refactor(WPN-1652): extract SnapAssetsAdapter for Solana balance reads

packages/snap/snap.manifest.json

@@ -7,7 +7,7 @@
     "url": "https://github.com/MetaMask/snap-solana-wallet.git"
   },
   "source": {
-    "shasum": "plRX1XTzFRIxN8mAd+hRn7XmQH03DosKAy2PNVyo1B4=",
+    "shasum": "gimlsTQaSaGjPb9b20pZcxJV1Xy0+qZ8MLPBTyIiWAQ=",
     "location": {
       "npm": {
         "filePath": "dist/bundle.js",

packages/snap/src/core/services/assets/AssetsService.test.ts

@@ -24,6 +24,7 @@ import { mockLogger } from '../mocks/logger';
 import { createMockConnection } from '../mocks/mockConnection';
 import { MOCK_SOLANA_RPC_GET_TOKEN_ACCOUNTS_BY_OWNER_RESPONSE } from '../mocks/mockSolanaRpcResponses';
 import type { TokenPricesService } from '../token-prices/TokenPrices';
+import { SnapAssetsAdapter } from './adapters/SnapAssetsAdapter';
 import type { AssetsRepository } from './AssetsRepository';
 import { AssetsService } from './AssetsService';
 
@@ -33,6 +34,7 @@ jest.mock('@metamask/keyring-snap-sdk', () => ({
 
 describe('AssetsService', () => {
   let assetsService: AssetsService;
+  let snapAssetsAdapter: SnapAssetsAdapter;
   let mockConnection: SolanaConnection;
   let mockConfigProvider: ConfigProvider;
   let mockAssetsRepository: AssetsRepository;
@@ -87,17 +89,25 @@ describe('AssetsService', () => {
       findById: jest.fn().mockResolvedValue(MOCK_SOLANA_KEYRING_ACCOUNT_0),
     } as unknown as AccountsService;
 
-    assetsService = new AssetsService({
+    snapAssetsAdapter = new SnapAssetsAdapter({
       connection: mockConnection,
       logger: mockLogger,
       configProvider: mockConfigProvider,
       assetsRepository: mockAssetsRepository,
       accountsService: mockAccountsService,
       tokenApiClient: mockTokenApiClient,
-      tokenPricesService: mockTokenPricesService,
       cache: mockCache,
       nftApiClient: mockNftApiClient,
     });
+
+    assetsService = new AssetsService({
+      logger: mockLogger,
+      configProvider: mockConfigProvider,
+      snapAssetsAdapter,
+      tokenApiClient: mockTokenApiClient,
+      tokenPricesService: mockTokenPricesService,
+      nftApiClient: mockNftApiClient,
+    });
   });
 
   describe('fetch', () => {