### Question:
Loggers { public static Logger verboseLogger() { return VERBOSE_ANDROID_LOGGER; } private  Loggers(); static Logger empty(); static Logger verboseLogger(); static Logger infoLogger(); static Logger warningLogger();  }### Answer:
@Test public void loggersReturnsVerboseInstance() { Logger logger = Loggers.verboseLogger(); assertThat(logger, instanceOf(VerboseAndroidLogger.class)); }
@Test public void verboseLoggerReturnsSameInstance() { Logger logger1 = Loggers.verboseLogger(); Logger logger2 = Loggers.verboseLogger(); assertThat(logger1, sameInstance(logger2)); }