public void testClearRemovesMDCValue() {
ThreadContext log4jThreadContext = ThreadContext.newMDCEnabledContext();
Hashtable mdcContext = MDC.getContext();
assertNull(mdcContext);
final String testKey = "painter";
log4jThreadContext.put(testKey, 7);
mdcContext = MDC.getContext();
assertEquals(1, mdcContext.size());
log4jThreadContext.clear();
assertEquals(0, mdcContext.size());
assertNull("get() after clear should return null", log4jThreadContext.get(testKey));
}
