merlimat commented on a change in pull request #6812:
URL: https://github.com/apache/pulsar/pull/6812#discussion_r414282182
##########
File path: pulsar-client-cpp/tests/BatchMessageTest.cc
##########
@@ -982,4 +982,48 @@ TEST(BatchMessageTest, testPraseMessageBatchEntry) {
ASSERT_EQ(message.getDataAsString(), expected.content);
ASSERT_EQ(message.getProperty(expected.propKey), expected.propValue);
}
-}
\ No newline at end of file
+}
+
+TEST(BatchMessageTest, testSendCallback) {
+ const std::string topicName =
"persistent://public/default/BasicMessageTest-testSendCallback";
+
+ Client client(lookupUrl);
+
+ constexpr int numMessagesOfBatch = 3;
+
+ ProducerConfiguration producerConfig;
+ producerConfig.setBatchingEnabled(5);
+ producerConfig.setBatchingMaxMessages(numMessagesOfBatch);
+ producerConfig.setBatchingMaxPublishDelayMs(1000); // 1 s, it's long
enough for 3 messages batched
+ producerConfig.setMaxPendingMessages(numMessagesOfBatch);
+
+ Producer producer;
+ ASSERT_EQ(ResultOk, client.createProducer(topicName, producerConfig,
producer));
+
+ Consumer consumer;
+ ASSERT_EQ(ResultOk, client.subscribe(topicName, "SubscriptionName",
consumer));
+
+ std::set<MessageId> sentIdSet;
+ for (int i = 0; i < numMessagesOfBatch; i++) {
+ const auto msg = MessageBuilder().setContent("a").build();
+ producer.sendAsync(msg, [&sentIdSet, i](Result result, const
MessageId& id) {
+ ASSERT_EQ(ResultOk, result);
+ ASSERT_EQ(i, id.batchIndex());
+ sentIdSet.emplace(id);
Review comment:
There's no hard guarantee that this callback will be executed before the
receive loop is done.
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