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scala - 是否有规范匹配器可以取消装箱选项和任一

转载 作者:行者123 更新时间:2023-12-04 11:28:02 25 4
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我创建了一个规范测试,以验证一些 JSON 解析。虽然测试效果很好,但感觉相当嘈杂。

我想知道规范中是否有现有的代码可以取消装箱选项和任一?

"twitter json to Scala class mapper" should {
"parsing a tweet" in {
TwitterJsonMapper.tweetP(tweetS) match {
case Right(t: Tweet) => {
implicit def unOption[T](t: Option[T]): T = t.get
implicit def unEither[T](t: Either[T,Throwable]): T = t match {case Left(left) => left ;case Right(t) => throw t}
"test id" in {
true must_== (t.id.get == 228106060337135617l)
}
"test id_str" in {
true must_== (t.id_str.get == "228106060337135617")
}
"test time" in {
true must_== (t.created_at.getHours == 13 )
}
}
case Left((pe: JsonParseException, reason: String)) => fail(reason + "\n" + pe)
}
}
}

//The Tweet is produced from JSON using Fasterxml's Jackson-Scala library.
//I want to use Option or Either monads over all child attributes - for the usual reasons.
case class Tweet(
@BeanProperty contributors: Option[String],
@BeanProperty coordinates: Option[String],

@BeanProperty @JsonDeserialize (
using = classOf[TwitterDateDeserializer]
) created_at: Either[Date,Throwable],
@BeanProperty favorited: Boolean = false,
//elided etc etc
@BeanProperty id_str: Option[String]
}

最佳答案

Option确实有一些特定的匹配器和 Either :

t.id must beSome(228106060337135617l)
t.id_str must beSome("228106060337135617")
t.created_at.left.map(_.getHours) must beLeft(13)

关于scala - 是否有规范匹配器可以取消装箱选项和任一,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11708905/

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