From eb4336b0e7337e55bec3595602981b8e2be54cb7 Mon Sep 17 00:00:00 2001
From: John David Pressman <jd@jdpressman.com>
Date: Fri, 17 Jan 2020 01:50:06 -0800
Subject: [PATCH] Add PascaLIGO CHECK_SIGNATURE test to suite

---
 src/test/contracts/check_signature.ligo |  2 ++
 src/test/integration_tests.ml           | 14 ++++++++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 src/test/contracts/check_signature.ligo

diff --git a/src/test/contracts/check_signature.ligo b/src/test/contracts/check_signature.ligo
new file mode 100644
index 000000000..231b726ea
--- /dev/null
+++ b/src/test/contracts/check_signature.ligo
@@ -0,0 +1,2 @@
+function check_signature (const pk: key; const signed: signature; const msg: bytes) : bool is
+  crypto_check(pk, signed, msg)
diff --git a/src/test/integration_tests.ml b/src/test/integration_tests.ml
index 7d5b909c5..3daec1887 100644
--- a/src/test/integration_tests.ml
+++ b/src/test/integration_tests.ml
@@ -1923,6 +1923,19 @@ let key_hash_religo () : unit result =
   let%bind () = expect_eq program "check_hash_key" make_input make_expected in
   ok ()
 
+let check_signature () : unit result =
+  let open Tezos_crypto in
+  let (_, raw_pk, sk) = Signature.generate_key () in
+  let pk_str = Signature.Public_key.to_b58check raw_pk in
+  let signed = Signature.sign sk (Bytes.of_string "hello world") in
+  let%bind program = type_file "./contracts/check_signature.ligo" in
+  let make_input = e_tuple [e_key pk_str ;
+                            e_signature (Signature.to_b58check signed) ;
+                            e_bytes_ofbytes (Bytes.of_string "hello world")] in
+  let make_expected = e_bool true in
+  let%bind () = expect_eq program "check_signature" make_input make_expected in
+  ok ()
+
 let curry () : unit result =
   let%bind program = mtype_file "./contracts/curry.mligo" in
   let%bind () =
@@ -2059,6 +2072,7 @@ let main = test_suite "Integration (End to End)" [
     test "key hash" key_hash ;
     test "key hash (mligo)" key_hash_mligo ;
     test "key hash (religo)" key_hash_religo ;
+    test "check signature" check_signature ;
     test "chain id" chain_id ;
     test "type alias" type_alias ;
     test "function" function_ ;