带插件的最小完整SBT项目

my-project/
  src/
    main/
      resources/
      scala/
        com/
          example/
            Hello.scala
    test/
      resources/
      scala/
        com/
          example/
            HelloSpec.scala
  build.sbt

name := "my-project"

version := "1.0"

scalaVersion := "2.12.10"

libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.8" % "test"

package com.example

object Hello {
  def main(args: Array[String]): Unit = {
    println("Hello, world!")
  }
}

package com.example

import org.scalatest.flatspec.AnyFlatSpec
import org.scalatest.matchers.should.Matchers

class HelloSpec extends AnyFlatSpec with Matchers {
  "Hello" should "say hello" in {
    Hello.main(Array())
    assert(true)
  }
}