我有以下使用PlaySlick连接到数据库的DAO。该类有一个方法read
,我需要使用ScalaTest进行测试。我的问题是我不知道如何模拟DatabaseConfigProvider
将它注入UsersDAO
类并测试read
方法。这是类测试:在ScalaTest中注入PlaySlick数据库连接
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)
}
}
}
,这是我尝试写测试:
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)
}
}
当我运行失败,出现以下错误消息的测试:
com.google.inject.ConfigurationException: Guice configuration errors:
1) No implementation for play.api.db.slick.DatabaseConfigProvider was bound. while locating play.api.db.slick.DatabaseConfigProvider
挣扎与完全相同的问题=> http://stackoverflow.com/questions/41369252/scala-play-and-scalatest-directory-structure-mismatch –
'DatabaseConfigProvider.get [JdbcProfile](“mydb”)'? –
@ insan -e这会引发错误:'type mismatch;找到:slick.backend.DatabaseConfig [slick.driver.JdbcProfile]必需:play.api.db.slick.DatabaseConfigProvider' – ps0604