我有以下使用 PlaySlick 连接到数据库的 DAO。该类有一个read
我需要用 ScalaTest 测试的方法。我的问题是我不知道如何模拟DatabaseConfigProvider
在UsersDAO
类中注入它并测试read
方法。这是要测试的类:
class UsersDAO @Inject()(@NamedDatabase("mydb")
protected val dbConfigProvider: DatabaseConfigProvider)
extends with HasDatabaseConfigProvider[JdbcProfile] {
import driver.api._
val db1 = dbConfigProvider.get[JdbcProfile].db
def read (sk: Int) = {
val users = TableQuery[UserDB]
val action = users.filter(_.sk === sk).result
val future = db1.run(action.asTry)
future.map{
case Success(s) =>
if (s.length>0)
Some(s(0))
else
None
case Failure(e) => throw new Exception ("Failure: " + e.getMessage)
}
}
}
这是我编写测试的尝试:
class UserDAOTest extends PlaySpec with OneAppPerSuite {
implicit override lazy val app = new GuiceApplicationBuilder().
configure(
Configuration.from(
Map(
"slick.dbs.mydb.driver" -> "slick.driver.MySQLDriver$",
"slick.dbs.mydb.db.driver" -> "com.mysql.jdbc.Driver",
"slick.dbs.mydb.db.url" -> "jdbc:mysql://localhost:3306/control",
"slick.dbs.mydb.db.user" -> "root",
"slick.dbs.mydb.db.password" -> "xxxxx"
)
)
).build
val dbConfigProvider = app.injector.instanceOf[DatabaseConfigProvider]
"Example " should {
"be valid" in {
val controller = new UsersDAO(dbConfigProvider)
val result = controller.read(1)
println(result)
}
}
当我运行测试时,它失败并显示以下错误消息:
com.google.inject.ConfigurationException:Guice 配置错误:
1) 没有绑定 play.api.db.slick.DatabaseConfigProvider 的实现。同时定位 play.api.db.slick.DatabaseConfigProvider