Not at all. Submitting untested PRs is a wildly outside of my experience. Having tests written to cover your code is a pre-requisite for having your PR reviewed on our team. "Does it work" aka passing manual testing, is literally the bare minimum before submitting a PR
When I was in a test-driven development environment, one of our rules was that you had to see the test fail. You had to prove that it would actually test what you were trying to test.
