Larry Fishel wrote:

My reading of what the OP wrote is that the plumber meant that it
was their policy to do the smoke test, and that when doing a smoke
test they are required by law to inform the FD

My first reply to the OP was that he should simply ask another plumbing
company how much they would charge to replace a toilet floor seal.

In other words - don't mention anything about a sewer gas odor. That
should alleviate any tendency for the plumbers to raise the issue of a
smoke test.