unicode string generator close scalaprops#26

fommil · Jan 17, 2022 · 5da69c9 · 5da69c9
1 parent 29a51c7
commit 5da69c9
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/gen/src/main/scala/scalaprops/Gen.scala b/gen/src/main/scala/scalaprops/Gen.scala
@@ -410,6 +410,17 @@ object Gen extends GenInstances0 {
  val asciiString: Gen[String] =
  genString(asciiChar)
 
+ val unicodeString: Gen[String] = {
+ val chars = Gen.choose(0, 0x10FFFF).map { cp =>
+ if (Character.isBmpCodePoint(cp)) {
+ if (cp < 0xD800) List(cp.toChar)
+ else List(0)
+ }
+ else List(Character.highSurrogate(cp), Character.lowSurrogate(cp))
+ }
+ Gen.listOf(chars).map(_.flatten.mkString)
+ }
+
  implicit val genUnit: Gen[Unit] =
  value(())