test-logger.xml

<configuration>
    <conversionRule conversionWord="coloredLevel" converterClass="play.api.Logger$ColoredLevel" />
    <logger name="application" level="INFO">
        <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
            <encoder>
                <pattern>%coloredLevel %logger{15} - %message%n%xException{5}</pattern>
            </encoder>
        </appender>
    </logger>
</configuration>