public void GetAllNames_ReturnsAnEmptyList_WhenThereAreNoSuppliers()
{
// Arrange
var suppliers = new List <Supplier>().AsQueryable();
var supplierMockDbSet = new Mock <DbSet <Supplier> >();
supplierMockDbSet.As <IQueryable <Supplier> >().Setup(m => m.Provider).Returns(suppliers.Provider);
supplierMockDbSet.As <IQueryable <Supplier> >().Setup(m => m.Expression).Returns(suppliers.Expression);
supplierMockDbSet.As <IQueryable <Supplier> >().Setup(m => m.ElementType).Returns(suppliers.ElementType);
supplierMockDbSet.As <IQueryable <Supplier> >().Setup(m => m.GetEnumerator()).Returns(suppliers.GetEnumerator());
var mockContext = new Mock <EazyCartContext>();
mockContext.Setup(c => c.Suppliers).Returns(supplierMockDbSet.Object);
var supplierBusiness = new SupplierBusiness(mockContext.Object);
// Act
var allSuppliers = supplierBusiness.GetAllNames();
// Assert
int expectedCount = 0;
Assert.AreEqual(expectedCount, allSuppliers.Count, "List of all suppliers is not empty");
}
public void GetAllNames_ReturnsACorrectListOfSupplierNames_WhenNotEmpty()
{
// Arrange
var suppliers = new List <Supplier>
{
new Supplier {
Name = "TestSupplier1", Id = 1
},
new Supplier {
Name = "TestSupplier2", Id = 2
},
new Supplier {
Name = "TestSupplier3", Id = 3
}
}.AsQueryable();
var supplierMockDbSet = new Mock <DbSet <Supplier> >();
supplierMockDbSet.As <IQueryable <Supplier> >().Setup(m => m.Provider).Returns(suppliers.Provider);
supplierMockDbSet.As <IQueryable <Supplier> >().Setup(m => m.Expression).Returns(suppliers.Expression);
supplierMockDbSet.As <IQueryable <Supplier> >().Setup(m => m.ElementType).Returns(suppliers.ElementType);
supplierMockDbSet.As <IQueryable <Supplier> >().Setup(m => m.GetEnumerator()).Returns(suppliers.GetEnumerator());
var mockContext = new Mock <EazyCartContext>();
mockContext.Setup(c => c.Suppliers).Returns(supplierMockDbSet.Object);
var supplierBusiness = new SupplierBusiness(mockContext.Object);
// Act
var allSupplierNames = supplierBusiness.GetAllNames();
// Assert
string expectedFirstSupplierName = "TestSupplier1";
string expectedSecondSupplierName = "TestSupplier2";
string expectedThirdSupplierName = "TestSupplier3";
Assert.AreEqual(expectedFirstSupplierName, allSupplierNames[0], "First names do not match.");
Assert.AreEqual(expectedSecondSupplierName, allSupplierNames[1], "Second names do not match.");
Assert.AreEqual(expectedThirdSupplierName, allSupplierNames[2], "Third names do not match");
}