fapaul commented on a change in pull request #17937:
URL: https://github.com/apache/flink/pull/17937#discussion_r781031713



##########
File path: 
flink-connectors/flink-connector-pulsar/src/test/java/org/apache/flink/connector/pulsar/source/reader/split/PulsarPartitionSplitReaderTestBase.java
##########
@@ -39,78 +50,164 @@
 import org.junit.jupiter.api.extension.TestTemplateInvocationContextProvider;
 
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
+import java.util.concurrent.atomic.AtomicReference;
 import java.util.stream.Stream;
 
 import static java.time.Duration.ofSeconds;
 import static java.util.Collections.singletonList;
 import static org.apache.commons.lang3.RandomStringUtils.randomAlphabetic;
+import static 
org.apache.flink.connector.pulsar.common.utils.PulsarExceptionUtils.sneakyAdmin;
+import static 
org.apache.flink.connector.pulsar.common.utils.PulsarExceptionUtils.sneakyThrow;
 import static 
org.apache.flink.connector.pulsar.source.PulsarSourceOptions.PULSAR_ENABLE_AUTO_ACKNOWLEDGE_MESSAGE;
 import static 
org.apache.flink.connector.pulsar.source.PulsarSourceOptions.PULSAR_MAX_FETCH_RECORDS;
 import static 
org.apache.flink.connector.pulsar.source.PulsarSourceOptions.PULSAR_MAX_FETCH_TIME;
 import static 
org.apache.flink.connector.pulsar.source.PulsarSourceOptions.PULSAR_SUBSCRIPTION_NAME;
-import static 
org.apache.flink.connector.pulsar.source.enumerator.cursor.StopCursor.never;
 import static 
org.apache.flink.connector.pulsar.source.enumerator.topic.TopicNameUtils.topicNameWithPartition;
 import static 
org.apache.flink.connector.pulsar.source.enumerator.topic.TopicRange.createFullRange;
+import static 
org.apache.flink.connector.pulsar.source.reader.deserializer.PulsarDeserializationSchema.flinkSchema;
+import static 
org.apache.flink.connector.pulsar.testutils.PulsarTestCommonUtils.isAssignableFromParameterContext;
+import static 
org.apache.flink.connector.pulsar.testutils.extension.PulsarSourceOrderlinessExtension.PULSAR_SOURCE_READER_SUBSCRIPTION_TYPE_STORE_KEY;
+import static 
org.apache.flink.connector.pulsar.testutils.extension.PulsarSourceOrderlinessExtension.PULSAR_TEST_RESOURCE_NAMESPACE;
+import static 
org.apache.flink.connector.pulsar.testutils.runtime.PulsarRuntimeOperator.DEFAULT_PARTITIONS;
+import static 
org.apache.flink.connector.pulsar.testutils.runtime.PulsarRuntimeOperator.NUM_RECORDS_PER_PARTITION;
 import static org.apache.flink.core.testutils.CommonTestUtils.waitUtil;
+import static 
org.apache.flink.shaded.guava30.com.google.common.util.concurrent.Uninterruptibles.sleepUninterruptibly;
 import static org.apache.flink.util.Preconditions.checkNotNull;
 import static org.apache.pulsar.client.api.Schema.STRING;
-import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.assertj.core.api.Assertions.assertThat;
 
 /** Test utils for split readers. */
+@ExtendWith({
+    PulsarSourceOrderlinessExtension.class,
+    TestLoggerExtension.class,
+})
 public abstract class PulsarPartitionSplitReaderTestBase extends 
PulsarTestSuiteBase {

Review comment:
       In general, I think having less visibility is preferable so using 
private where ever possible. Furthermore, there is also a saying that one 
should use composition over inheritance. Every time I want to use inheritance I 
think for a moment if there is no other way before implementing it.




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