Alwaysgaurav1 opened a new pull request, #29113: URL: https://github.com/apache/flink/pull/29113
## What is the purpose of the change Under parent umbrella [FLINK-25325](https://issues.apache.org/jira/browse/FLINK-25325) and issue [FLINK-40561](https://issues.apache.org/jira/browse/FLINK-40561), this pull request modernizes all remaining JUnit 4 and Hamcrest test classes in the `flink-statebackend-changelog` module to **JUnit 5 (Jupiter)** and **AssertJ**. ## Brief change log - Migrated test classes and test methods to JUnit 5 annotations (`@Test`, `@BeforeEach`, `@AfterEach`, `@TempDir`) and package-private visibility. - Converted parameterized test suites (`ChangelogDelegateStateTest`, `ChangelogKeyedStateBackendTest`) to Flink's `@ExtendWith(ParameterizedTestExtension.class)` and `@TestTemplate`. - Migrated legacy `@Rule TemporaryFolder` to Jupiter's `@TempDir Path`. - Replaced `@Test(expected = ...)` with AssertJ's `assertThatThrownBy(...)`. - Modernized all assertion statements from `org.junit.Assert.*` and Hamcrest matchers (`containsInAnyOrder`, etc.) to fluent AssertJ `assertThat(...)` assertions. - Test suites covered: - `ChangelogMetricGroupTest` - `ChangelogStateBackendLoadingTest` - `ChangelogStateDiscardTest` - `ChangelogListStateTest` - `ChangelogMapStateTest` - `ChangelogPqStateTest` - `StateChangeLoggerTestBase` - `KvStateChangeLoggerImplTest` - `PriorityQueueStateChangeLoggerImplTest` - `ChangelogDelegateStateTest` - `ChangelogKeyedStateBackendTest` - `ChangelogStateBackendTestUtils` ## Verifying this change This change is a test cleanup and refactoring with zero production code changes. - Verified all module unit tests pass (`mvn test -pl flink-state-backends/flink-statebackend-changelog`: 668 tests executed, 0 failures, 0 errors, 31 skipped). - Verified Checkstyle rules pass with 0 violations (`mvn checkstyle:check -pl flink-state-backends/flink-statebackend-changelog`). ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): **no** - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: **no** - The serializers: **no** - The runtime per-record code paths (performance sensitive): **no** - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn, ZooKeeper: **no** - The S3 file system connector: **no** ## Documentation - Does this pull request introduce a new feature? **no** - If yes, how is the feature documented? **not applicable** -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
