2 files changed, 35 insertions, 0 deletions
diff --git a/test/files/pos/scan.scala b/test/files/pos/scan.scala
new file mode 100644
index 0000000000..98361b9167
--- /dev/null
+++ b/test/files/pos/scan.scala
@@ -0,0 +1,18 @@
+
+
+
+
+object Test {
+
+  def main(args: Array[String]) {
+    val lst = List(1, 2, 3, 4, 5)
+
+    assert(lst.scanLeft(0)(_ + _) == List(0, 1, 3, 6, 10, 15))
+    assert(lst.scanRight(0)(_ + _) == List(0, 5, 9, 12, 14, 15))
+
+    val emp = List[Int]()
+    assert(emp.scanLeft(0)(_ + _) == List(0))
+    assert(emp.scanRight(0)(_ + _) == List(0))
+  }
+
+}
+\ No newline at end of file
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
+  }}
+}
+
+
+
+
+
+