KevinZTW commented on code in PR #15884:
URL: https://github.com/apache/kafka/pull/15884#discussion_r1593470507


##########
tools/src/test/java/org/apache/kafka/tools/FeatureCommandTest.java:
##########
@@ -160,28 +154,26 @@ private String outputWithoutEpoch(String output) {
         int pos = output.indexOf("Epoch: ");
         return (pos > 0) ? output.substring(0, pos) : output;
     }
-}
 
-class FeatureCommandUnitTest {
     @Test
     public void testLevelToString() {
         assertEquals("5", FeatureCommand.levelToString("foo.bar", (short) 5));
         assertEquals("3.3-IV0",
-                FeatureCommand.levelToString(MetadataVersion.FEATURE_NAME, 
MetadataVersion.IBP_3_3_IV0.featureLevel()));
+            FeatureCommand.levelToString(MetadataVersion.FEATURE_NAME, 
MetadataVersion.IBP_3_3_IV0.featureLevel()));
     }
 
     @Test
     public void testMetadataVersionsToString() {
         assertEquals("3.3-IV0, 3.3-IV1, 3.3-IV2, 3.3-IV3",
-                
FeatureCommand.metadataVersionsToString(MetadataVersion.IBP_3_3_IV0, 
MetadataVersion.IBP_3_3_IV3));
+            
FeatureCommand.metadataVersionsToString(MetadataVersion.IBP_3_3_IV0, 
MetadataVersion.IBP_3_3_IV3));
     }
 
     @Test
     public void testdowngradeType() {

Review Comment:
   thanks! just fix it in new commit



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