Simplify running unit tests

[ennishol]

trafficstars

I have a jbang script.java and TestScript.java, which includes //SOURCES script.java. build.gradle however doesn't contain

test {useJUnitPlatform()}

and this has to be added to each new project or when a project is regenerated. It would be nice, if the generated build.gradle would get it automatically.

After fixing build.gradle file, I can run the test from the IDE, but it would be also nice to be able to run it from the command line. I've used jbang junit.java -f TestScript.java to run the test:

///usr/bin/env jbang "$0" "$@" ; exit $?
//DEPS org.junit.platform:junit-platform-console-standalone:1.6.2
import org.junit.platform.console.ConsoleLauncher;
import static java.lang.System.*;

public class junit {   public static void main(String... args) {        ConsoleLauncher.main(args);    }}

but it doesn't pick up the tests

[maxandersen]

Have you tried using 'jbang -t junit@jbangdev yourscript.java'

?

It provides the scaffolding for running a junit test.

About the gradle part - that does seem to make sense to add albeit not really grokking what that does if you already have a dependency on junit in your java file ?

[ennishol]

'jbang -t junit@jbangdev yourscript.java Unknown option: '-t'

[ennishol]

without test {useJUnitPlatform()} in gradle.build test are not found and not executed in IDE

[maxandersen]

Sorry - missing init.

jbang init -t junit@jbangdev yourscript.java

[ennishol]

Used jbang init -t junit@jbangdev yourscript.java

1. Problem one:

• on command line run the test all ok,
• then change yourscript to return wrong value,
• re-run the test and it does not fail: yourscript.java is not re-compiled if the test is re-executed

2. Problem in IDE still remains

Execution failed for task ':test'.
> No tests found for given includes: [yourscriptTest](--tests filter)

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

after adding test {useJUnitPlatform()} it works

[maxandersen]

Ah yes. We should include sources in dirty check.

Until then run with jbang --fresh to force compile.

I'll investigate why ide can't just run tests when everything is on the classpath.

[maxandersen]

how are you running the tests ? in intellij I can run them just fine, without changing build.gradle.

[ennishol]

e.g. with a click on the line public class testTest { to execute all tests in the file. or with Alt+Enter -> run as in your screenshot

[maxandersen]

Weird. Just works for me.

[maxandersen]

Ah - you probably have "run tests via gradle" enabled.

I always turn that off as it's just too slow.

That must be the difference.

[ennishol]

yes, I think these are the default settings in idea. I generated a fresh project (java 17, gradle 7.3.3) with jbang as above, and gradle settings in idea are as below. Do you change the settings every time?

[maxandersen]

well its a global setting apparently as its been over a year since I changed it as it was just too slow for me :)

[maxandersen]

I think we should be able to add that default if junit dependencies detected...

[ennishol]

and maybe also detect current SDK? I've generated the project with JDK 17 and as you can see in the screenshot above 16 is set

[maxandersen]

Yeah. It's been a long standing issue since when I said it to 17 gradle starts failing. Maybe gradle 7 fixed that.