Pretty-printing `lein test`s output?

[vemv]

First of all, I must say I'm new to testing in Clojure. My current workflow is pretty simple:

* Edit + save the tests (which use clojure.test - I hear Midje is better though) in emacs
* Run `lein test` in the terminal
* recur

But then the printed values (triggered when e.g. an `are` case fails) are fairly illegible, especially when big.

Can I get the test runner to pprint its output? Is my workflow improvable anyway?

Thanks - Victor

[Alex Baranosky]

Hi Victor, 

I've developed something I use on my own projects to compare pretty printed test failure output. The final piece for it would be to incorporate its test failure report diffing into a leiningen plugin that wrapped lein test. 

https://github.com/AlexBaranosky/gui-diff

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[Phil Hagelberg]

On Thu, Feb 14, 2013 at 3:06 PM, vemv <ve...@vemv.net> wrote:

> But then the printed values (triggered when e.g. an `are` case fails) are
> fairly illegible, especially when big.
>
> Can I get the test runner to pprint its output? Is my workflow improvable
> anyway?

I use lein-difftest for this: https://github.com/brentonashworth/lein-difftest

-Phil

[Sean Corfield]

You'll find your workflow greatly improved by using nrepl (or
slime/swank) and running tests directly from Emacs - and that applies
whether you're using bare clojure.test, midje or expectations.

I use expectations for testing and expectations-mode in Emacs. I can
run an individual namespace's tests with C-c , and it shows the pass /
fail summary in the minibuffer and highlights any failing tests in
orange or red (depending on how they failed). It also shows the
pass/fail summary in the repl buffer. Pretty sure there are equivalent
modes for both clojure.test and midje.

On Thu, Feb 14, 2013 at 3:06 PM, vemv <ve...@vemv.net> wrote:

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[Víctor M. V.]

I just tried out both lein-difftest and gui-diff and they work just great. I'd love a `lein test` command that defaulted to the former and could resort to the latter when things got hairy. But that's just wishful thinking at the moment :)

Thanks you Sean for the advice as well - the workflow you describe sounds damn good. Now I'm not sure if I want lein or emacs to drive my tests. Perhaps a best-of-both-worlds approach is possible.

[Hugo Duncan]

Sean Corfield <seanco...@gmail.com> writes:

> You'll find your workflow greatly improved by using nrepl (or
> slime/swank) and running tests directly from Emacs - and that applies
> whether you're using bare clojure.test, midje or expectations.

For nrepl.el, via clojure-test-mode, There is an pull request [1] to add
inspection of test failures using pretty printing. The pull request
also adds inspection of test failures using ediff to compare actual and
expected.

[1] https://github.com/technomancy/clojure-mode/pull/139