use mock instead of a real storage in test

Author: roninopf

tests/unit-tests/LocalStorageTests.swift

@@ -111,7 +111,7 @@ class LocalStorageTests: XCTestCase {
 
     func testPayload() throws {
         let mockDateProvider = MockDateProvider()
-        let localStorage = LocalStorage(userDefaults: LocalStorageTests.getTestUserDefaults(), keychain: LocalStorageTests.getTestKeychain())
+        let localStorage = MockLocalStorage()
 
         let payload: [AnyHashable: Any] = [
             "email": "[email protected]",