Enhance output test messages.

[nishihatapalmer]

• Print which algorithms are to be tested.
• Use uppercase algo names to be standard.

[nishihatapalmer]

Hold on before merging this - have a couple more tweaks to test output coming.

[ostafen]

you can mark the PR as a draft to prevent merging

[nishihatapalmer]

OK, ready for review and merge.

• Gives a % update as it's testing algos.
• Adds new forms of test.
• Adds a quick test option for fast feedback.
• Adds a debug option to make it easy to debug into failing search tests (re-runs a failed test from a central function so you can put a breakpoint there).