KAFKA-10789: Streamlining Tests in ChangeLoggingKeyValueBytesStoreTest #15
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JUnit5 test classes and methods should have default package visibility
Local variables should not shadow class fields
All unittest passed
fix import static org.mockito.ArgumentMatchers.anyString;
revert remove unnecessary public
insert empty lines between methods
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Pr needs a tag about Ci, I can't do it. sorry |
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Hello @arvi18, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
Summary of Changes
This pull request focuses on streamlining the tests in ChangeLoggingKeyValueBytesStoreTest by using a mocked InMemoryKeyValueStore. It also includes minor refactoring, such as removing unnecessary public modifiers and renaming variables to avoid naming conflicts.
Highlights
- Test Streamlining: The core change involves replacing the concrete
InMemoryKeyValueStorewith a mocked version (innerMock) to simplify and isolate the unit tests. - Refactoring: Minor refactoring includes removing unnecessary
publicaccess modifiers and renaming variables for clarity. - Mocking: The pull request introduces several
mock...methods to configure the behavior of the mockedInMemoryKeyValueStorefor different test scenarios.
Changelog
- streams/src/test/java/org/apache/kafka/streams/state/internals/ChangeLoggingKeyValueBytesStoreTest.java
- Replaced
InMemoryKeyValueStorewith a@MockannotatedinnerMock. - Added
mockPosition,mockGet,mockPut,mockPutAll,mockDelete,mockPutIfAbsent, andmockPrefixScanmethods to define the behavior of the mocked store. - Modified test methods to use the mocked store and verify interactions with it.
- Removed the import for
org.apache.kafka.streams.state.KeyValueStoreas it's no longer directly used. - Renamed local variable
streamsConfigtomockedStreamsConfiginstreamsConfigMockmethod to avoid shadowing the class member.
- Replaced
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Code Review
The pull request aims to streamline tests in ChangeLoggingKeyValueBytesStoreTest by using a mocked InMemoryKeyValueStore and performing minor refactoring. The changes seem reasonable and improve the testability of the component. However, there are a few areas that could be improved for clarity and completeness.
Summary of Findings
- Missing Mock Behavior Definitions: The tests rely heavily on mock objects, but some tests are missing necessary mock behavior definitions, potentially leading to incomplete or incorrect test scenarios. Each test should have all the mock behaviors defined that it needs to execute properly.
- Incomplete Mocking: The
approximateNumEntriesmethod is not mocked, which could lead to incorrect assertions in tests that rely on this method. All methods that are used in the tests should be mocked. - Duplicated Mocking Logic: The mocking logic is repeated across multiple tests. Consider centralizing the mock setup to reduce code duplication and improve maintainability. This also makes it easier to understand the overall mocking strategy.
Merge Readiness
The pull request introduces valuable improvements to the test suite. However, the identified issues regarding mock behavior definitions and potential code duplication should be addressed before merging. I am unable to approve this pull request, and recommend that another reviewer also reviews this code before merging. At a minimum, the high severity issues should be addressed before merging.
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@arvi18 -- I am confused. This PR is not again I am not going to review this PR. Does not make sense. |
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It seems the robot copies all comments from the PR. I hope the maintainers can fix it ASAP. |
Hi, Please rest assured that this activity has been stopped, and we will ensure it does not happen again. Thank you for your understanding, and sorry once again for the inconvenience. |
InMemoryKeyValueStoreto streamlined the unit testpublicand rename the variable inside the method with a different name with outside of the method.Committer Checklist (excluded from commit message)