Well like others have said before, the company most likely wont go down in flames in order to protect you. Not all, but I assume the major providers will roll over.
I would never expect a company that did log to refuse to give those logs to a court. That would be corporate suicide and executives would end up in actual prisons. I also wouldn't expect a VPN provider to refuse a court ordered warrant to begin logging your particular traffic or something like that. So if a company has appeared in court and failed to produce any logs and the court has accepted that information as not existing, it's hard to get stronger verification than that. And that has occurred with at least a few VPN providers (while a few have provided logs to the courts, proving they log).
The better VPN providers will be set up in a way that makes it difficult to touch them in the first place, e.g. they operate from a jurisdiction that sets a high bar for forcing a company to provide customer information.