fix tests

__mocks__/emoji-picker-react.js

@@ -0,0 +1,6 @@
+import React from "react";
+import { ReactElement } from "react";
+
+const MockPicker = () => <div>Emoji Picker</div>
+
+export default MockPicker;

__mocks__/matrix-js-sdk.js

@@ -45,6 +45,7 @@ export const mockDeactivateAccount = jest.fn(() => {
   return Promise.resolve('value');
 });
 export const mockOn = jest.fn()
+export const mockSetDisplayName = jest.fn()
 
 export const mockClient = {
   registerRequest: mockRegisterRequest,
@@ -64,6 +65,9 @@ export const mockClient = {
   setPowerLevel: mockSetPowerLevel,
   sendTextMessage: mockSendTextMessage,
   deactivateAccount: mockDeactivateAccount,
+  setDisplayName: mockSetDisplayName,
 }
 
+export const WebStorageSessionStore = jest.fn()
+
 export const createClient = jest.fn().mockReturnValue(mockClient)