如果它们的差异小于1秒，如何使用specs2断言Date等于另一个Date？

Question

我正在编写specs2测试，需要比较两个日期：

import java.util.Date

val date1: Date = getDate1();
val date2: Date = getDate2();

date1 must beEqualToAnotherDate(date2, 1.second)

没有这样的beEqualToAnotherDate匹配器，我怎么能在specs2中有效地做同样的事情呢？

Answer 1

您可以使用必须在之间：

val millis = date2.getTime()

date1.getTime() must beBetween(millis - 500, millis + 500)

Answer 2

如果您想要自定义匹配器，可以尝试以下方法：

import java.util.Date

import org.specs2.matcher.{
  Expectable,
  Matcher,
  MatchResult,
  MatchersImplicits,
  Specification
}

object MySpecs extends Specification with MatchersImplicits {

  def beCloseInTimeTo(date: Date, timeDiff: Int) = new Matcher[Date] {
    def apply[D <: Date](e: Expectable[D]) = 
      result((e.value.getTime - date.getTime) < timeDiff,
        "Dates are nearly at the same time",
        "Dates are different",
        e)
  }

  dateA must beCloseInTimeTo(dateB, timeInMillis)
}