You could generate tests that give you 100% line coverage but the real test is if the thousands of subscribing players have the same experience which doesn't have the same agent friendly testing feedback loop
limping, halting, lame, crippled
c. 347 CE – 420 CE, Hieronymus, Vulgate Matthew 11:5:
Caeci vident, claudi ambulant […] The blind see, the lame walk […]
> Very carefully, and in multiple stages.
That answer is so 3 months ago