hasnain-db commented on code in PR #43541:
URL: https://github.com/apache/spark/pull/43541#discussion_r1375362260


##########
common/network-shuffle/src/test/java/org/apache/spark/network/shuffle/ShuffleTransportContextSuite.java:
##########
@@ -90,15 +94,22 @@ private ByteBuf getDecodableMessageBuf(Message req) throws 
Exception {
   public void testInitializePipeline() throws IOException {
     // SPARK-43987: test that the FinalizedHandler is added to the pipeline 
only when configured
     for (boolean enabled : new boolean[]{true, false}) {
-      ShuffleTransportContext ctx = createShuffleTransportContext(enabled);
-      SocketChannel channel = new NioSocketChannel();
-      RpcHandler rpcHandler = mock(RpcHandler.class);
-      ctx.initializePipeline(channel, rpcHandler);
-      String handlerName = 
ShuffleTransportContext.FinalizedHandler.HANDLER_NAME;
-      if (enabled) {
-        Assertions.assertNotNull(channel.pipeline().get(handlerName));
-      } else {
-        Assertions.assertNull(channel.pipeline().get(handlerName));
+      for (boolean isClient: new boolean[]{true, false}) {
+        // Since the decoder is not Shareable, reset it between test runs to 
avoid errors since it's
+        // used both across ShuffleTransportContextSuite and 
SslShuffleTransportContextSuite
+        // and server/clients

Review Comment:
   My general bias was to not add a constraint on production code just for 
tests -- but it makes sense to tag this as shareable, so I'll do that.



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