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intellij-ideajunitclojureleiningen

How do I create a new Leiningen Clojure project in Intellj using the jUnit test runner?

I created a new skeleton Leiningen project using Java 1.8 in IntelliJ IDEA 2018.2.6 (Build #IU-182.5107.16).

I got an Error: Could not find or load main class cucumber.api.cli.Main. I wanted to use jUnit instead so I didn't try fix the Cucumber dependency.

File > Project Stucture > Module:. Verified that the test folder is marked as Tests.

File > Project Structure > Libraries > + > From Maven: Added junit:junit:4.12 with Transitive dependencies and JavaDocs to my module.

Run > Edit Configurations:

  • Remove Cucumber Java configuration
  • Add jUnit configuration

Run/Debug Configurations for jUnit

When I run all tests, I am presented with an Empty test suite message.

I have tried rebuilding the project, checking for IntelliJ updates, invalidating the cache, using an absolute path in the Working directory in the project configurations modal.

When I run lein test in the terminal, the sample test is detected and the assertion is printed out.

Essentially, how do I create a new Leiningen Clojure project in Intellj using the jUnit test runner detects and runs my tests?

If you need it, I have pushed the source code of my example project to Github.

Solution

  • Update 2020:

    I no longer use Leiningen templates to create a new project (e.g. lein new app XXXXX). Instead, I have a template project that I clone using git, and I use as the basis for new Clojure and ClojureScript projects:

    Example of starting a new project:

     > git clone https://github.com/io-tupelo/clj-template.git  myproj
Cloning into 'myproj'...

    At this point, you can edit the project.clj and the source files to change and/or add namespaces, etc.

    Old Answer

    I don't create projects from within IntelliJ. I create them at the command line and then add them to IntelliJ/IDEA + Cursive.

    ~/tmp/demo > lein new app sample
Generating a project called sample based on the 'app' template.
~/tmp/demo > cd sample
~/tmp/demo/sample > ls -al
total 56
drwxrwxr-x 6 alan alan  4096 Nov 18 21:19 ./
drwxrwxr-x 3 alan alan  4096 Nov 18 21:19 ../
-rw-rw-r-- 1 alan alan   766 Nov 18 21:19 CHANGELOG.md
drwxrwxr-x 2 alan alan  4096 Nov 18 21:19 doc/
-rw-rw-r-- 1 alan alan    99 Nov 18 21:19 .gitignore
-rw-rw-r-- 1 alan alan   136 Nov 18 21:19 .hgignore
-rw-rw-r-- 1 alan alan 11219 Nov 18 21:19 LICENSE
-rw-rw-r-- 1 alan alan   359 Nov 18 21:19 project.clj
-rw-rw-r-- 1 alan alan   463 Nov 18 21:19 README.md
drwxrwxr-x 2 alan alan  4096 Nov 18 21:19 resources/
drwxrwxr-x 3 alan alan  4096 Nov 18 21:19 src/
drwxrwxr-x 3 alan alan  4096 Nov 18 21:19 test/

    Then within IntelliJ do

    File  ->  New  ->  Project from existing sources....

    in the pop-up window, navigate to the new dir and double-click on the project.clj file.

    1. Leave the root dir the same (~/tmp/demo.sample)
    2. Leave selection as sample:0.1.0-SNAPSHOT (this is taken from project.clj)
    3. Select your JDK (Java 17 at least, I hope!)
    4. Leave the Project Name the same (i.e. sample)
    5. Click Finish

    At this point, you can edit project.clj to add JUnit deps or anything else you want. This will then determine any mods you need to make in the ./test subdir tree.

    After doing

    lein new app sample

    you will see in sample/project.clj

    (defproject sample "0.1.0-SNAPSHOT"
  :description "FIXME: write description"
  :url "http://example.com/FIXME"
  :license {:name "Eclipse Public License"
            :url "http://www.eclipse.org/legal/epl-v10.html"}
  :dependencies [[org.clojure/clojure "1.8.0"]]
  :main ^:skip-aot sample.core
  :target-path "target/%s"
  :profiles {:uberjar {:aot :all}})

    The above is just the bare bones.

    For more info, please see: