2 files changed, 14 insertions, 0 deletions
diff --git a/test/files/run/promotion.check b/test/files/run/promotion.check
new file mode 100644
index 0000000000..59d4f84f5f
--- /dev/null
+++ b/test/files/run/promotion.check
@@ -0,0 +1,2 @@
+B
+List(2.0)
diff --git a/test/files/run/promotion.scala b/test/files/run/promotion.scala
new file mode 100644
index 0000000000..82b5265143
--- /dev/null
+++ b/test/files/run/promotion.scala
@@ -0,0 +1,12 @@
+
+/** Test that unboxing and promotion (from int to double) work together.
+ *  Was bug 891.
+ */
+object Test {
+  def main(args:Array[String]):Unit = {
+    Console println
+    List(Pair(1,2.0)).map[double]({ x  => x match {
+      case Pair(a, x) => Console.println("B"); x * a
+    }});
+  }
+}