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JMockit is a Java toolkit for developer (unit/integration) testing. It contains mocking APIs and other tools, supporting both JUnit and TestNG. The mocking APIs allow all kinds of Java code, without testability restrictions, to be tested in isolation from selected dependencies.

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/*
 * Copyright (c) 2006-2011 Rogério Liesenfeld
 * This file is subject to the terms of the MIT license (see LICENSE.txt).
 */
package mockit.integration.logging;

import mockit.*;
import org.slf4j.*;

/**
 * A mock class containing mocks and stubs for the SLF4j API.
 * 
 * When a test class is annotated as {@code @UsingMocksAndStubs(Slf4jMocks.class)}, all production
 * code touched by the tests in that class will receive mock {@code Logger} instances instead of
 * real ones, when one of the factory methods in class {@code org.slf4j.LoggerFactory} is called.
 * 
 * Tutorial
 */
@SuppressWarnings({"UnusedDeclaration"})
@MockClass(realClass = LoggerFactory.class, stubs = "getILoggerFactory")
public final class Slf4jMocks
{
   private static final Logger MOCK_LOGGER = Mockit.newEmptyProxy(Logger.class);

   private Slf4jMocks() {}

   /**
    * Returns a singleton mock {@code Logger} instance, whose methods do nothing.
    */
   @Mock public static Logger getLogger(String name) { return MOCK_LOGGER; }

   /**
    * Returns a singleton mock {@code Logger} instance, whose methods do nothing.
    */
   @Mock public static Logger getLogger(Class clazz) { return MOCK_LOGGER; }
}