gaurav kumar pandey created FLINK-40564:
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Summary: [JUnit5 Migration] Migrate flink-statebackend-changelog
tests to JUnit 5 and AssertJ
Key: FLINK-40564
URL: https://issues.apache.org/jira/browse/FLINK-40564
Project: Flink
Issue Type: Technical Debt
Components: Runtime / State Backends
Reporter: gaurav kumar pandey
h2. Motivation
As part of the umbrella migration to JUnit 5 and AssertJ (FLINK-25325), all
test suites in the `flink-statebackend-changelog` module should be modernized
to JUnit 5 (Jupiter) and AssertJ.
h2. Scope of Changes
Modernize legacy JUnit 4 annotations, rules, and assertions in
`flink-statebackend-changelog`:
* Replace `@org.junit.Test`, `@Before`, `@After` with JUnit 5 Jupiter
annotations (`@org.junit.jupiter.api.Test`, `@BeforeEach`, `@AfterEach`).
* Replace `@Rule TemporaryFolder` with JUnit 5 `@TempDir Path`.
* Replace JUnit 4 parameterized runners (`@RunWith(Parameterized.class)`) with
Flink's `@ExtendWith(ParameterizedTestExtension.class)` and `@TestTemplate`.
* Replace `org.junit.Assert.*` and Hamcrest matchers with AssertJ
`assertThat(...)`.
* Update class and test method visibility to package-private.
Test suites to migrate:
- ChangelogMetricGroupTest
- ChangelogStateBackendLoadingTest
- ChangelogStateDiscardTest
- ChangelogListStateTest
- ChangelogMapStateTest
- ChangelogPqStateTest
- StateChangeLoggerTestBase
- KvStateChangeLoggerImplTest
- PriorityQueueStateChangeLoggerImplTest
- ChangelogDelegateStateTest
- ChangelogKeyedStateBackendTest
- ChangelogStateBackendTestUtils
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