doc: document wildcard supported by tools/test.py

[joyeecheung]

This seems to be a underdocumented but useful trick that only very few people know about. Also add a pointer to the test running guide in the test writing guide.

[nodejs-github-bot]

Review requested:

• @nodejs/build
• @nodejs/tsc

[richardlau]

FWIW the test/ prefix is optional and can be omitted, e.g.

tools/test.py parallel/test-stream-*

works.
(IIRC originally the prefix-less (no test/) syntax was the originally supported syntax, and the ability to include the test/ prefix was added later.)

[legendecas]

In certain shells, the wildcard should be quoted:

$ tools/test.py 'parallel/test-stream-*'

I use this pattern a lot, without test/ prefix.

[joyeecheung]

In certain shells, the wildcard should be quoted:

Yes, that's mentioned in the examples

[joyeecheung]

(IIRC originally the prefix-less (no test/) syntax was the originally supported syntax, and the ability to include the test/ prefix was added later.)

Added a few more examples without the prefix (I used the one with the prefix a bit more often because I tend to copy the relative path from vscode)