logback_test.xml

<configuration>
    <property name="ident" value="example" scope="context" />

    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} %property{ident}[%property{pid}]: [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
        <target>System.err</target>

        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>INFO</level>
        </filter>
    </appender>

    <appender name="trace" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} %property{ident}[%property{pid}]: [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
        <target>System.err</target>

        <filter class="com.spotify.logging.logback.LevelRangeFilter">
            <levelMin>TRACE</levelMin>
            <levelMax>INFO</levelMax>
        </filter>
    </appender>

    <!--<root level="trace">-->
    <root level="all">
        <appender-ref ref="console"/>
        <appender-ref ref="trace"/>
    </root>
</configuration>