src/test/resources/logback-test.xml

<configuration scan="true" debug="false">
  <appender name="FILE" class="ch.qos.logback.core.FileAppender">
    <file>${basedir}/onos-logs/test.log</file>
    <encoder>
      <pattern>%date %level [%thread] %logger{10} [%file:%line] %msg%n</pattern>
      <immediateFlush>false</immediateFlush>
    </encoder>
  </appender>

  <logger name="org" level="WARN"/>
  <logger name="LogService" level="WARN"/> <!-- Restlet access logging -->
  <logger name="net.floodlightcontroller.logging" level="WARN"/>
  <logger name="com.hazelcast" level="WARN"/>

  <root level="TRACE">
    <appender-ref ref="FILE" />
  </root>
</configuration>