@mfikes: I’m trying to get the tests running before I start making any changes, but I’m getting the following errors:

$ script/test
Running unit tests...
Running integration tests...
Running integration tests...
222,232c222,224
< (defn my-function
<   "This is a cool
<   function with a docstring."
<   [x]
<   (* x x))
< nil
< (defn my-function
<   "This is a cool
<   function with a docstring."
<   [x]
<   (* x x))
---
> Source not found
> nil
> Source not found

Integration tests have failed.

That’s interesting.

So, you are getting those failures on a clean build.

yes

One idea might be to git clone say, to a your Desktop, go in there and try a script/build and script/test in that fresh clone to see if it fails

Otherwise this would mean that the build is failing in an odd way on your box.

let me try that

(FWIW, https://travis-ci.org/mfikes/planck is building on macOS and Linux, successfully.)

I assume that means that travis runs the tests before building?