RFR: 1627: Add tests for bot factories [v3]

[Zhao Song]

> Add some tests for BotFactories.

Zhao Song has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - Adjusted format
 - Added all botFactory tests
 - Merge branch 'master' into SKARA-1627
 - added some botFactory tests

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Changes:
  - all: https://git.openjdk.org/skara/pull/1393/files
  - new: https://git.openjdk.org/skara/pull/1393/files/5cd729bd..31efcd03

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=skara&pr=1393&range=02
 - incr: https://webrevs.openjdk.org/?repo=skara&pr=1393&range=01-02

  Stats: 1564 lines in 31 files changed: 1299 ins; 219 del; 46 mod
  Patch: https://git.openjdk.org/skara/pull/1393.diff
  Fetch: git fetch https://git.openjdk.org/skara pull/1393/head:pull/1393

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