joshua2519 commented on code in PR #20293:
URL: https://github.com/apache/kafka/pull/20293#discussion_r2415469781


##########
tools/src/test/java/org/apache/kafka/tools/streams/DescribeStreamsGroupTest.java:
##########
@@ -290,8 +291,14 @@ private StreamsGroupCommand.StreamsGroupService 
getStreamsGroupService(String[]
     }
 
     private static void validateDescribeOutput(List<String> args, String 
errorMessage) {
-        String output = ToolsTestUtils.grabConsoleOutput(() -> 
StreamsGroupCommand.main(args.toArray(new String[0])));
-        assertEquals(errorMessage, output.trim());
+        ToolsTestUtils.MockExitProcedure exitProcedure = new 
ToolsTestUtils.MockExitProcedure();
+        Exit.setExitProcedure(exitProcedure);
+        try {
+            String output = ToolsTestUtils.grabConsoleOutput(() -> 
StreamsGroupCommand.main(args.toArray(new String[0])));

Review Comment:
   That's a good point. 
   I've already reverted it and changed to `execute()` asserting the returned 
code as well.
   



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