public void Delete_ThrowsArgumentException_WhenProductsAreRelatedToTheSupplier()
{
// Arrange
var suppliers = new List <Supplier>
{
new Supplier {
Name = "TestSupplier1", Id = 1, CityId = 1
},
new Supplier {
Name = "TestSupplier2", Id = 2
}
}.AsQueryable();
var products = new List <Product>
{
new Product {
Name = "TestProduct1", SupplierId = 1
}
}.AsQueryable();
var mockDbSupplierSet = new Mock <DbSet <Supplier> >();
mockDbSupplierSet.As <IQueryable <Supplier> >().Setup(m => m.Provider).Returns(suppliers.Provider);
mockDbSupplierSet.As <IQueryable <Supplier> >().Setup(m => m.Expression).Returns(suppliers.Expression);
mockDbSupplierSet.As <IQueryable <Supplier> >().Setup(m => m.ElementType).Returns(suppliers.ElementType);
mockDbSupplierSet.As <IQueryable <Supplier> >().Setup(m => m.GetEnumerator()).Returns(suppliers.GetEnumerator());
var mockDbProductSet = new Mock <DbSet <Product> >();
mockDbProductSet.As <IQueryable <Product> >().Setup(m => m.Provider).Returns(products.Provider);
mockDbProductSet.As <IQueryable <Product> >().Setup(m => m.Expression).Returns(products.Expression);
mockDbProductSet.As <IQueryable <Product> >().Setup(m => m.ElementType).Returns(products.ElementType);
mockDbProductSet.As <IQueryable <Product> >().Setup(m => m.GetEnumerator()).Returns(products.GetEnumerator());
var mockContext = new Mock <EazyCartContext>();
mockContext.Setup(c => c.Suppliers).Returns(mockDbSupplierSet.Object);
mockContext.Setup(c => c.Products).Returns(mockDbProductSet.Object);
var supplierBusiness = new SupplierBusiness(mockContext.Object);
// Act & Assert
try
{
int idToDelete = 1;
supplierBusiness.Delete(idToDelete);
Assert.Fail("No exception was thrown.");
}
catch (ArgumentException ex)
{
string expectedMessage = string.Format("One or more products are related to this supplier.");
Assert.AreEqual(expectedMessage, ex.Message, "Wrong exception was thrown.");
}
}
public void Delete_SuccessfullyDeletesSupplier_WhenNoProductsAreRelatedToTheSupplier()
{
// Arrange
var suppliers = new List <Supplier>
{
new Supplier {
Name = "TestSupplier1", Id = 1, CityId = 1
},
new Supplier {
Name = "TestSupplier2", Id = 2, CityId = 1
}
}.AsQueryable();
var products = new List <Product>
{
new Product {
Name = "TestProduct1", SupplierId = 1
}
}.AsQueryable();
var mockDbSupplierSet = new Mock <DbSet <Supplier> >();
mockDbSupplierSet.As <IQueryable <Supplier> >().Setup(m => m.Provider).Returns(suppliers.Provider);
mockDbSupplierSet.As <IQueryable <Supplier> >().Setup(m => m.Expression).Returns(suppliers.Expression);
mockDbSupplierSet.As <IQueryable <Supplier> >().Setup(m => m.ElementType).Returns(suppliers.ElementType);
mockDbSupplierSet.As <IQueryable <Supplier> >().Setup(m => m.GetEnumerator()).Returns(suppliers.GetEnumerator());
var mockDbProductSet = new Mock <DbSet <Product> >();
mockDbProductSet.As <IQueryable <Product> >().Setup(m => m.Provider).Returns(products.Provider);
mockDbProductSet.As <IQueryable <Product> >().Setup(m => m.Expression).Returns(products.Expression);
mockDbProductSet.As <IQueryable <Product> >().Setup(m => m.ElementType).Returns(products.ElementType);
mockDbProductSet.As <IQueryable <Product> >().Setup(m => m.GetEnumerator()).Returns(products.GetEnumerator());
var mockContext = new Mock <EazyCartContext>();
mockContext.Setup(c => c.Suppliers).Returns(mockDbSupplierSet.Object);
mockContext.Setup(c => c.Products).Returns(mockDbProductSet.Object);
var supplierBusiness = new SupplierBusiness(mockContext.Object);
// Act
int idToDelete = 2;
supplierBusiness.Delete(idToDelete);
// Assert
mockDbSupplierSet.Verify(m => m.Remove(It.IsAny <Supplier>()), Times.Once());
mockContext.Verify(m => m.SaveChanges(), Times.Once());
}