From e90bfd83d9aa13947c61845a30e36a6a6a1c7955 Mon Sep 17 00:00:00 2001
From: Thomas Bruyelle <thomas.bruyelle@tendermint.com>
Date: Thu, 10 Aug 2023 17:56:05 +0200
Subject: [PATCH] test: add minimal test to demo amino.MustMarshalJSON panic

---
 gnovm/pkg/gnolang/values_test.go | 22 ++++++++++++++++++++++
 gnovm/stdlibs/std/crypto.gno     |  2 +-
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 gnovm/pkg/gnolang/values_test.go

diff --git a/gnovm/pkg/gnolang/values_test.go b/gnovm/pkg/gnolang/values_test.go
new file mode 100644
index 00000000000..199117b1426
--- /dev/null
+++ b/gnovm/pkg/gnolang/values_test.go
@@ -0,0 +1,22 @@
+package gnolang
+
+import (
+	"math/big"
+	"testing"
+
+	"github.com/gnolang/gno/tm2/pkg/amino"
+)
+
+// This test exposes a panics that occurs when BigintValue is embedded
+// in an other struct.
+func TestAminoMustMarshalJSONPanics(t *testing.T) {
+	bi := BigintValue{V: big.NewInt(20)}
+	b := amino.MustMarshalJSON(bi) // works well
+	println(string(b))
+
+	pv := PackageValue{
+		Block: bi,
+	}
+	b = amino.MustMarshalJSON(pv) // panics
+	println(string(b))
+}
diff --git a/gnovm/stdlibs/std/crypto.gno b/gnovm/stdlibs/std/crypto.gno
index 18402c0824d..3ebd802dc3f 100644
--- a/gnovm/stdlibs/std/crypto.gno
+++ b/gnovm/stdlibs/std/crypto.gno
@@ -6,6 +6,6 @@ func (a Address) String() string {
 	return string(a)
 }
 
-const RawAddressSize = int(20)
+const RawAddressSize = 20
 
 type RawAddress [RawAddressSize]byte