Better unit test assertion.
diff --git a/src/test/java/org/apache/commons/collections4/properties/EmptyPropertiesTest.java b/src/test/java/org/apache/commons/collections4/properties/EmptyPropertiesTest.java
index d5723ad..c70173c 100644
--- a/src/test/java/org/apache/commons/collections4/properties/EmptyPropertiesTest.java
+++ b/src/test/java/org/apache/commons/collections4/properties/EmptyPropertiesTest.java
@@ -266,12 +266,12 @@
                 try (PrintStream out = new PrintStream(expected)) {
                     PropertiesFactory.INSTANCE.createProperties().save(out, comments);
                 }
-                assertArrayEquals(expected.toByteArray(), actual.toByteArray());
+                assertArrayEquals(expected.toByteArray(), actual.toByteArray(), () -> new String(expected.toByteArray()));
                 expected.reset();
                 try (PrintStream out = new PrintStream(expected)) {
                     new Properties().save(out, comments);
                 }
-                assertArrayEquals(expected.toByteArray(), actual.toByteArray());
+                assertArrayEquals(expected.toByteArray(), actual.toByteArray(), () -> new String(expected.toByteArray()));
             }
         }
     }