open:kaocha [EL]

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# kaocha

{{tag>clojure test}}

[[lambdaisland]]/[[kaocha]] is a comprehensive test runner that support unit testing and [[clojure.spec]] generative testing. [[Clojure]] and [[ClojureScript]] languages are supported.

### watch

<code clojure>
clj -M:test-kaocha --watch
</code>


### bin/kaocha 파일 생성

<code shell>
#!/usr/bin/env bash

clojure -J-Xmx512m -M:test-kaocha -m kaocha.runner --config-file test/tests.edn "$@"
</code>

### test/test/edn 파일 생성

<code clojure>
#kaocha/v1 {}
</code>


### deps.edn

<code clojure>
:test/runner
  {:extra-paths ["test"]
   :extra-deps  {lambdaisland/kaocha {:mvn/version "1.0.700"}}
   :main-opts   ["-m" "kaocha.runner"]}
</code>

### Running tests

With a [[deps.edn]] project with tests under the standaart [[test]] directory and using [[-test]] postfix on test names, then all that is required is the [[kaocha]] command

<code shell>
bin/kaocha
</code>

### Plugins

Much of the functionality of Kaocha is provide by plugins

- [[profiling]] - lists the slowest test for each test category
- [[cucumber]] - [[bdd]] style test
- [[junit-xml reports]] - format used by Continuouis Integratino servers to display results


### Profiling

Show the 3 slwest tests for each category of test, after the test results

As a command line option:

<code shell>
bin/kaocha --plugin kaocah.plugin/profiling
</code>

or added to the [[test.edn]] configuration

<code clojure>
#kaocha/v1
{:plugins [:kaocha.plugin/profiling]}
</code>









## Refs

- https://github.com/lambdaisland/kaocha
- https://practical.li/clojure/testing/test-runners/kaocha-test-runner.html