Add "cli" unittest

[pythonbrad]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 4168962125

• 128 of 128 (100.0%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 98.801%

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Totals
Change from base Build 4163785285:	0.1%
Covered Lines:	39721
Relevant Lines:	40203

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💛 - Coveralls

[pythonbrad]

[Select { labels: ["name"], rows: [] }]
thread 'main' panicked at 'index out of bounds: the len is 0 but the index is 0', pkg/rust/examples/sled_multi_threaded.rs:59:26

This error can be manage if we wait for the thread to terminate before get the row.

[panarch]

Thanks a lot 👍 👍