3 files changed, 48 insertions, 0 deletions
diff --git a/test-suite/failure/autorewritein.v b/test-suite/failure/autorewritein.v
new file mode 100644
index 0000000000..dc17742a7d
--- /dev/null
+++ b/test-suite/failure/autorewritein.v
@@ -0,0 +1,15 @@
+Variable Ack : nat -> nat -> nat.
+
+Axiom Ack0 : forall m : nat, Ack 0 m = S m.
+Axiom Ack1 : forall n : nat, Ack (S n) 0 = Ack n 1.
+Axiom Ack2 : forall n m : nat, Ack (S n) (S m) = Ack n (Ack (S n) m).
+
+Hint Rewrite Ack0 Ack1 Ack2 : base0.
+
+Lemma ResAck2 : forall H:(Ack 2 2 = 7 -> False), H=H  -> False.
+Proof.
+  intros.
+  autorewrite with base0 in * using try (apply H1;reflexivity).
+
+
+
diff --git a/test-suite/success/autorewritein.v b/test-suite/success/autorewritein.v
index 8126e9e4ba..2f7d86dae1 100644
--- a/test-suite/success/autorewritein.v
+++ b/test-suite/success/autorewritein.v
@@ -18,3 +18,12 @@ Proof.
   autorewrite with base0 in H using try (apply H1; reflexivity).
 Qed.
 
+Lemma ResAck2 : forall H:(Ack 2 2 = 7 -> False), H=H  -> False.
+Proof.
+  intros.
+  autorewrite with base0 in *;
+    apply H1;reflexivity.
+Qed.
+
+
+
diff --git a/test-suite/success/replace.v b/test-suite/success/replace.v
new file mode 100644
index 0000000000..94b75c7f0f
--- /dev/null
+++ b/test-suite/success/replace.v
@@ -0,0 +1,24 @@
+Goal forall x, x = 0 -> S x = 7 -> x = 22 .
+Proof.
+replace 0 with 33.
+Undo.
+intros x H H0.
+replace x with 0.
+Undo.
+replace x with 0 in  |- *. 
+Undo.
+replace x with 1 in *.
+Undo.
+replace x with 0 in *|- *.
+Undo.
+replace x with 0 in *|-.
+Undo.
+replace x with 0 in H0 .
+Undo.
+replace x with 0 in H0 |- * .
+Undo.
+
+replace x with 0 in H,H0 |- * .
+Undo.
+Admitted.
+