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> test helping. [info] TestSuite: [info] My code [info] - should work [info] Run completed in 223 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: 0 s, completed Dec 17, 2013 1:54:56 AM 

but "it:test" doesn't compile:

sbt> it:test [info] Compiling 1 Scala source to ./target/scala-2.10/it-classes... [error] ./src/it/scala/ItSuite.scala:3: not found: type Helper [error] class ItSuite extends FlatSpec with Matchers with Helper { [error]                                                   ^ [error] ./src/it/scala/ItSuite.scala:5: not found: value help [error]     help() [error]     ^ [error] two errors found [error] (it:compile) Compilation failed [error] Total time: 1 s, completed Dec 17, 2013 1:55:00 AM 

Answer 1

You can redefine the IntegrationTest Configuration in your project to extend the Test configuration instead of the Runtime Configuration (the default). This will make everything in your test configuration available to your IntegrationTest configuration.

import sbt._ import Keys._  object MyBuild extends Build {    val scalaTest = "org.scalatest" %% "scalatest" % "2.0" % "test,it"    lazy val IntegrationTest = config("it") extend(Test)    lazy val myProject =     Project(id = "my-project", base = file("."))       .configs(IntegrationTest)       .settings(Defaults.itSettings: _*)       .settings(         scalaVersion := "2.10.3",         libraryDependencies ++= Seq(           scalaTest         )       ) } 

Answer 2

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