Hi, Why do I get this error <https://pl.kotl.in/n...

# getting-started

[test opty]

Hi,

Why do I get this error https://pl.kotl.in/n8eiamb4K ?
I'm trying to use testing.
Probably there's no already built-in package named atomictest, right?

[Filipp Zhinkin]

Only a few libraries are available in the playground: https://github.com/JetBrains/kotlin-compiler-server/blob/3b1f86640f87bb4e17ce3a8cb6434201d42a4aa7/dependencies/build.gradle.kts#L103

atomictest package belongs to none of them, thus the error.

[test opty]

To use them, say junit, should I use import libs.junit?
Didn't work.

[Filipp Zhinkin]

You can refer JUnit4 javadoc to find appropriate package names: https://junit.org/junit4/javadoc/latest/

[Klitos Kyriacou]

By the way, when you see libs.junit (for example), that refers to the definition of libs.junit in the file .../gradle/libs.versions.toml. There, you will find the dependency definition and search for its documentation.