ijuma commented on a change in pull request #9566:
URL: https://github.com/apache/kafka/pull/9566#discussion_r524738967



##########
File path: clients/src/test/java/org/apache/kafka/common/UuidTest.java
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@@ -21,50 +21,50 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotEquals;
 
-public class UUIDTest {
+public class UuidTest {
 
     @Test
     public void testSignificantBits() {
-        UUID id = new UUID(34L, 98L);
+        Uuid id = new Uuid(34L, 98L);
 
         assertEquals(id.getMostSignificantBits(), 34L);
         assertEquals(id.getLeastSignificantBits(), 98L);
     }
 
     @Test
-    public void testUUIDEquality() {
-        UUID id1 = new UUID(12L, 13L);
-        UUID id2 = new UUID(12L, 13L);
-        UUID id3 = new UUID(24L, 38L);
+    public void testUuidEquality() {

Review comment:
       We don't have to specify it, but it would be good to ensure we have a 
test for the actual hashCode we're implementing. At the moment, we are only 
verifying that the hashCode is the same for two equal UUIDs and different for 
two unequal UUIDs. One option would be to have a few tests where we verify that 
the result is what we expect it to be.




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