Is it acceptable to create tests relying on docker for a node.js module?

I currently have a module which needs to be tested in different scenarios.

But to improve the tests I have a lot of file copying and child-process execs to do.

Maybe Docker would be a good solution to run the tests, but this would add a dependency on Docker.

Also I haven't seen packages relying on docker for such scenarios so far.

So for an npm package, would it be acceptable to publish a package with tests relying on docker?