src/test/java/org/mockito/junit/TestableJUnitRunner.java

package org.mockito.junit;

import org.junit.runners.model.InitializationError;
import org.mockito.internal.junit.MismatchReportingTestListener;
import org.mockito.internal.junit.MockitoTestListener;
import org.mockito.internal.runners.RunnerFactory;
import org.mockito.internal.runners.StrictRunner;
import org.mockito.internal.util.SimpleMockitoLogger;
import org.mockito.internal.util.Supplier;

import java.lang.reflect.InvocationTargetException;

public class TestableJUnitRunner extends MockitoJUnitRunner {

    private final static ThreadLocal<SimpleMockitoLogger> LOGGER = new ThreadLocal<SimpleMockitoLogger>() {
        protected SimpleMockitoLogger initialValue() {
            return new SimpleMockitoLogger();
        }
    };

    public TestableJUnitRunner(Class<?> klass) throws InvocationTargetException, InitializationError {
        super(new StrictRunner(new RunnerFactory().create(klass, new Supplier<MockitoTestListener>() {
            public MockitoTestListener get() {
                return new MismatchReportingTestListener(LOGGER.get());
            }
        }), klass));
    }

    public static SimpleMockitoLogger refreshedLogger() {
        return LOGGER.get().clear();
    }
}