refine the test cases

[JacksonTian]

You need to complete

• unit tests and/or feature tests
• documentation is changed or added

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 81.25000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 96.41%. Comparing base (36e3cfd) to head (6b65fb6).

Files	Patch %	Lines
credentials/internal/providers/cli_profile.go	50.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #104      +/-   ##
==========================================
- Coverage   96.45%   96.41%   -0.04%     
==========================================
  Files          31       31              
  Lines        2085     2092       +7     
==========================================
+ Hits         2011     2017       +6     
- Misses         59       60       +1     
  Partials       15       15              

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