[GitHub] [pulsar] RobertIndie commented on a change in pull request #8801: Add setter for the reader subscription name

[GitBox <gi...@apache.org>]

RobertIndie commented on a change in pull request #8801:
URL: https://github.com/apache/pulsar/pull/8801#discussion_r534841423



##########
File path: pulsar-broker/src/test/java/org/apache/pulsar/client/impl/ReaderTest.java
##########
@@ -397,4 +396,32 @@ public void testKeyHashRangeReader() throws IOException {
         }
 
     }
+
+    @Test
+    public void testReaderSubName() throws Exception {
+        final String topic = "persistent://my-property/my-ns/testReaderSubName";
+        final String subName = "my-sub-name";
+
+        Reader<String> reader = pulsarClient.newReader(Schema.STRING)
+                .subscriptionName(subName)
+                .topic(topic)
+                .startMessageId(MessageId.earliest)
+                .create();
+        ReaderImpl<String> readerImpl = (ReaderImpl<String>) reader;
+        assertEquals(readerImpl.getConsumer().getSubscription(), subName);
+        reader.close();
+
+        final String topic2 = "persistent://my-property/my-ns/testReaderSubName2";
+        admin.topics().createPartitionedTopic(topic2, 3);
+
+        reader = pulsarClient.newReader(Schema.STRING)
+                .subscriptionName(subName)
+                .topic(topic2)
+                .startMessageId(MessageId.earliest)
+                .create();
+        MultiTopicsReaderImpl<String> multiTopicsReader = (MultiTopicsReaderImpl<String>) reader;
+        multiTopicsReader.getMultiTopicsConsumer().getConsumers()
+                .forEach(consumerImpl -> assertEquals(consumerImpl.getSubscription(), subName));
+        multiTopicsReader.close();
+    }

Review comment:
       It would be better if we could add this test case: when creating two readers with the same `subscriptionName` at the same time, the second one should fail.
   
   




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