export function checkReturnList(jsonMock: Mock, listName: string) { expect(jsonMock).toHaveBeenCalled(); const result = jsonMock.mock.lastCall![0]; expect(listName in result).toBeTruthy(); } export function checkReturn404(jsonMock: Mock, statusMock: Mock) { expect(statusMock).toHaveBeenCalledWith(404); expect(jsonMock).toHaveBeenCalled(); }