:
      getHandler in interface MockMaker
      Parameters:
      mock - The mock instance.
      Returns:
      The mock handler, but may return null - it means that there is no handler attached to provided object. This means the passed object is not really a Mockito mock.

    • resetMock

      public void resetMock(Object mock, MockHandler newHandler, MockCreationSettings settings)
      Description copied from interface: MockMaker
      Replaces the existing handler on mock with newHandler.

      The invocation handler actually store invocations to achieve stubbing and verification. In order to reset the mock, we pass a new instance of the invocation handler.

      Your implementation should make sure the newHandler is correctly associated to passed mock

      Specified by:
      resetMock in interface MockMaker
      Parameters:
      mock - The mock instance whose invocation handler is to be replaced.
      newHandler - The new invocation handler instance.
      settings - The mock settings - should you need to access some of the mock creation details.

    • isTypeMockable

      public MockMaker.TypeMockability isTypeMockable(Class<?> type)
      Description copied from interface: MockMaker
      Indicates if the given type can be mocked by this mockmaker.

      Mockmaker may have different capabilities in term of mocking, typically Mockito 1.x's internal mockmaker cannot mock final types. Other implementations, may have different limitations.

      Specified by:
      isTypeMockable in interface MockMaker
      Parameters:
      type - The type inspected for mockability.
      Returns:
      object that carries the information about mockability of given type.

    • clearAllCaches

      public void clearAllCaches()
      Description copied from interface: MockMaker
      Clears all cashes for mocked types and removes all byte code alterations, if possible.
      Specified by:
      clearAllCaches in interface MockMaker