1 files changed, 13 insertions, 0 deletions
diff --git a/tests/pos/t2939.scala b/tests/pos/t2939.scala
new file mode 100644
index 000000000..57dd52024
--- /dev/null
+++ b/tests/pos/t2939.scala
@@ -0,0 +1,13 @@
+import collection._
+
+object Proxies {
+  class C1 extends MapProxy[Int,Int] { def self = Map[Int,Int]() }
+  class C2 extends mutable.MapProxy[Int,Int] { def self = mutable.Map[Int,Int]() }
+  class C3 extends immutable.MapProxy[Int,Int] { def self = immutable.Map[Int,Int]() }
+
+  class C4 extends SetProxy[Int] { def self = Set[Int]() }
+  class C5 extends mutable.SetProxy[Int] { def self = mutable.Set[Int]() }
+  class C6 extends immutable.SetProxy[Int] { def self = immutable.Set[Int]() }
+
+  class C7 extends SeqProxy[Int] { def self = Seq[Int]() }
+}