Test Coverage Does Not Include Invalid Field Name Scenario #2
Description
The test class does not include a test case for when an invalid fieldApiName is provided. This scenario should be tested to ensure the method handles it gracefully (e.g., returns null or an error).
Suggested Fix
- Add a test case where fieldApiName is set to a non-existent field (e.g., 'NonExistentField').
- Assert that the response is null or as expected.