package org.slf4j.dummyExt; import junit.framework.TestCase; import org.slf4j.MDC; import org.slf4j.ext.MDCStrLookup; public class MDCStrLookupTest extends TestCase { public MDCStrLookupTest(String name) { super(name); } public void setUp() throws Exception { super.setUp(); } public void tearDown() throws Exception { super.tearDown(); } public void testLookup() throws Exception { MDC.put("key", "value"); MDC.put("number", "2"); MDCStrLookup lookup = new MDCStrLookup(); assertEquals("value", lookup.lookup("key")); assertEquals("2", lookup.lookup("number")); assertEquals(null, lookup.lookup(null)); assertEquals(null, lookup.lookup("")); assertEquals(null, lookup.lookup("other")); } }