public void Delete_ThrowsArgumentException_WhenSuppliersAreRelatedToTheCity()
{
// Arrange
var cities = new List <City>
{
new City {
Name = "TestCity1", Id = 1
},
new City {
Name = "TestCity2", Id = 2
}
}.AsQueryable();
var suppliers = new List <Supplier>
{
new Supplier {
Name = "TestSupplier1", CityId = 1
}
}.AsQueryable();
var citymockDbSet = new Mock <DbSet <City> >();
citymockDbSet.As <IQueryable <City> >().Setup(m => m.Provider).Returns(cities.Provider);
citymockDbSet.As <IQueryable <City> >().Setup(m => m.Expression).Returns(cities.Expression);
citymockDbSet.As <IQueryable <City> >().Setup(m => m.ElementType).Returns(cities.ElementType);
citymockDbSet.As <IQueryable <City> >().Setup(m => m.GetEnumerator()).Returns(cities.GetEnumerator());
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.Cities).Returns(citymockDbSet.Object);
mockContext.Setup(c => c.Suppliers).Returns(suppliermockDbSet.Object);
var cityBusiness = new CityBusiness(mockContext.Object);
// Act & Assert
try
{
int idToDelete = 1;
cityBusiness.Delete(idToDelete);
Assert.Fail("No exception was thrown.");
}
catch (ArgumentException ex)
{
string expectedMessage = string.Format("One or more suppliers are related to this city.");
Assert.AreEqual(expectedMessage, ex.Message, "Wrong exception was thrown.");
}
}
public void Delete_SuccessfullyDeletesCity_WhenNoSuppliersAreRelated()
{
// Arrange
var cities = new List <City>
{
new City {
Name = "TestCity1", Id = 1
},
new City {
Name = "TestCity2", Id = 2
}
}.AsQueryable();
var suppliers = new List <Supplier>
{
new Supplier {
Name = "TestSupplier1", CityId = 1
}
}.AsQueryable();
var citymockDbSet = new Mock <DbSet <City> >();
citymockDbSet.As <IQueryable <City> >().Setup(m => m.Provider).Returns(cities.Provider);
citymockDbSet.As <IQueryable <City> >().Setup(m => m.Expression).Returns(cities.Expression);
citymockDbSet.As <IQueryable <City> >().Setup(m => m.ElementType).Returns(cities.ElementType);
citymockDbSet.As <IQueryable <City> >().Setup(m => m.GetEnumerator()).Returns(cities.GetEnumerator());
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.Cities).Returns(citymockDbSet.Object);
mockContext.Setup(c => c.Suppliers).Returns(suppliermockDbSet.Object);
var cityBusiness = new CityBusiness(mockContext.Object);
// Act
int idToDelete = 2;
cityBusiness.Delete(idToDelete);
// Assert
citymockDbSet.Verify(m => m.Remove(It.IsAny <City>()), Times.Once());
mockContext.Verify(m => m.SaveChanges(), Times.Once());
}