assert error message is more verbose

annotation/src/test/java/lcsb/mapviewer/annotation/services/ModelAnnotatorTest.java

@@ -251,7 +251,7 @@ public class ModelAnnotatorTest extends AnnotationTestFunctions {
 			Reaction reaction = new Reaction();
 			reaction.addMiriamData(new MiriamData(MiriamType.PUBMED, "12345"));
 			List<ImproperAnnotations> result = modelAnnotator.findImproperAnnotations(reaction, list);
-			assertEquals(0, result.size());
+			assertEquals("Unexpected improper annotations found: "+result, 0, result.size());
 		} catch (Exception e) {
 			e.printStackTrace();
 			throw e;