scala – 如何在sbt中所有模块的所有测试之前运行任务
发布时间:2020-12-16 08:43:39  所属栏目:安全  来源:网络整理 
            导读:我有一个多模块播放!使用sbt构建的应用程序我在CI服务器上有并行测试和演进的问题:当sbt开始测试并首次启动evolution脚本时,其他因为“数据库’默认’处于不一致状态”一段时间失败(直到进化脚本停止). 我知道如何手动执行evolutions以及如何从sbt运行它们
                
                
                
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 我有一个多模块播放!使用sbt构建的应用程序我在CI服务器上有并行测试和演进的问题:当sbt开始测试并首次启动evolution脚本时,其他因为“数据库’默认’处于不一致状态”一段时间失败(直到进化脚本停止). 
  
  我知道如何手动执行evolutions以及如何从sbt运行它们,但我不知道如何将此配置插入sbt以确保仅在所有模块的所有测试之前应用演变一次. 作为参考我正在使用以下运行演变: object ApplyEvolutions extends App {
  OfflineEvolutions.applyScript(
    new File("."),this.getClass.getClassLoader,args.headOption.getOrElse("default"))
}我的sbt设置: val runEvolution = taskKey[Unit]("Applies evolutions")
lazy val runEvolutionTask = runEvolution := {
  val log = streams.value.log
  val dbName = "default"
  Run.executeTrapExit( {
    log.info(s"Applying evolutions for database $dbName")
    Run.run("controllers.ApplyEvolutions",(fullClasspath in Compile).value.map { _.data },Seq(dbName),log
    )(runner.value)
  },log )
}
lazy val runEvolutionsBeforeTests = Seq(
  Tasks.runEvolutionTask,(test in Test) <<= (test in Test) dependsOn Tasks.runEvolution
)解决方法
 tl; dr使用别名 
  
  我用的是SBT 0.13.2-M3. [task-dependson]> about
[info] This is sbt 0.13.2-M3
[info] The current project is {file:/Users/jacek/sandbox/so/task-dependsOn/}task-dependson 0.1-SNAPSHOT
[info] The current project is built against Scala 2.10.3
[info] Available Plugins: sbt.plugins.IvyModule,sbt.plugins.JvmModule,sbt.plugins.GlobalModule,com.typesafe.sbt.SbtGit,com.typesafe.sbt.SbtProguard,growl.GrowlingTests,org.sbtidea.SbtIdeaPlugin,sbtman.Plugin,np.Plugin,com.timushev.sbt.updates.UpdatesPlugin
[info] sbt,sbt plugins,and build definitions are using Scala 2.10.3这是一个任务的例子 – sayHelloT–在测试之前在所有子项目中执行一次.我使用Specs2作为测试框架. import java.util.concurrent._
lazy val a = project
lazy val b = project
lazy val sayHelloT = taskKey[Unit]("Say Hello")
sayHelloT := {
  val log = streams.value.log
  log.info("Sleeping for 5 secs...")
  TimeUnit.SECONDS.sleep(5)
  log.info("Hello,my friend")
}
libraryDependencies in ThisBuild += "org.specs2" %% "specs2" % "2.3.10" % "test"
scalacOptions in Test ++= Seq("-Yrangepos")
addCommandAlias("sht",";sayHelloT; test")正如你所看到的,有两个子项目 – a和b – 以及一个将执行sayHelloT的别名sht,并且只有在成功完成后才需要5秒,测试开始. [task-dependson]> sht [info] Sleeping for 5 secs... [info] Hello,my friend [success] Total time: 5 s,completed Mar 12,2014 10:19:39 PM [info] ASpec [info] [info] A project should [info] + contain 11 characters [info] [info] Total for specification ASpec [info] Finished in 205 ms [info] 1 example,0 failure,0 error [info] Passed: Total 0,Failed 0,Errors 0,Passed 0 [info] No tests to run for task-dependson/test:test [info] Passed: Total 1,Passed 1 [info] BSpec [info] [info] B project should [info] + contain 11 characters [info] [info] Total for specification BSpec [info] Finished in 240 ms [info] 1 example,0 error [info] Passed: Total 1,Passed 1 [success] Total time: 3 s,2014 10:19:42 PM (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! | 
