2 files changed, 37 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/5255.v b/test-suite/bugs/closed/5255.v
new file mode 100644
index 0000000000..5daaf9edbf
--- /dev/null
+++ b/test-suite/bugs/closed/5255.v
@@ -0,0 +1,24 @@
+Section foo.
+  Context (x := 1).
+  Definition foo : x = 1 := eq_refl.
+End foo.
+
+Module Type Foo.
+  Context (x := 1).
+  Definition foo : x = 1 := eq_refl.
+End Foo.
+
+Set Universe Polymorphism.
+
+Inductive unit := tt.
+Inductive eq {A} (x y : A) : Type := eq_refl : eq x y.
+
+Section bar.
+  Context (x := tt).
+  Definition bar : eq x tt := eq_refl _ _.
+End bar.
+
+Module Type Bar.
+  Context (x := tt).
+  Definition bar : eq x tt := eq_refl _ _.
+End Bar.
diff --git a/test-suite/coqchk/univ.v b/test-suite/coqchk/univ.v
index 84a4009d7e..19eea94b19 100644
--- a/test-suite/coqchk/univ.v
+++ b/test-suite/coqchk/univ.v
@@ -33,3 +33,16 @@ Inductive finite_of_order T (D : T -> Type) (n : natural) :=
     (rank_injective : injective_in T natural D rank)
     (rank_onto :
        forall i, equivalent (less_than i n) (in_image T natural D rank i)).
+
+(* Constraints *)
+Universes i j.
+Inductive constraint1 : (Type -> Type) -> Type := mk_constraint1 : constraint1 (fun x : Type@{i} => (x : Type@{j})).
+Constraint i < j.
+Inductive constraint2 : Type@{j} := mkc2 (_ : Type@{i}).
+Universes i' j'.
+Constraint i' = j'.
+Inductive constraint3 : (Type -> Type) -> Type := mk_constraint3 : constraint3 (fun x : Type@{i'} => (x : Type@{j'})).
+Inductive constraint4 : (Type -> Type) -> Type
+  := mk_constraint4 : let U1 := Type in
+                      let U2 := Type in
+                      constraint4 (fun x : U1 => (x : U2)).