### Question:
OSGiLogger extends MarkerIgnoringBase { @Override public void debug(String msg) { internalLog(LogService.LOG_DEBUG, msg, null); }  @Override boolean isTraceEnabled(); @Override void trace(String msg); @Override void trace(String format, Object arg); @Override void trace(String format, Object arg1, Object arg2); @Override void trace(String format, Object[] argArray); @Override void trace(String msg, Throwable t); @Override boolean isDebugEnabled(); @Override void debug(String msg); @Override void debug(String format, Object arg); @Override void debug(String format, Object arg1, Object arg2); @Override void debug(String format, Object[] argArray); @Override void debug(String msg, Throwable t); @Override boolean isInfoEnabled(); @Override void info(String msg); @Override void info(String format, Object arg); @Override void info(String format, Object arg1, Object arg2); @Override void info(String format, Object[] argArray); @Override void info(String msg, Throwable t); @Override boolean isWarnEnabled(); @Override void warn(String msg); @Override void warn(String format, Object arg); @Override void warn(String format, Object arg1, Object arg2); @Override void warn(String format, Object[] argArray); @Override void warn(String msg, Throwable t); @Override boolean isErrorEnabled(); @Override void error(String msg); @Override void error(String format, Object arg); @Override void error(String format, Object arg1, Object arg2); @Override void error(String format, Object[] argArray); @Override void error(String msg, Throwable t);  }### Answer:
@Test public void testNoOsgiAvailable() { OSGILogFactory.initOSGI(null); Logger log = LoggerFactory.getLogger(OSGiLoggerTest.class); log.debug("test"); }