Issue
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
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.
- Leave the root dir the same (
~/tmp/demo.sample) - Leave selection as
sample:0.1.0-SNAPSHOT(this is taken fromproject.clj) - Select your JDK (Java 17 at least, I hope!)
- Leave the Project Name the same (i.e.
sample) - 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:
Answered By - Alan Thompson
Answer Checked By - Katrina (JavaFixing Volunteer)