[#267] nns: Add SetAdmin event

Port neo-project/non-native-contracts#11.

Signed-off-by: Anna Shaleva <[email protected]>

contracts/nns/config.yml

@@ -14,6 +14,14 @@ events:
         type: Integer
       - name: tokenId
         type: ByteArray
+  - name: SetAdmin
+    parameters:
+      - name: name
+        type: String
+      - name: oldAdmin
+        type: Hash160
+      - name: newAdmin
+        type: Hash160
 permissions:
   - hash: fffdc93764dbaddd97c48f252a53ea4643faa3fd
     methods: ["update"]

contracts/nns/contract.go

@@ -522,8 +522,10 @@ func SetAdmin(name string, admin interop.Hash160) {
 	ctx := storage.GetContext()
 	ns := getFragmentedNameState(ctx, []byte(name), fragments)
 	common.CheckOwnerWitness(ns.Owner)
+	oldAdm := ns.Admin
 	ns.Admin = admin
 	putNameState(ctx, ns)
+	runtime.Notify("SetAdmin", name, oldAdm, admin)
 }
 
 // SetRecord updates existing domain record with the specified type and ID.

tests/nns_test.go

@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/nspcc-dev/neo-go/pkg/core/interop/storage"
+	"github.com/nspcc-dev/neo-go/pkg/core/state"
 	"github.com/nspcc-dev/neo-go/pkg/encoding/address"
 	"github.com/nspcc-dev/neo-go/pkg/neotest"
 	"github.com/nspcc-dev/neo-go/pkg/util"
@@ -354,7 +355,16 @@ func TestNNSSetAdmin(t *testing.T) {
 		"testdomain.com", int64(recordtype.TXT), "won't be added")
 
 	c1 := c.WithSigners(c.Committee, acc)
-	c1.Invoke(t, stackitem.Null{}, "setAdmin", "testdomain.com", acc.ScriptHash())
+	h := c1.Invoke(t, stackitem.Null{}, "setAdmin", "testdomain.com", acc.ScriptHash())
+	c1.CheckTxNotificationEvent(t, h, 0, state.NotificationEvent{
+		ScriptHash: c1.Hash,
+		Name:       "SetAdmin",
+		Item: stackitem.NewArray([]stackitem.Item{
+			stackitem.NewByteArray([]byte("testdomain.com")),
+			stackitem.Null{},
+			stackitem.NewByteArray(acc.ScriptHash().BytesBE()),
+		}),
+	})
 
 	expiration := top.Timestamp + uint64(expire*1000)
 	expectedProps := stackitem.NewMapWithValue([]stackitem.MapElement{