Define type ReduxState

app/core/Engine/Engine.test.ts

@@ -5,13 +5,12 @@ import { zeroAddress } from 'ethereumjs-util';
 import { createMockAccountsControllerState } from '../../util/test/accountsControllerTestUtils';
 import { mockNetworkState } from '../../util/test/network';
 import MetaMetrics from '../Analytics/MetaMetrics';
-import { store } from '../../store';
+import { ReduxState, store } from '../../store';
 import { MetaMetricsEvents } from '../Analytics';
 import { NetworkState } from '@metamask/network-controller';
 import { Hex } from '@metamask/utils';
 import { MarketDataDetails } from '../../components/UI/Tokens';
 import { TransactionMeta } from '@metamask/transaction-controller';
-import { RootState } from '../../reducers';
 import { MetricsEventBuilder } from '../Analytics/MetricsEventBuilder';
 
 jest.unmock('./Engine');
@@ -369,7 +368,7 @@ describe('Transaction event handlers', () => {
   beforeEach(() => {
     engine = Engine.init({});
     jest.spyOn(MetaMetrics.getInstance(), 'trackEvent').mockImplementation();
-    jest.spyOn(store, 'getState').mockReturnValue({} as RootState);
+    jest.spyOn(store, 'getState').mockReturnValue({} as ReduxState);
   });
 
   afterEach(() => {

app/store/index.ts

@@ -19,7 +19,10 @@ import getUIStartupSpan from '../core/Performance/UIStartup';
 import { ToolkitStore } from '@reduxjs/toolkit/dist/configureStore';
 
 // TODO: Improve type safety by using real Action types instead of `any`
-const pReducer = persistReducer<RootState, AnyAction>(persistConfig, rootReducer);
+const pReducer = persistReducer<RootState, AnyAction>(
+  persistConfig,
+  rootReducer,
+);
 
 // TODO: Fix the Action type. It's set to `any` now because some of the
 // TypeScript reducers have invalid actions
@@ -103,8 +106,10 @@ const createStoreAndPersistor = async () => {
 
 export { store, persistor };
 
+export type ReduxState = ReturnType<typeof pReducer>;
+
 export type ReduxStore = ToolkitStore<
-  ReturnType<typeof pReducer>,
+  ReduxState,
   AnyAction,
   [ReturnType<typeof createSagaMiddleware<typeof rootSaga>>, typeof thunk]
 >;