message: Fixes missing expectation for happy path of ListFiles request
diff: @@ -61,7 +61,12 @@ using am::commands::ListFilesRequest;
  using am::commands::MessageSharedPtr;
  class ListFilesRequestTest
  - : public CommandRequestTest<CommandsTestMocks::kIsNice> {};
  + : public CommandRequestTest<CommandsTestMocks::kIsNice> {
  + public:
  + ListFilesRequestTest() : kStoragePath_("storage"), kResponseSize_(1) {}
  + const std::string kStoragePath_;
  + const uint32_t kResponseSize_;
  +};
  TEST_F(ListFilesRequestTest, Run_AppNotRegistered_UNSUCCESS) {
  SharedPtr<ListFilesRequest> command(CreateCommand<ListFilesRequest>());
  @@ -104,9 +109,18 @@ TEST_F(ListFilesRequestTest, Run_TooManyHmiNone_UNSUCCESS) {
  TEST_F(ListFilesRequestTest, Run_SUCCESS) {
  MockAppPtr app(CreateMockApp());
  SharedPtr<ListFilesRequest> command(CreateCommand<ListFilesRequest>());
  +
  EXPECT_CALL(app_mngr_, get_settings())
  - .WillOnce(ReturnRef(app_mngr_settings_));
  + .WillRepeatedly(ReturnRef(app_mngr_settings_));
  +
  + ON_CALL(app_mngr_settings_, app_storage_folder())
  + .WillByDefault(ReturnRef(kStoragePath_));
  +
  + ON_CALL(app_mngr_settings_, list_files_response_size())
  + .WillByDefault(ReturnRef(kResponseSize_));
  +
  ON_CALL(app_mngr_, application(_)).WillByDefault(Return(app));
  +
  ON_CALL(*app, hmi_level())
  .WillByDefault(Return(mobile_apis::HMILevel::HMI_FULL));
  