From b18b4b4d40f62b535e67149c0e06a81b55d30228 Mon Sep 17 00:00:00 2001
From: Darioush Jalali <darioush.jalali@avalabs.org>
Date: Thu, 16 Feb 2023 15:28:50 -0800
Subject: [PATCH] add regression test for IsDisabled

---
 params/config_test.go | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/params/config_test.go b/params/config_test.go
index 8e1c3f7ada..a407c81bae 100644
--- a/params/config_test.go
+++ b/params/config_test.go
@@ -206,3 +206,24 @@ func TestConfigUnmarshalJSON(t *testing.T) {
 	require.NoError(err)
 	require.Equal(c, c2)
 }
+
+func TestActivePrecompiles(t *testing.T) {
+	config := ChainConfig{
+		UpgradeConfig: UpgradeConfig{
+			PrecompileUpgrades: []PrecompileUpgrade{
+				{
+					nativeminter.NewConfig(common.Big0, nil, nil, nil), // enable at genesis
+				},
+				{
+					nativeminter.NewDisableConfig(common.Big1), // disable at timestamp 1
+				},
+			},
+		},
+	}
+
+	rules0 := config.AvalancheRules(common.Big0, common.Big0)
+	require.True(t, rules0.IsPrecompileEnabled(nativeminter.Module.Address))
+
+	rules1 := config.AvalancheRules(common.Big0, common.Big1)
+	require.False(t, rules1.IsPrecompileEnabled(nativeminter.Module.Address))
+}