feat: add notify Snap method

test/flask/methods-snap/src/index.ts

@@ -15,6 +15,16 @@ export const onRpcRequest: OnRpcRequestHandler = ({ origin, request }) => {
           },
         ],
       });
+    case "notify_inApp":
+      return wallet.request({
+        method: "snap_notify",
+        params: [
+          {
+            type: "inApp",
+            message: `Hello, in App notification`,
+          },
+        ],
+      });
     default:
       throw new Error("Method not found.");
   }

test/flask/snaps.spec.ts

@@ -4,6 +4,7 @@ import * as dappeteer from "../../src";
 import { TestContext } from "../constant";
 import { Snaps } from "../deploy";
 import { toUrl } from "../utils/utils";
+import { clickOnElement, openProfileDropdown } from "../../src/helpers";
 
 function getSnapIdByName(testContext: TestContext, snapName: Snaps): string {
   return `local:${toUrl(testContext.snapServers[snapName].address())}`;
@@ -97,5 +98,44 @@ describe("snaps", function () {
 
       expect(await invokeAction).to.equal(false);
     });
+
+    it("should invoke IN APP NOTIFICATION method and show text", async function (this: TestContext) {
+      await metamask.snaps.invokeSnap(
+        testPage,
+        getSnapIdByName(this, Snaps.METHODS_SNAP),
+        "notify_inApp"
+      );
+
+      await metamask.page.bringToFront();
+      await openProfileDropdown(metamask.page);
+      await clickOnElement(metamask.page, "Notifications");
+
+      const notificationItem = await metamask.page.waitForSelector(
+        ".notifications__item"
+      );
+      const notificationText = await notificationItem.$eval(
+        ".notifications__item__details__message",
+        (el) => el.textContent
+      );
+      const unreadDot = await notificationItem.$eval(
+        ".notifications__item__unread-dot",
+        (el) => el.className
+      );
+
+      expect(notificationText).to.equal("Hello, in App notification");
+      expect(unreadDot).to.equal("notifications__item__unread-dot unread");
+
+      await notificationItem.click();
+      const notificationItemUpdated = await metamask.page.waitForSelector(
+        ".notifications__item"
+      );
+
+      expect(
+        await notificationItemUpdated.$eval(
+          ".notifications__item__unread-dot",
+          (el) => el.className
+        )
+      ).to.equal("notifications__item__unread-dot");
+    });
   });
 });