Add evaluate DNS rule action and related rule items

option/rule_nested_test.go

@@ -0,0 +1,68 @@
+package option
+
+import (
+	"context"
+	"testing"
+
+	"github.com/sagernet/sing/common/json"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestRuleRejectsNestedDefaultRuleAction(t *testing.T) {
+	t.Parallel()
+
+	var rule Rule
+	err := json.UnmarshalContext(context.Background(), []byte(`{
+		"type": "logical",
+		"mode": "and",
+		"rules": [
+			{"domain": "example.com", "outbound": "direct"}
+		]
+	}`), &rule)
+	require.ErrorContains(t, err, RouteRuleActionNestedUnsupportedMessage)
+}
+
+func TestRuleLeavesUnknownNestedKeysToNormalValidation(t *testing.T) {
+	t.Parallel()
+
+	var rule Rule
+	err := json.UnmarshalContext(context.Background(), []byte(`{
+		"type": "logical",
+		"mode": "and",
+		"rules": [
+			{"domain": "example.com", "foo": "bar"}
+		]
+	}`), &rule)
+	require.ErrorContains(t, err, "unknown field")
+	require.NotContains(t, err.Error(), RouteRuleActionNestedUnsupportedMessage)
+}
+
+func TestDNSRuleRejectsNestedDefaultRuleAction(t *testing.T) {
+	t.Parallel()
+
+	var rule DNSRule
+	err := json.UnmarshalContext(context.Background(), []byte(`{
+		"type": "logical",
+		"mode": "and",
+		"rules": [
+			{"domain": "example.com", "server": "default"}
+		]
+	}`), &rule)
+	require.ErrorContains(t, err, DNSRuleActionNestedUnsupportedMessage)
+}
+
+func TestDNSRuleLeavesUnknownNestedKeysToNormalValidation(t *testing.T) {
+	t.Parallel()
+
+	var rule DNSRule
+	err := json.UnmarshalContext(context.Background(), []byte(`{
+		"type": "logical",
+		"mode": "and",
+		"rules": [
+			{"domain": "example.com", "foo": "bar"}
+		]
+	}`), &rule)
+	require.ErrorContains(t, err, "unknown field")
+	require.NotContains(t, err.Error(), DNSRuleActionNestedUnsupportedMessage)
+}