Refactored API code surrounding accounts to make transformers mockable.

app/Repositories/Account/AccountRepository.php

@@ -27,6 +27,7 @@ use FireflyIII\Exceptions\FireflyException;
 use FireflyIII\Factory\AccountFactory;
 use FireflyIII\Models\Account;
 use FireflyIII\Models\AccountType;
+use FireflyIII\Models\TransactionCurrency;
 use FireflyIII\Models\TransactionJournal;
 use FireflyIII\Models\TransactionType;
 use FireflyIII\Services\Internal\Destroy\AccountDestroyService;
@@ -51,7 +52,7 @@ class AccountRepository implements AccountRepositoryInterface
      */
     public function __construct()
     {
-        if ('testing' === env('APP_ENV')) {
+        if ('testing' === config('app.env')) {
             Log::warning(sprintf('%s should not be instantiated in the TEST environment!', \get_class($this)));
         }
     }
@@ -178,6 +179,31 @@ class AccountRepository implements AccountRepositoryInterface
         return $this->user->accounts()->find($accountId);
     }
 
+    /**
+     * @param Account $account
+     *
+     * @return TransactionCurrency|null
+     */
+    public function getAccountCurrency(Account $account): ?TransactionCurrency
+    {
+        $currencyId = (int)$this->getMetaValue($account, 'currency_id');
+        if ($currencyId > 0) {
+            return TransactionCurrency::find($currencyId);
+        }
+
+        return null;
+    }
+
+    /**
+     * @param Account $account
+     *
+     * @return string
+     */
+    public function getAccountType(Account $account): string
+    {
+        return $account->accountType->type;
+    }
+
     /**
      * Return account type or null if not found.
      *