clolov commented on code in PR #12492:
URL: https://github.com/apache/kafka/pull/12492#discussion_r946489287


##########
streams/src/test/java/org/apache/kafka/streams/kstream/internals/TransformerSupplierAdapterTest.java:
##########
@@ -24,117 +24,113 @@
 import org.apache.kafka.streams.kstream.TransformerSupplier;
 import org.apache.kafka.streams.processor.ProcessorContext;
 import org.apache.kafka.streams.state.StoreBuilder;
-import org.easymock.EasyMock;
-import org.easymock.EasyMockSupport;
-import org.junit.Before;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnitRunner;
 
 import static org.hamcrest.core.IsEqual.equalTo;
 import static org.hamcrest.core.IsSame.sameInstance;
 import static org.hamcrest.core.IsNot.not;
 import static org.hamcrest.MatcherAssert.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
 
-public class TransformerSupplierAdapterTest extends EasyMockSupport {
+@RunWith(MockitoJUnitRunner.StrictStubs.class)
+public class TransformerSupplierAdapterTest {
 
+    @Mock
     private ProcessorContext context;
+    @Mock
     private Transformer<String, String, KeyValue<Integer, Integer>> 
transformer;
+    @Mock
     private TransformerSupplier<String, String, KeyValue<Integer, Integer>> 
transformerSupplier;
+    @Mock
     private Set<StoreBuilder<?>> stores;
 
     final String key = "Hello";
     final String value = "World";
 
-    @Before
-    public void before() {
-        context = mock(ProcessorContext.class);
-        transformer = mock(Transformer.class);
-        transformerSupplier = mock(TransformerSupplier.class);
-        stores = mock(Set.class);
-    }
-
     @Test
     public void shouldCallInitOfAdapteeTransformer() {
-        EasyMock.expect(transformerSupplier.get()).andReturn(transformer);
-        transformer.init(context);
-        replayAll();
+        when(transformerSupplier.get()).thenReturn(transformer);
 
         final TransformerSupplierAdapter<String, String, Integer, Integer> 
adapter =
             new TransformerSupplierAdapter<>(transformerSupplier);
         final Transformer<String, String, Iterable<KeyValue<Integer, 
Integer>>> adaptedTransformer = adapter.get();
         adaptedTransformer.init(context);
 
-        verifyAll();
+        verify(transformerSupplier).get();
+        verify(transformer).init(any(ProcessorContext.class));

Review Comment:
   It is possible and I have change it in upcoming commits.



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