#+STARTUP: hidestars showall

• Humane test output for clojure.test

[[https://clojars.org/pjstadig/humane-test-output][https://clojars.org/pjstadig/humane-test-output/latest-version.svg]]

This library does two things: 1. Test output is pretty printed. 2. Equality assertions are also diffed.

Version 0.8.0 and later of humane-test-output requires Clojure 1.8.0 or later. ** IDEs This test output formatting works great with Emacs and cider 0.10 or lower, and when running Leiningen in a console. However, some IDEs are also bashing in their own versions of test formatting.

I do not recommend using this with cider 0.11.0 or greater or with Cursive, or LightTable, or any other IDE. ** Clojure To activate it you will need to call ~pjstadig.humane-test-output/activate!~. The preferred way to do this with Leiningen is to use an injection in the :user profile in your ~/.lein/profiles.clj:

#+BEGIN_EXAMPLE {:user {:dependencies [[pjstadig/humane-test-output "0.8.3"]] :injections [(require 'pjstadig.humane-test-output) (pjstadig.humane-test-output/activate!)]}} #+END_EXAMPLE

If you are on a mixed team and some members need to disable humane test output, they can define the ~INHUMANE_TEST_OUTPUT~ environment variable, though again it's better for each user to enable it in their own ~/.lein/profiles.clj.

Once humane-test-output is activated, instead of this: #+BEGIN_EXAMPLE FAIL in (a-test) (humane_test_output_test.clj:7) FIXME, I fail. expected: (= {:foo :bar, :baz :quux, :something "a long string?", :another-key "and another value"} {:fo :bar, :baz :quux, :something "a long string?", :another-key "and another value"}) actual: (not (= {:another-key "and another value", :foo :bar, :something "a long string?", :baz :quux} {:another-key "and another value", :something "a long string?", :fo :bar, :baz :quux}))

FAIL in (a-test) (humane_test_output_test.clj:11) FIXME, I fail. expected: (= {:foo :bar, :baz :quux} {:foo :bar, :baz :quux} {:fo :bar, :baz :quux}) actual: (not (= {:foo :bar, :baz :quux} {:foo :bar, :baz :quux} {:fo :bar, :baz :quux})) FAIL in (a-test) (humane_test_output_test.clj:14)

FIXME, I fail. expected: (list? foo) actual: (not (list? {:another-key "and another value", :foo :bar, :something "a long string?", :baz :quux})) #+END_EXAMPLE

You get this: #+BEGIN_EXAMPLE FAIL in (a-test) (humane_test_output_test.clj:7) FIXME, I fail. expected: {:another-key "and another value", :foo :bar, :something "a long string?", :baz :quux} actual: {:fo :bar} diff: - {:baz :quux, :something "a long string?", :foo :bar, :another-key "and another value"} + {:fo :bar}

FAIL in (a-test) (humane_test_output_test.clj:10) FIXME, I fail. expected: {:foo :bar, :baz :quux} actual: {:fo :bar, :baz :quux} diff: - {:foo :bar} + {:fo :bar}

FAIL in (a-test) (humane_test_output_test.clj:13) FIXME, I fail. expected: (list? foo) actual: (not (list? {:another-key "and another value", :foo :bar, :something "a long string?", :baz :quux})) #+END_EXAMPLE

BONUS FEATURE

A test containing ~(is (= oops-i-only-gave-one-argument))~ will throw an exception. ** ClojureScript It is not necessary to activate humane-test-output with ClojureScript, but the behavior should be much the same as with Clojure. ** License #+BEGIN_EXAMPLE Copyright © Paul Stadig and Outpace Systems, Inc. All rights reserved.

Some small bits of code were taken from clojure.test and modified, and are Copyright © Rich Hickey. All rights reserved.

Distributed under the Eclipse Public License, the same as Clojure. #+END_EXAMPLE ** Acknowledgements I am grateful for design and implementation assistance from Bryce Covert.

Thanks to Miloslav Nenadál for the ClojureScript implementation.