diff --git a/src/test/org/apache/commons/logging/AbstractLogTest.java b/src/test/org/apache/commons/logging/AbstractLogTest.java
index 2921861..ae600c4 100644
--- a/src/test/org/apache/commons/logging/AbstractLogTest.java
+++ b/src/test/org/apache/commons/logging/AbstractLogTest.java
@@ -86,25 +86,49 @@ public abstract class AbstractLogTest extends TestCase {
 		
 		assertNotNull(log);
 		
+		log.debug(null);
+		
+		log.debug(null, null);
+		
 		log.debug("debug statement");
 		
 		log.debug("debug statement w/ null exception", new RuntimeException());
 		
+		log.error(null);
+		
+		log.error(null, null);
+		
 		log.error("error statement");
 		
 		log.error("error statement w/ null exception", new RuntimeException());
 		
+		log.fatal(null);
+		
+		log.fatal(null, null);
+		
 		log.fatal("fatal statement");
 		
 		log.fatal("fatal statement w/ null exception", new RuntimeException());
 		
+		log.info(null);
+		
+		log.info(null, null);
+		
 		log.info("info statement");
 		
 		log.info("info statement w/ null exception", new RuntimeException());
 		
+		log.trace(null);
+		
+		log.trace(null, null);
+		
 		log.trace("trace statement");
 		
 		log.trace("trace statement w/ null exception", new RuntimeException());
+
+		log.warn(null);
+		
+		log.warn(null, null);
 		
 		log.warn("warn statement");