Ask HN: Would you pay for a test suite?

I was thinking about sustainable open source development recently, and got the idea of selling the test suite. Basically, tests are a value add that you can pay for if you need it.

For example, if an org wants to modify an open source project in order to adapt it to their specific requirements, having access to a high quality test suite is going to be very valuable.

Additionally, since someone is paying for the tests, it would incentivize the open source developer to create higher quality tests, which in turn leads to higher quality software. It's a positive feedback loop!

Anybody can still use the software without having access to the test suite, and will still benefit from the existence of the tests since stable releases will have been tested.

There could also be different test tiers. Like some core functionality tests are free, but integration tests with important third party services/libs require a subscription. This could be different from a regular support contract, since it'd be more like a typical software licensing situation. Just pay $X/mo for access to the test repo, a CI/CD service, etc with no other commitments from the developer(s).

Is there a flaw in this idea? Would you pay for (or convince your employer to pay for) a test suite?