Don't I know it. Last client, travel biz, had APIs to many holiday and travel co's APIs. Some of the big ones, no names, had no mock data. Being travel data, l

Don't I know it. Last client, travel biz, had APIs to many holiday and travel co's APIs. Some of the big ones, no names, had no mock data. Being travel data, live data changed by the second. Had to employ someone specifically to fix test data, and the tests, simply to allow the devs to work. Insane. Corollary: The reason the travel industry is such as mess is its complete lack of understanding of, and refusal to engage with, its customers. It's really, really easy to fix, but the suits refuse to acknowledge the problems.