Unit tests for FeatureProviderStatusManager..

[NeaguGeorgiana23]

This PR

Adds unit-tests for FeatureProviderStatusManager.

[gemini-code-assist]

Summary of Changes

Hello @NeaguGeorgiana23, 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!

This pull request significantly enhances the test coverage for the FeatureProviderStatusManager by adding a dedicated suite of unit tests. These tests validate the manager's lifecycle, including its creation, initialization, shutdown, and status transitions, utilizing a newly implemented mock for the FeatureProvider interface to isolate the component under test.

Highlights

• Unit Tests Added: Comprehensive unit tests have been introduced for the FeatureProviderStatusManager to ensure its correct functionality across various states and operations.
• Mocking Infrastructure: A new MockFeatureProvider class has been added using Google Mock, enabling isolated and controlled testing of components that depend on the FeatureProvider interface.
• Build System Updates: The test/BUILD file has been updated to include the new mock library and the FeatureProviderStatusManager unit test, integrating them into the build process.

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[gemini-code-assist]

Code Review

This pull request adds comprehensive unit tests for FeatureProviderStatusManager, including a mock for FeatureProvider and the necessary BUILD file configurations. The tests are well-structured, using GTest fixtures and parameterized tests to cover various scenarios like initialization, shutdown, and status management. My review includes a couple of suggestions: one to correct a dependency in the BUILD file for the mock library, and another to enhance test coverage by including all possible provider statuses in one of the tests. Overall, this is a great addition to improve the project's test coverage and reliability.

[alichka06]

Is FeatureProviderStatusManager needed here?

[NeaguGeorgiana23]

yes, since we need the result to initialize the manager_ . We first need this line to check the status returned is ok and only then init the manager_ with the value.

[alichka06]

You should be able to just call Create(mock_provider) since FeatureProviderStatusManager is in the header you are testing and the tests are in the same namespace

[NeaguGeorgiana23]

We can't use jus Create(mock_provider) because this is a static function: static absl::StatusOr<std::unique_ptr<FeatureProviderStatusManager>> Create( std::shared_ptr<FeatureProvider> provider);.

We used a static function to follow the Factory Method pattern so we can also return a StatusOr instead of having a throw in a regular constructor.