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diff --git a/opendaylight/config/logback-config/src/test/java/org/opendaylight/controller/config/yang/logback/config/ContextSetterImplTest.java b/opendaylight/config/logback-config/src/test/java/org/opendaylight/controller/config/yang/logback/config/ContextSetterImplTest.java
new file mode 100644
index 0000000000..7ba7a24d48
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+++ b/opendaylight/config/logback-config/src/test/java/org/opendaylight/controller/config/yang/logback/config/ContextSetterImplTest.java
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.config.yang.logback.config;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.List;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.opendaylight.controller.config.api.DependencyResolver;
+import org.opendaylight.controller.config.api.ModuleIdentifier;
+import org.slf4j.LoggerFactory;
+
+import ch.qos.logback.classic.LoggerContext;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.Appender;
+
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Multimap;
+
+public class ContextSetterImplTest {
+
+    @Mock
+    private LogbackRuntimeRegistrator runtimeRegistratorMock;
+    @Mock
+    private DependencyResolver dependencyResolverMock;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+        LogbackRuntimeRegistration reg = mock(LogbackRuntimeRegistration.class);
+        doReturn(reg).when(runtimeRegistratorMock).register(
+                any(LogbackRuntimeMXBean.class));
+    }
+
+    @Test
+    public void testUpdate() throws Exception {
+        Multimap<String, String> loggersToAppenders = HashMultimap.create();
+        loggersToAppenders.put("l1", "a1");
+        loggersToAppenders.put("l1", "a2");
+        createContextSetter(loggersToAppenders);
+
+        assertLoggerWithAppenders("l1", "a1", "a2");
+    }
+
+    @Test
+    public void testUpdateTwice() throws Exception {
+        Multimap<String, String> loggersToAppenders = HashMultimap.create();
+        loggersToAppenders.put("l1", "a1");
+        loggersToAppenders.put("l1", "a2");
+        createContextSetter(loggersToAppenders);
+
+        loggersToAppenders.clear();
+        loggersToAppenders.put("l1", "a3");
+        loggersToAppenders.put("l1", "a2");
+        loggersToAppenders.put("l1", "a4");
+        createContextSetter(loggersToAppenders);
+
+        assertLoggerWithAppenders("l1", "a2", "a3", "a4");
+    }
+
+    @Test
+    public void testKeepOtherLoggers() throws Exception {
+        Multimap<String, String> loggersToAppenders = HashMultimap.create();
+        loggersToAppenders.put("l1", "a1");
+        loggersToAppenders.put("l1", "a2");
+        loggersToAppenders.put("l2", "a22");
+        createContextSetter(loggersToAppenders);
+
+        loggersToAppenders.clear();
+        loggersToAppenders.put("l1", "a3");
+        createContextSetter(loggersToAppenders);
+
+        assertLoggerWithAppenders("l1", "a3");
+        assertLoggerWithAppenders("l2", "a22");
+    }
+
+    private void createContextSetter(Multimap<String, String> loggersToAppenders) {
+        ContextSetterImpl setter = new ContextSetterImpl(runtimeRegistratorMock);
+
+        List<LoggerTO> logger = Lists.newArrayList();
+        List<ConsoleAppenderTO> consoleAppenders = Lists.newArrayList();
+
+        for (String loggerName : loggersToAppenders.keySet()) {
+            LoggerTO l1 = createLogger(loggerName,
+                    loggersToAppenders.get(loggerName));
+            logger.add(l1);
+            for (String appenderName : loggersToAppenders.get(loggerName)) {
+                consoleAppenders.add(createConsoleAppender(appenderName));
+            }
+
+        }
+
+        LogbackModule logbackModule = createLogbackModule(logger,
+                consoleAppenders);
+        setter.updateContext(logbackModule);
+    }
+
+    private void assertLoggerWithAppenders(String name, String... appenders) {
+        LoggerContext context = (LoggerContext) LoggerFactory
+                .getILoggerFactory();
+        ch.qos.logback.classic.Logger logger = context.getLogger(name);
+        Iterator<Appender<ILoggingEvent>> it = logger.iteratorForAppenders();
+
+        Multimap<String, Appender<?>> foundAppenders = HashMultimap.create();
+        while (it.hasNext()) {
+            final Appender<ILoggingEvent> app = it.next();
+            foundAppenders.put(app.getName(), app);
+        }
+
+        if (appenders.length == 0) {
+            assertEquals(0, foundAppenders.values().size());
+        }
+
+        for (String appender : appenders) {
+            boolean isPresent = foundAppenders.get(appender).isEmpty();
+            assertFalse(
+                    "Appender " + appender + " for logger " + name
+                            + " was not present, present appenders: "
+                            + foundAppenders.keys(), isPresent);
+        }
+
+    }
+
+    private LogbackModule createLogbackModule(List<LoggerTO> logger,
+            List<ConsoleAppenderTO> consoleAppenders) {
+        LogbackModule logbackModule = new LogbackModule(new ModuleIdentifier(
+                "fact", "first"), dependencyResolverMock);
+        logbackModule.setLoggerTO(logger);
+        logbackModule.setConsoleAppenderTO(consoleAppenders);
+        logbackModule.setRollingFileAppenderTO(Lists
+                .<RollingFileAppenderTO> newArrayList());
+        return logbackModule;
+    }
+
+    private LoggerTO createLogger(String name, Collection<String> appenders) {
+        LoggerTO l1 = new LoggerTO();
+        l1.setAppenders(Lists.newArrayList(appenders));
+        l1.setLoggerName(name);
+        l1.setLevel("INFO");
+        return l1;
+    }
+
+    private ConsoleAppenderTO createConsoleAppender(String name) {
+        ConsoleAppenderTO a = new ConsoleAppenderTO();
+        a.setName(name);
+        a.setEncoderPattern("%-4relative [%thread] %-5level %logger{35} - %msg%n");
+        return a;
+    }
+}