clolov commented on code in PR #12492:
URL: https://github.com/apache/kafka/pull/12492#discussion_r946814408


##########
streams/src/test/java/org/apache/kafka/streams/processor/internals/ClientUtilsTest.java:
##########
@@ -108,75 +110,73 @@ public class ClientUtilsTest {
 
     @Test
     public void 
fetchCommittedOffsetsShouldRethrowKafkaExceptionAsStreamsException() {
-        final Consumer<byte[], byte[]> consumer = 
EasyMock.createMock(Consumer.class);
-        expect(consumer.committed(PARTITIONS)).andThrow(new KafkaException());
-        replay(consumer);
+        @SuppressWarnings("unchecked")
+        final Consumer<byte[], byte[]> consumer = mock(Consumer.class);
+        when(consumer.committed(PARTITIONS)).thenThrow(new KafkaException());
         assertThrows(StreamsException.class, () -> 
fetchCommittedOffsets(PARTITIONS, consumer));
     }
 
     @Test
     public void fetchCommittedOffsetsShouldRethrowTimeoutException() {
-        final Consumer<byte[], byte[]> consumer = 
EasyMock.createMock(Consumer.class);
-        expect(consumer.committed(PARTITIONS)).andThrow(new 
TimeoutException());
-        replay(consumer);
+        @SuppressWarnings("unchecked")
+        final Consumer<byte[], byte[]> consumer = mock(Consumer.class);
+        when(consumer.committed(PARTITIONS)).thenThrow(new TimeoutException());
         assertThrows(TimeoutException.class, () -> 
fetchCommittedOffsets(PARTITIONS, consumer));
     }
 
     @Test
     public void 
fetchCommittedOffsetsShouldReturnEmptyMapIfPartitionsAreEmpty() {
-        final Consumer<byte[], byte[]> consumer = 
EasyMock.createMock(Consumer.class);
+        @SuppressWarnings("unchecked")
+        final Consumer<byte[], byte[]> consumer = mock(Consumer.class);
         assertTrue(fetchCommittedOffsets(emptySet(), consumer).isEmpty());
     }
 
     @Test
     public void fetchEndOffsetsShouldReturnEmptyMapIfPartitionsAreEmpty() {
-        final Admin adminClient = EasyMock.createMock(AdminClient.class);
+        final Admin adminClient = mock(AdminClient.class);
         assertTrue(fetchEndOffsets(emptySet(), adminClient).isEmpty());
     }
 
     @Test
     public void 
fetchEndOffsetsShouldRethrowRuntimeExceptionAsStreamsException() throws 
Exception {
-        final Admin adminClient = EasyMock.createMock(AdminClient.class);
-        final ListOffsetsResult result = 
EasyMock.createNiceMock(ListOffsetsResult.class);
-        final KafkaFuture<Map<TopicPartition, ListOffsetsResultInfo>> 
allFuture = EasyMock.createMock(KafkaFuture.class);
+        final Admin adminClient = mock(AdminClient.class);
+        final ListOffsetsResult result = mock(ListOffsetsResult.class);
+        @SuppressWarnings("unchecked")
+        final KafkaFuture<Map<TopicPartition, ListOffsetsResultInfo>> 
allFuture = mock(KafkaFuture.class);
 
-        
EasyMock.expect(adminClient.listOffsets(EasyMock.anyObject())).andStubReturn(result);
-        EasyMock.expect(result.all()).andStubReturn(allFuture);
-        EasyMock.expect(allFuture.get()).andThrow(new RuntimeException());
-        replay(adminClient, result, allFuture);
+        when(adminClient.listOffsets(any())).thenReturn(result);
+        when(result.all()).thenReturn(allFuture);
+        when(allFuture.get()).thenThrow(new RuntimeException());
 
         assertThrows(StreamsException.class, () -> fetchEndOffsets(PARTITIONS, 
adminClient));
-        verify(adminClient);

Review Comment:
   @cadonna Following the logic about not verifying stubs discussed in the 
comment above what else would you like to be verified here?



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