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Hi! I try to build a Kotlin-JS project using version 1.3.40-eap-67 according to this example <https://youtrack.jetbrains.com/issue/KT-30528> . Test classes seem to not be compiled and the test isn't running. Where can I find an example of how to configure a test runner for this EAP version? Thank you.

Probably better to ask in <#C0B8L3U69|javascript>, there are devs from Kotlin JS team

Hi <@UK53YN45S>. You can try new test runner by adding this code to you `build.gradle` for multiplatform project:

```
kotlin {
    js { 
        browser()
        nodejs()
    }
}
```

For single platform project:

```
kotlin {
    target {
        browser()
        nodejs()
    }
}
```

`browser()` will create `jsBrowserTest` task, `nodejs()` - `jsNodeTest`. `jsTest` will run both.

Also you can configure some settings, for example browsers:

```
kotlin {
   js {
      browser {
        testTask {
            useKarma {
                useChromeHeadless()
                useChrome()
                useChromeCanary()
                usePhantomJS()
                useFirefox()
                useOpera()
                useSafari()
                useIe()
            }
        }
      }
   }
}
```

I’ll post some more info in <#C0B8L3U69|javascript> later.

By default tests not configured for compatibility.

Will those task be in dependencies for Gradle lifecycle tasks like test or check?

<@U0BKAPC0G> Thanks for the reply. I tried your recommendation for a single platform project, and now I see the following error: internal/modules/cjs/loader.js:584
    throw err;
    ^

Error: Cannot find module 'C:\Users\aliv0616\.gradle\yarn\yarn-v1.15.2\bin\yarn.js'

Probably it is <https://youtrack.jetbrains.com/issue/KT-31645>
It will be fixed in next EAP. Meanwhile, the workaround is to move everything from `C:\Users\aliv0616\.gradle\yarn\yarn-v1.15.2\yarn-v1.15.2` to `C:\Users\aliv0616\.gradle\yarn\yarn-v1.15.2`.