Which function do you want to add comments to?

TestUpdateStatus in pkg\ddc\alluxio\dataset_test.go.

What comments do you want to add?

// TestUpdateDatasetStatus is a unit test function to verify the correctness of the UpdateDatasetStatus method
// in the AlluxioEngine struct. This method is responsible for updating the status of a Dataset.
//
// Test procedure:
// 1. Create test datasets and runtime objects to simulate Kubernetes resources.
// 2. Use a fake client to manage these objects.
// 3. Initialize an instance of AlluxioEngine with test data.
// 4. Define test cases with different DatasetPhase values and expected results.
// 5. Execute UpdateDatasetStatus for each test case.
// 6. Validate whether the updated Dataset status matches the expected results, including Phase, CacheStates, and HCFSStatus.
// 7. If any test fails, output an error message.
//
// This test ensures that UpdateDatasetStatus correctly updates the Dataset's status and handles different DatasetPhase transitions properly.