【发布时间】：2015-04-09 12:33:26
【问题描述】：
嗨，我是单元测试的新手，我想使用模拟对象对其进行测试。我想测试数据是否成功存储在 mongoDB 中 这是我的代码
package models.RegularUserModels
import models.UserModels.UserStatus._
// User will give information to Signup
class DirectUser() extends RegularUser{
override val uuid = "direct123"
override val firstName ="sara"
lastName = "waheed"
email = "user@example.com"
secondryEmail =Some("user2@example.com")
userStatus =ACTIVE
}
这是我要测试的类
package models.RegularUserModels
import com.mongodb.casbah.Imports._
import com.mongodb.QueryBuilder
class directUserStore {
def write(directuser:DirectUser) ={
val serverAddress=new ServerAddress("Localhost",27017)
val client= MongoClient(serverAddress)
val CourseDB = client("arteciatedb")//get database Name
val collection = CourseDB("directUser")//get collection Name
collection.drop()
collection.insert(new BasicDBObject("_id",directuser.uuid)
.append("Email",directuser.email)
.append("SecondryEmail",directuser.secondryEmail)
.append("FirstName",directuser.firstName)
.append("LastName",directuser.lastName)
.append("UserStatus",directuser.userStatus.toString())
)
}
}
制作一个scala对象来检查代码是否正常工作
object Test extends App{
val directUser= new DirectUser()
/////////////////////////DirectUser mongo DB//////////////////////////
//insert in mongoDB
val directUserStore= new directUserStore
directUserStore.write(directUser)
}
现在我想对 DirectUserStore.scala 类进行测试，所以在 sbt 的 src/test 目录中我创建了这个类
package testingModels.RegularUserModels
import models._
import models.RegularUserModels._
import org.scalatest.Matchers._
import org.scalatest.MustMatchers._
import org.scalatest.Spec
import org.scalatest.FunSpec
import org.easymock.EasyMock._
import org.scalatest.mock.EasyMockSugar
class DirectUserStoreTest extends FunSpec with org.scalatest.MustMatchers with EasyMockSugar {
describe("A DirectUserStoreTest"){
it("should use easy mock to mock out the DAO classes")
{
val DirectUserMock= createMock(classOf[directUserStore])
/* val directUserStore= new directUserStore
//replay, more like rewind
replay(DirectUserMock)
//make the call
directUserStore.write(DirectUserMock)
//verify that the calls expected were made
verify(DirectUserMock)
*/ val directUser = new DirectUser
expecting{
DirectUserMock.write(directUser)
}
whenExecuting(DirectUserMock) {
val directUserStore= new directUserStore
directUserStore.write(directUser)
}
}
}
}
但是当我在 sbt 中输入 test 时，我的测试失败了
[info] DirectUserStoreTest:
[info] A DirectUserStoreTest
[info] - should use easy mock to mock out the DAO classes *** FAILED ***
[info] java.lang.IllegalStateException: missing behavior definition for the preceding method call:
[info] directUserStore.write(models.RegularUserModels.DirectUser@1fe2433b)
[info] Usage is: expect(a.foo()).andXXX()
[info] at org.easymock.internal.MocksControl.replay(MocksControl.java:173)
[info] at org.easymock.EasyMock.replay(EasyMock.java:2074)
[info] at org.scalatest.mock.EasyMockSugar$$anonfun$whenExecuting$2.apply(EasyMockSugar.scala:421)
[info] at org.scalatest.mock.EasyMockSugar$$anonfun$whenExecuting$2.apply(EasyMockSugar.scala:420)
[info] at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
[info] at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:35)
[info] at org.scalatest.mock.EasyMockSugar$class.whenExecuting(EasyMockSugar.scala:420)
[info] at testingModels.RegularUserModels.DirectUserStoreTest.whenExecuting(DirectUserStoreTest.scala:11)
[info] at testingModels.RegularUserModels.DirectUserStoreTest$$anonfun$1$$anonfun$apply$mcV$sp$1.apply$mcV$sp(DirectUserStoreTest.scala:28)
[info] at testingModels.RegularUserModels.DirectUserStoreTest$$anonfun$1$$anonfun$apply$mcV$sp$1.apply(DirectUserStoreTest.scala:14)
[info] ...
[info] Run completed in 2 seconds, 50 milliseconds.
[info] Total number of tests run: 1
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 0, failed 1, canceled 0, ignored 0, pending 0
[info] *** 1 TEST FAILED ***
请指导我如何实现我的目标。我知道我犯了一些大错误，但我需要指导，因此这是我一生中写的第一个测试 请帮忙
【问题讨论】：
-
对于这样的持久层测试，我认为明确你想要检查的内容很重要。使用当前的模拟，您可以测试用户是否作为参数传递，我不确定这是否真的有价值。
-
我想测试数据是否插入到mongoDB中......我插入的值是一样的
-
val DirectUserMock= createMock(classOf[directUserStore])如果您创建一个模拟，您将如何尝试测试directUserStore？您似乎对模拟实际上是什么感到困惑。您使用Foo的模拟来测试依赖于Foo的对象Bar。如果你想测试你不想模拟的 MongoDB 的实际插入，你想测试你的实际代码。 -
正如 vptheron 所说，如果您想在
write之后测试 MongoDB 中存在的数据，那么它将是集成测试并需要一个测试数据库（可能还有设置它的装置）。对我来说有价值的是测试您的持久层是否根据您的函数的参数适当地调用 Mongo 驱动程序：检查持久层是否正在从自定义模型 BSON 执行适当的转换并按预期调用驱动程序插入。检查在 Mongo 集合上插入后，数据是否存在于该集合中，这对 MongoDB 引擎进行了相当大的测试。 -
非常感谢您的帮助
标签： mongodb scala unit-testing easymock