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Diffstat (limited to 'test/files/scalacheck/scan.scala')
-rw-r--r-- | test/files/scalacheck/scan.scala | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/files/scalacheck/scan.scala b/test/files/scalacheck/scan.scala new file mode 100644 index 0000000000..e9b25ce3df --- /dev/null +++ b/test/files/scalacheck/scan.scala @@ -0,0 +1,17 @@ +import org.scalacheck._ +import Prop._ +import Gen._ + + +object Test extends Properties("TraversableLike.scanLeft") { + property("scanLeft") = forAll { (xs: List[Int], z: Int) => { + val sums = xs.scanLeft(z)(_ + _) + (xs.size == 0) || sums.zip(sums.tail).map(x => x._2 - x._1) == xs + }} +} + + + + + + |