2 files changed, 20 insertions, 0 deletions
diff --git a/test-suite/output/inference.out b/test-suite/output/inference.out
new file mode 100644
index 000000000..bca3b361a
--- /dev/null
+++ b/test-suite/output/inference.out
@@ -0,0 +1,6 @@
+P = 
+fun e : option L => match e with
+                    | Some cl => Some cl
+                    | None => None
+                    end
+     : option L -> option L
diff --git a/test-suite/output/inference.v b/test-suite/output/inference.v
new file mode 100644
index 000000000..968ea71a9
--- /dev/null
+++ b/test-suite/output/inference.v
@@ -0,0 +1,14 @@
+(* Check that types are not uselessly unfolded *)
+
+(* Check here that P returns something of type "option L" and not
+   "option (list nat)" *)
+
+Definition L := list nat.
+
+Definition P (e:option L) :=
+  match e with
+  | None => None
+  | Some cl => Some cl
+  end.
+
+Print P.