sbt/internal/util-complete/src/test/scala/DefaultParsersSpec.scala

30 lines
901 B
Scala

/*
* sbt
* Copyright 2023, Scala center
* Copyright 2011 - 2022, Lightbend, Inc.
* Copyright 2008 - 2010, Mark Harrah
* Licensed under Apache License 2.0 (see LICENSE)
*/
package sbt.internal.util
package complete
import org.scalacheck.*, Gen.*, Prop.*
object DefaultParsersSpec extends Properties("DefaultParsers") {
import DefaultParsers.{ ID, isIDChar, matches, validID }
property("∀ s ∈ String: validID(s) == matches(ID, s)") =
forAll((s: String) => validID(s) == matches(ID, s))
property("∀ s ∈ genID: matches(ID, s)") = forAll(genID)(s => matches(ID, s))
property("∀ s ∈ genID: validID(s)") = forAll(genID)(s => validID(s))
private val chars: Seq[Char] = Char.MinValue to Char.MaxValue
private val genID: Gen[String] =
for {
c <- oneOf(chars filter (_.isLetter))
cs <- listOf(oneOf(chars filter isIDChar))
} yield (c :: cs).mkString
}