diff --git a/lib/test-db-mongo.js b/lib/test-db-mongo.js
index f3596e1..1334baa 100644
--- a/lib/test-db-mongo.js
+++ b/lib/test-db-mongo.js
@@ -102,12 +102,12 @@ module.exports = ({
                 : propsMatch(docs, searchedProps)
               )
             )
-            assert.deepEqual(notExist, [], `${dbName}.${colName}: missing mandatory entries`)
+            assert.deepEqual(notExist, [], `${dbName}.${colName}: mustExist assertion - missing mandatory entries in db`)
         }
 
         if (mustEql.length) {
             const notEqual = mustEql.filter((searchedProps) => !propsMatch(docs, searchedProps))
-            assert.deepEqual(notEqual, [], `${dbName}.${colName}: mutated or missing entries`)
+            assert.deepEqual(notEqual, [], `${dbName}.${colName}: mustEql assertion - entries mutated or missing in db`)
         }
       }),
   } = {}) => cols[colName] || (cols[colName] = {