public void Finance_ReturnsCorrectTotalEmployeesSalaries()
        {
            var employees = new List<Employee>
            {
                new Employee {Id = 1, Salary = 1000},
                new Employee {Id = 2, Salary = 3},
                new Employee {Id = 3, Salary = 5000}
            };

            var mockContext = new Mock<InstantDeliveryContext>();
            mockContext.Setup(c => c.Employees).ReturnsDbSet(employees);
            mockContext.Setup(c => c.Packages).ReturnsDbSet(new List<Package>());

            var controller = new StatisticsController(mockContext.Object);

            var result = controller.Finance() as OkNegotiatedContentResult<FinancialStatisticsDto>;
            Assert.Equal(result?.Content.TotalEmployeesSalaries, 6003);
        }
        public void Finance_ReturnCorrectTotalPackagesValue()
        {
            var packages = new List<Package>
            {
                new Package {Id = 1, Cost = 1},
                new Package {Id = 2, Cost = 3},
                new Package {Id = 3, Cost = 5}
            };

            var mockContext = new Mock<InstantDeliveryContext>();
            mockContext.Setup(c => c.Packages).ReturnsDbSet(packages);
            mockContext.Setup(c => c.Employees).ReturnsDbSet(new List<Employee>());

            var controller = new StatisticsController(mockContext.Object);

            var result = controller.Finance() as OkNegotiatedContentResult<FinancialStatisticsDto>;
            Assert.Equal(result?.Content.TotalPackagesValue, 9);
        }