Github user rmetzger commented on a diff in the pull request:
https://github.com/apache/flink/pull/2509#discussion_r101047374
--- Diff:
flink-connectors/flink-connector-kafka-base/src/test/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaConsumerBaseMigrationTest.java
---
@@ -299,91 +131,60 @@ public Object answer(InvocationOnMock
invocationOnMock) throws Throwable {
testHarness.setTimeCharacteristic(TimeCharacteristic.ProcessingTime);
testHarness.setup();
+ // restore state from binary snapshot file using legacy method
testHarness.initializeStateFromLegacyCheckpoint(
getResourceFilename("kafka-consumer-migration-test-flink1.1-snapshot"));
testHarness.open();
- final Throwable[] error = new Throwable[1];
+ // assert that there are partitions and is identical to
expected list
+ Assert.assertTrue(consumerFunction.getSubscribedPartitions() !=
null);
+
Assert.assertTrue(!consumerFunction.getSubscribedPartitions().isEmpty());
+ Assert.assertEquals(partitions,
consumerFunction.getSubscribedPartitions());
- // run the source asynchronously
- Thread runner = new Thread() {
- @Override
- public void run() {
- try {
- consumerFunction.run(new
DummySourceContext() {
- @Override
- public void collect(String
element) {
- //latch.trigger();
- }
- });
- }
- catch (Throwable t) {
- t.printStackTrace();
- error[0] = t;
- }
- }
- };
- runner.start();
+ // the expected state in
"kafka-consumer-migration-test-flink1.1-snapshot"
+ final HashMap<KafkaTopicPartition, Long> expectedState = new
HashMap<>();
+ expectedState.put(new KafkaTopicPartition("abc", 13), 16768L);
+ expectedState.put(new KafkaTopicPartition("def", 7),
987654321L);
- if (!latch.isTriggered()) {
- latch.await();
- }
+ // assert that state is correctly restored from legacy
checkpoint
+ Assert.assertTrue(consumerFunction.getRestoredState() != null);
+ Assert.assertEquals(expectedState,
consumerFunction.getRestoredState());
consumerOperator.close();
-
- runner.join();
-
- Assert.assertNull(error[0]);
- }
-
- private abstract static class DummySourceContext
- implements SourceFunction.SourceContext<String> {
-
- private final Object lock = new Object();
-
- @Override
- public void collectWithTimestamp(String element, long
timestamp) {
- }
-
- @Override
- public void emitWatermark(Watermark mark) {
- }
-
- @Override
- public Object getCheckpointLock() {
- return lock;
- }
-
- @Override
- public void close() {
- }
--- End diff --
Looks like you've removed a lot of code from this test here. I guess that
the `DummyFlinkKafkaConsumer` covers everything the deleted code did?
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