如何使用 jUnit 测试运行程序在 Intellj 中创建新的 Leiningen Clojure 项目？

Question

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.

Answer 1

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Update 2020:

I no longer use Leiningen templates to create a new project (eg 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:

• Clojure template project
• ClojureScript template project

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.

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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 10 at least, I hope!)
4. Leave the Project Name the same (ie 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.

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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:

• The Clojure Cookbook and the print book
• Living Clojure
• Getting Clojure