Configuration for Unit Testing deps.edn projects

clojure.test namespace is part of the Clojure standard library, so org.clojure/clojure is the only dependency required in the project configuration.

{:deps {org.clojure/cloure {:mvn/version "1.10.3"}}}

Unit tests code should reside under the test directory of a project. Project configuration should include the test path only during development or specific test runs. The test directory should not be part of the main classpath used to package a project for deployment.

practicalli clojure-deps-edn user level configuration

practicalli/clojure-deps-edn user-level configuration contains several aliases for Clojure and ClojureScript test runners, each alias includes the test directory as an :extra-path.

:env/test alias is also provided, which simply adds the test directory to the class path. The :env/test alias is useful in concert with other aliases or for editors that have their own built in test runners (e.g. CIDER).

Add the following aliases to the Clojure CLI tools user wide configuration, (e.g. ~/.clojure/deps.edn), or to the project deps.edn file.

Alias to include the test directory

To use a test runners with a deps.edn projects, the test directory should be on the classpath.

The test directory should be included as an alias. If the test path were in the main paths configuration of deps.edn then the unit tests would be included in the packaged project, i.e jar or uberjar.

practicalli/clojure-deps-edn defines an environment alias to include the test path.

:aliases
{
  :env/test
  {:extra-paths ["test"]}
}

Alias to run a REPL with nREPL support

Run a REPL using nREPL server for access by cider-connect-clj that also includes the test directory in the class path

An alias to run a REPL with nREPL support

:middleware/cider-clj
  {:extra-deps {nrepl/nrepl       {:mvn/version "0.8.3"}
                cider/cider-nrepl {:mvn/version "0.25.7"}}
   :main-opts  ["-m" "nrepl.cmdline"
                "--middleware" "[cider.nrepl/cider-middleware]"]}

Start a REPL process with nREPL server and Cider support libraries for Cider and Calva

clojure -M:middleware/cider-clj

Alias to run a Rebel REPL with nREPL support

rebel readline with nrepl for editor connection to REPL

CIDER: run cider-connect-clj and expressions evaluated in rebel are also available from CIDER/Emacs/Spacemacs

:repl/rebel-nrepl
  {:extra-deps {nrepl/nrepl                {:mvn/version "0.8.3"}
                cider/cider-nrepl          {:mvn/version "0.25.7"}
                com.bhauman/rebel-readline {:mvn/version "0.1.4"}}
   :main-opts  ["-m" "nrepl.cmdline"
                "--middleware" "[cider.nrepl/cider-middleware]"
                "-i"
                "-f" "rebel-readline.main/-main"]}

Start a REPL process with Rebel terminal UI, with nREPL server and Cider support libraries for Cider and Calva.

clojure -M:repl/rebel-nrepl

Cognitect labs Clojure test runner

:test/cognitect is a simple to use test runner for Clojure projects.

clojure -M:test/cognitect

kaocha unit test and clojure spec runner

:test-runner/kaocha alias unit test runner that also supports Clojure Spec functional tests. the kaocha test runner on the current project. Add a test.edn file to configure which tests are run by kaocha.

clojure -M:test/kaocha

Cider Test Runner

Cider test runner is a convenient way to run Clojure unit tests using the REPL. The test directory must be included in the classpath when running the REPL.

:env/test alias will add the test directory, which Cider test runner requires to locate the test code.

:middleware/cider-clj includes the nrepl and cider-nrepl libraries and starts an nREPL server connected to the REPL

Use cider-connect to connect to the Clojure REPL process started in a terminal window with the following command:

clojure -M:env/test:middleware/cider-clj

Use the :repl/rebel-nrepl alias to also run a Rebel UI for the REPL in the terminal.

clojure -M:env/test:repl/rebel-nrepl

Alternatively, use cider-jack-in and create a .dir-locals.el file to configure a default alias when running deps.edn projects from Emacs CIDER / Spacemacs.

((clojure-mode . ((cider-clojure-cli-aliases . ":env/test"))))

Ensure the .dir-locals.el file is loaded using revert-buffer on an existing project buffer or open a new file from the project.

References

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