Remove duplicate test function from list-ops-test.el (#225)

[berquist]

If there is a duplicate test present when running ERT on a whole file from the command line, it will complain loudly and not even attempt to run any of the tests.

[ErikSchierboom]

Nice catch!

[fapdash]

@berquist Nice catch, thank you. :)
Seems like a nice check to have, sadly the way I run ert from the command line doesn't produce this error.
With which command are you running ert and which Emacs version are you using?

[berquist]

It's verbatim the "From the terminal" section in the help (which I just noticed says -batch and not --batch):

#!/usr/bin/env sh

emacs --batch -l ert -l "${1}" -f ert-run-tests-batch-and-exit

My brain must have glossed over the interactive run section...

I'm using 29.0.50, something reasonably close to HEAD.

[fapdash]

@berquist Might be new behavior for Emacs 29. And Emacs seems to be fine with -batch, the CI run even calls it like that:

emacs-lisp/bin/test-examples

Line 16 in 02cb895

emacs -batch -l ert -l "${exercise}-test.el" -f ert-run-tests-batch-and-exit

[fapdash]

Interesting, the Emacs Manual also advises to use -batch: https://www.gnu.org/software/emacs/manual/html_node/ert/Running-Tests-in-Batch-Mode.html 🤷