public void TestConstructorInitializesInstanceWithEmptyEntitySet()
{
// setup
// see SetUp
// execute
genericDbSet = new GenericDbSet<Vendor>();
// assert
Assert.IsEmpty(genericDbSet);
}
public void TestConstructorInitializesInstanceWithEntitySet()
{
// setup
// see SetUp
// execute
genericDbSet = new GenericDbSet<Vendor>(list);
// assert
Assert.AreEqual(4, genericDbSet.Count);
}
public void SetUp()
{
list = new List<Vendor>()
{
new Vendor { VendorId = 1, Name = "Apple" },
new Vendor { VendorId = 2, Name = "Microsoft" },
new Vendor { VendorId = 3, Name = "Google" },
new Vendor { VendorId = 4, Name = "Samsung" }
};
genericDbSet = new GenericDbSet<Vendor>(list);
}
public void TestConstructorInitializesInstanceWithGuidIdentityInEntitySet()
{
// setup
List<Product> products = new List<Product>()
{
new Product { Name = "Visual Stuio" },
new Product { Name = "Xcode" }
};
// execute
GenericDbSet<Product> set = new GenericDbSet<Product>(products, p => p.ProductId);
// assert
foreach (Product p in set.GetNextEntity())
{
Assert.IsNotNull(p.ProductId);
}
}
public void TestConstructorInitializesInstanceWithIdentityInEmptyEntitySet()
{
// setup
int identitySeed = 1;
// execute
genericDbSet = new GenericDbSet<Vendor>(v => v.VendorId);
genericDbSet.Add(new Vendor { Name = "Oracle" });
// assert
foreach (Vendor v in genericDbSet.GetNextEntity())
{
Assert.AreEqual(identitySeed, v.VendorId);
identitySeed++;
}
}
public void TestEnumeratorIsReturnedAndDoesNotIterateWhenNoEntitySetExists()
{
// setup
genericDbSet = new GenericDbSet<Vendor>();
// execute
IEnumerator<Vendor> enumerator = genericDbSet.GetEnumerator();
enumerator.MoveNext();
Vendor result = enumerator.Current;
// assert
Assert.IsNull(result);
}
public void TestEntityIsAddedToEntitySet()
{
// setup
genericDbSet = new GenericDbSet<Vendor>(v => v.VendorId);
// execute
Vendor entity = genericDbSet.Add(new Vendor { Name = "Oracle" });
// assert
Assert.AreEqual(1, genericDbSet.Count);
Assert.IsNotNull(entity);
Assert.AreEqual(1, entity.VendorId);
}
public void TestEntitiesAreNotReturnedWhenNoneExist()
{
// setup
genericDbSet = new GenericDbSet<Vendor>();
List<Vendor> actual = new List<Vendor>();
// execute
foreach (Vendor v in genericDbSet.GetNextEntity())
{
actual.Add(v);
}
// assert
Assert.IsEmpty(actual);
}
public void TestConstructorInitializesInstanceWithIntegerIdentityInEntitySet()
{
// setup
int identitySeed = 1;
list.ForEach(v => v.VendorId = 0);
// execute
genericDbSet = new GenericDbSet<Vendor>(list, v => v.VendorId);
// assert
foreach (Vendor v in genericDbSet.GetNextEntity())
{
Assert.AreEqual(identitySeed, v.VendorId);
identitySeed++;
}
}
