bokner
Hello everyone,
I’m trying to run ExUnit tests from the shell, and I almost got it working:
iex(2)> ExUnit.start(autorun: false)
:ok
iex(3)> test_file = "test/sample_test.exs"
"test/sample_test.exs"
iex(4)> Mix.Compilers.Test.require_and_run([test_file], ["test"], formatters: [ExUnit.CLIFormatter])
........
Finished in 3.6 seconds
8 tests, 0 failures
{:ok, %{excluded: 0, failures: 0, skipped: 0, total: 8}}
So far so good, but the second run of Mix.Compilers.Test.require_and_run/3 doesn’t seem to do anything:
iex(5)> Mix.Compilers.Test.require_and_run([test_file], ["test"], formatters: [ExUnit.CLIFormatter])
Finished in 0.00 seconds
0 failures
{:ok, %{excluded: 0, failures: 0, skipped: 0, total: 0}}
It looks like the test compiler caches the test results. If that’s the case, can it be forced to invalidate it and run the tests from scratch again?
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Ninigi
Wild guess here, but I think
require_and_runmight check if all the files are required, and then chain it with a literal&&- so if the files are already required, it might returnfalseand the second part would not be executed.Like I said, idk, but it makes sense to me.
EDIT: Maybe the second time just run
.run? Another wild guess.EDIT2: and just because I am curious, why do you need this?
bokner
Did you mean ExUnit.run ? Unfortunately, it didn’t help.
There are currently 2 reasons as to why I want to do this:
Ninigi
Unfortunately I don’ t really know what you are talking about - but it sounds like a CI Server.
I like to actually be in charge of when to deploy updates or upgrades (which is something a UI server should consider.)
Kind of weird that nobody has implemented anything yet, but I guess you are on your own for now.
axelson
Interesting idea! Mix tasks don’t re-execute by default. Try running
Mix.Task.clear/0before require_and_run (docs: Mix.Task — Mix v1.20.2)bokner
Thanks!
Unfortunately, no luck with
Mix.Task.clear/0.paulanthonywilson
I wanted to do this because of the apps I’m working in at the moment has a long startup time, making TDD painful. Someone pointed me to a solution based on https://olshansky.medium.com/testiex-easier-test-driven-development-in-elixir-761cd1a9f11 and it works like treat.
filipe
basically you have to load it again to rerun the test
or even better compile_file, since load_file is depricated
then you can rerun