public void SortEnginesByDisplacemntDescending()
{
var data = new List <Engine>
{
new Engine {
Name = "Engine1", Displacement = 1900
},
new Engine {
Name = "Engine2", Displacement = 2700
},
new Engine {
Name = "Engine3", Displacement = 2000
},
}.AsQueryable();
var mockSet = new Mock <DbSet <Engine> >();
mockSet.As <IQueryable <Engine> >().Setup(m => m.Provider).Returns(data.Provider);
mockSet.As <IQueryable <Engine> >().Setup(m => m.Expression).Returns(data.Expression);
mockSet.As <IQueryable <Engine> >().Setup(m => m.ElementType).Returns(data.ElementType);
mockSet.As <IQueryable <Engine> >().Setup(m => m.GetEnumerator()).Returns(data.GetEnumerator());
var mockContext = new Mock <CarDealershipContext>();
mockContext.Setup(m => m.Engines).Returns(mockSet.Object);
var service = new EngineBusiness(mockContext.Object);
var EnginesFound = service.SortEnginesByDisplacementDescending();
Assert.AreEqual(3, EnginesFound.Count());
Assert.AreEqual("Engine2", EnginesFound[0].Name);
Assert.AreEqual("Engine3", EnginesFound[1].Name);
Assert.AreEqual("Engine1", EnginesFound[2].Name);
}
/// <summary>
/// Populate the data grid with information sorted by engines' displacement in descending order
/// </summary>
private void PopulateDataGridViewSortEnginesByDisplacementDescending()
{
dataGridView.Rows.Clear();
EngineBusiness engineBusiness = new EngineBusiness();
var enginesList = engineBusiness.SortEnginesByDisplacementDescending();
DataPopulator(enginesList);
}