我正在尝试使用 scala 中的 Play 框架进行单元测试。我编写了一个类来检查配置是否正确(我有更多的错误处理,但我现在实际上使用此代码进行测试):
class TaskQueueConfig(conf: Configuration) {
val schedulingEnabled = conf.getBoolean("schedulingEnabled").get
val processingEnabled = conf.getBoolean("processingEnabled").get
val queueName = conf.getString("queue").get
}
我正在使用 play 2.1.1 的默认测试设置对此进行测试:
class ConfigTestSpec extends Specification with Mockito with CalledMatchers {
"TaskQueueConfig" should {
"verify calls" in {
val tqConf = mock[Configuration]
tqConf.getString("queue") returns Some("queueName")
tqConf.getBoolean("schedulingEnabled") returns Some(true)
tqConf.getBoolean("processingEnabled") returns Some(true)
Logger.error("setup done")
val config = new TaskQueueConfig(tqConf)
there was one(tqConf).getString("queue")
there were two(tqConf).getBoolean(any[String])
there were one(tqConf).getBoolean("schedulingEnabled")
there were one(tqConf).getBoolean("processingEnabled")
}
}
}
我收到以下错误:
[error] x verify calls
[error] The mock was not called as expected:
[error] configuration.getString$default$2();
[error] Wanted 1 time:
[error] -> at config.ConfigTestSpec$$anonfun$2$$anonfun$apply$4$$anonfun$apply$12.apply(ConfigTestSpec.scala:61)
[error] But was 2 times. Undesired invocation:
[error] -> at config.TaskQueueConfig.<init>(TaskQueueConfig.scala:10) (ConfigTestSpec.scala:61)
这很奇怪,因为代码非常孤立,TaskQueueConfig 中显然只有 1 个 conf.getString 调用。第 10 行是带有 getString 方法的行。第 61 行是带有“there was one(tQConf).getString”的行
我该如何解决这个问题?
(曾经和曾经没有区别)。
PS:我知道这个例子对测试毫无用处,但我有更复杂的配置,其中有一些规则需要测试。
更新 1
getString 方法有两个参数,第二个参数的默认值为 None(它的类型是 Option[Set[String]])。当我明确地将 None 添加到设置和验证中时,它仍然不起作用。但是当我添加时null
,我得到了它的工作。
val tqConf = mock[Configuration]
tqConf.getString("queue", null) returns Some("queueName")
tqConf.getBoolean("schedulingEnabled") returns Some(true)
tqConf.getBoolean("processingEnabled") returns Some(true)
val c = new TaskQueueConfig(tqConf)
there was one(tqConf).getString("queue", null)
there was one(tqConf).getString(any[String], any[Option[Set[String]]])
there were two(tqConf).getBoolean(any[String])
there was one(tqConf).getBoolean("schedulingEnabled")
there was one(tqConf).getBoolean("processingEnabled")
c.processingEnabled must beTrue
c.schedulingEnabled must beTrue
c.queueName must be("queueName")
所以我想现在的问题是,为什么我必须使用 null?