How to make "test" classes available in the "it" (integration test) configuration?

Question

I would like to share a helper trait between my "test" and "it" configurations in SBT, but I have not figured out how. Here is a minimal example: project/Build.scala ``` import sbt._ import Keys._ object MyBuild extends Build { val scalaTest = "org.scalatest" %% "scalatest" % "2.0" % "test,it" lazy val myProject = Project(id = "my-project", base = file(".")) .configs(IntegrationTest) .settings(Defaults.itSettings: _*) .settings( scalaVersion := "2.10.3", libraryDependencies ++= Seq( scalaTest ) ) } ``` src/test/scala/Helpers.scala ``` trait Helper { def help() { println("helping.") } } ``` src/test/scala/TestSuite.scala ``` import org.scalatest._ class TestSuite extends FlatSpec with Matchers with Helper { "My code" should "work" in { help() true should be(true) } } ``` src/it/scala/ItSuite.scala ``` import org.scalatest._ class ItSuite extends FlatSpec with Matchers with Helper { "My code" should "work" in { help() true should be(true) } } ``` then, in sbt, "test" works: ``` sbt> tes…

Accepted Answer

If you want to share code from `Test` configuration, it's probably better to create a custom test configuration from `Test`. See Custom test configuration.

Your `project/Build.scala` becomes:

```
import sbt._
import Keys._

object MyBuild extends Build {
  lazy val FunTest = config("fun") extend(Test)

val scalaTest = "org.scalatest" %% "scalatest" % "2.0" % "test"

lazy val myProject =
    Project(id = "my-project", base = file("."))
      .configs(FunTest)
      .settings(inConfig(FunTest)(Defaults.testSettings) : _*)
      .settings(
        scalaVersion := "2.10.3",
        libraryDependencies ++= Seq(
          scalaTest
        )
      )
}
```

Also rename `src/it/` to `src/fun/`. Now `fun:test` works:

```
> fun:test
helping.
[info] ItSuite:
[info] My code
[info] - should work
[info] Run completed in 245 milliseconds.
[info] Total number of tests run: 1
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 1, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
[success] Total time: 1 s, completed Dec 17, 2013 8:43:17 AM
```

How to make "test" classes available in the "it" (integration test) configuration?

Solution

Problem