public async Task TestGetExpensesByUserIdAsync()
{
var dbContext = DbContextMocker.GetExpenseManagerDbContext(nameof(TestGetExpensesByUserIdAsync));
var controller = new ExpensesController(dbContext);
var response = await controller.GetExpenseByUser(1, "");
var value = response.Value;
dbContext.Dispose();
// Assert
Assert.IsType <ActionResult <IEnumerable <Expense> > >(response);
Assert.IsType <List <Expense> >(value);
Assert.Equal(2, (value as List <Expense>).Count);
}