1 files changed, 32 insertions, 0 deletions
diff --git a/tests/run/t6271.scala b/tests/run/t6271.scala
new file mode 100644
index 000000000..e8047a9be
--- /dev/null
+++ b/tests/run/t6271.scala
@@ -0,0 +1,32 @@
+object Test extends dotty.runtime.LegacyApp {
+  def filterIssue = {
+    val viewed : Iterable[Iterable[Int]] = List(List(0).view).view
+    val filtered = viewed flatMap { x => List( x filter (_ > 0) ) }
+    filtered.iterator.toIterable.flatten
+  }
+  def takenIssue = {
+    val viewed : Iterable[Iterable[Int]] = List(List(0).view).view
+    val filtered = viewed flatMap { x => List( x take 0 ) }
+    filtered.iterator.toIterable.flatten
+  }
+  def droppedIssue = {
+    val viewed : Iterable[Iterable[Int]] = List(List(0).view).view
+    val filtered = viewed flatMap { x => List( x drop 1 ) }
+    filtered.iterator.toIterable.flatten
+  }
+  def flatMappedIssue = {
+    val viewed : Iterable[Iterable[Int]] = List(List(0).view).view
+    val filtered = viewed flatMap { x => List( x flatMap (_ => List()) ) }
+    filtered.iterator.toIterable.flatten
+  }
+  def slicedIssue = {
+    val viewed : Iterable[Iterable[Int]] = List(List(0).view).view
+    val filtered = viewed flatMap { x => List( x slice (2,3) ) }
+    filtered.iterator.toIterable.flatten
+  }
+  filterIssue
+  takenIssue
+  droppedIssue
+  flatMappedIssue
+  slicedIssue
+}