RFR: 1627: Add tests for bot factories [v6]

[Erik Joelsson]

On Tue, 18 Oct 2022 16:59:58 GMT, Zhao Song <zsong at openjdk.org> wrote:

>> Add some tests for BotFactories.
>
> Zhao Song has updated the pull request incrementally with one additional commit since the last revision:
> 
>   fix space problem

Looks good! Thanks for writing all these tests.

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Marked as reviewed by erikj (Lead).

PR: https://git.openjdk.org/skara/pull/1393