Add test assertion
diff --git a/src/test/java/org/apache/commons/io/input/ChecksumInputStreamTest.java b/src/test/java/org/apache/commons/io/input/ChecksumInputStreamTest.java
index 94290bc..65e6f73 100644
--- a/src/test/java/org/apache/commons/io/input/ChecksumInputStreamTest.java
+++ b/src/test/java/org/apache/commons/io/input/ChecksumInputStreamTest.java
@@ -145,8 +145,7 @@
.get()) {
// @formatter:on
assertEquals(0, checksum.getByteCount());
- @SuppressWarnings("unused")
- final int intOne = checksum.read(byteArray);
+ assertEquals(4, checksum.read(byteArray));
assertEquals(byteArray.length, checksum.getByteCount());
assertEquals(29, checksum.getRemaining());
final long skipReturnValue = checksum.skip((byte) 1);