Question

我有以下Play for Scala Controller注入JDBC连接：

class MyController @Inject() (db1: play.api.db.Database) extends Controller  {
    // some code
}

在我的application.conf我有相关的配置：

# JDBC configuration
  db.default.driver=com.mysql.jdbc.Driver
  db.default.url="jdbc:mysql://localhost:3306/db0001"
  db.default.username=root
  db.default.password=xxxxxxx

现在，我需要的是在ScalaTest测试中注入一个不同的数据库（也在application.conf中定义）。应在测试中声明如下：

val controller = new MyController (mockDB)

如何实现这一目标？

Answer 1

声明如下：

    val mockDB = Databases(
      driver = "com.mysql.jdbc.Driver",
      url = "jdbc:mysql://localhost/db0001"
    )

Answer 2

 val config  : Config = ConfigFactory.parseString(
    """test-db {
      |  driver = "slick.driver.H2Driver$"
      |  db = {
      |    driver = "org.h2.Driver"
      |    url = "jdbc:h2:mem:testDB"
      |  }
      |}
      |""".stripMargin)
  val dbConfig: DatabaseConfig[JdbcProfile] = DatabaseConfig.forConfig[JdbcProfile]("test-db", config)
val db = dbConfig.db

lazy val app = new GuiceApplicationBuilder()
    .overrides(bind[Database].toInstance(db))
    .build

Answer 3

您应该问自己：

您需要在数据库中运行真实查询吗？
嘲笑数据库是否足够？

如果对＃2的回答为“是”，则可以使用ScalaMock

class Test extends MockFactory {
   val mockDB = mock[DatabaseConfig[JdbcProfile]]
   (mockDb.db.run _) expects(*) returning(/*The value you want to return goes here*/)
    val controller = new MyController(mockDB)
}

ScalaMock Official Site

模拟在ScalaTest测试中播放JDBC连接

3 个答案: