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package xyz.driver.core
import org.scalacheck.{Arbitrary, Gen}
import org.scalatest.prop.Checkers
import org.scalatest.{FlatSpec, Matchers}
import xyz.driver.core.date.Date
class DateTest extends FlatSpec with Matchers with Checkers {
val dateGenerator = for {
year <- Gen.choose(0, 3000)
month <- Gen.choose(0, 11)
day <- Gen.choose(1, 31)
} yield Date(year, date.tagMonth(month), day)
implicit val arbitraryDate = Arbitrary[Date](dateGenerator)
it should "have ordering defined correctly" in {
Seq(Date.fromString("2013-05-10"),
Date.fromString("2020-02-15"),
Date.fromString("2017-03-05"),
Date.fromString("2013-05-12")).sorted should
contain theSameElementsInOrderAs Seq(Date.fromString("2013-05-10"),
Date.fromString("2013-05-12"),
Date.fromString("2017-03-05"),
Date.fromString("2020-02-15"))
check { dates: List[Date] =>
dates.sorted.sliding(2).filter(_.size == 2).forall {
case Seq(a, b) =>
if (a.year == b.year) {
if (a.month == b.month) {
a.day < b.day
} else {
a.month < b.month
}
} else {
a.year < b.year
}
}
}
}
}
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