Full coverage for BEvent

src/main/java/beamline/events/BEvent.java

src/main/java/beamline/sources/CSVLogSource.java

src/main/java/beamline/sources/MQTTXesSource.java

src/main/java/beamline/sources/StringTestSource.java

src/main/java/beamline/sources/XesLogSource.java