You aren't actually testing real world use cases You can mock them from actual data. The last system I worked with and tested in production processed 1..0.1 li

You aren't actually testing real world use cases You can mock them from actual data. The last system I worked with and tested in production processed 1..0.1 live requests per minute. Hot-testing it was a torture. There was a test site which could produce requests, but using it was a torture as well, also it worked only on even days of week and could only be set up on request (as in IM, phone call, not HTTP) due to administrative cf. Before anyone asks, no, it couldn’t be tested off-production. I could spin up a “staging” server with all proper infra, but (1) after all the modifications it would just turn into production, (2) incoming data was live anyway, and was an obligation to the company (i.e. all my fails closer to a response went to support and ate limits). Peer services had no such thing as test mode.