/// <summary>
/// Populate the data grid with information sorted by cars' displacement in descending order
/// </summary>
private void PopulateDataGridViewSortCarsByDisplacementDescending()
{
dataGridView.Rows.Clear(); HideSpecificInfo();
CarBusiness carBusiness = new CarBusiness();
var carsList = carBusiness.SortCarsByDisplacementDescending();
DataPopulator(carsList);
dataGridView.Columns[6].Visible = true;
}
public void SortCarsByDisplacementDescending()
{
var data = new List <Car>
{
new Car {
Model = "Car1", Engine = new Engine {
Displacement = 1900
}
},
new Car {
Model = "Car2", Engine = new Engine {
Displacement = 2000
}
},
new Car {
Model = "Car3", Engine = new Engine {
Displacement = 2700
}
},
}.AsQueryable();
var mockSet = new Mock <DbSet <Car> >();
mockSet.As <IQueryable <Car> >().Setup(m => m.Provider).Returns(data.Provider);
mockSet.As <IQueryable <Car> >().Setup(m => m.Expression).Returns(data.Expression);
mockSet.As <IQueryable <Car> >().Setup(m => m.ElementType).Returns(data.ElementType);
mockSet.As <IQueryable <Car> >().Setup(m => m.GetEnumerator()).Returns(data.GetEnumerator());
var mockContext = new Mock <CarDealershipContext>();
mockContext.Setup(m => m.Cars).Returns(mockSet.Object);
var service = new CarBusiness(mockContext.Object);
var SortedCars = service.SortCarsByDisplacementDescending();
Assert.AreEqual(2700, SortedCars[0].Engine.Displacement);
Assert.AreEqual(2000, SortedCars[1].Engine.Displacement);
Assert.AreEqual(1900, SortedCars[2].Engine.Displacement);
}