public void UpdateTest <T>()
{
const int PET_COUNT = 3;
// Arrange
var person = new Person {
FamilyName = "Summers", FirstName = "Scott", PetCount = PET_COUNT
}; // Create 'Person' to 'find/select' for test.
var efCodeFirstLibRepository = new EfCodeFirstLibRepository();
var createdPerson = efCodeFirstLibRepository.PersonCreate(person);
var createdPersonPrimaryKeyValues = new object[] { createdPerson.PersonId }; // Specify 'primary key' to 'find/select' newly created 'Person'.
var existingPerson = efCodeFirstLibRepository.PersonRead(createdPersonPrimaryKeyValues); // 'Find/select' newly created 'Person' to update.
var updatedValuesPerson = efCodeFirstLibRepository.DeepCloneViaJsonSerialization(existingPerson); // 'Clone' the 'foundPerson' to make update easier (i.e. easier than manual/copy object initialiation).
const int PET_COUNT_INCREASE = 10;
const int EXPECTED_PET_COUNT_TOTAL = PET_COUNT + PET_COUNT_INCREASE;
updatedValuesPerson.PetCount = updatedValuesPerson.PetCount + PET_COUNT_INCREASE; // 'Updating' the newly created 'Person' to increase the 'PetCount' property (increment by 10).
// Act
efCodeFirstLibRepository.PersonUpdate(existingPerson, updatedValuesPerson);
DeleteEntity(createdPerson); // Cleanup: Attempt to delete here/now in case an assert fails.
// Assert
Assert.IsNotNull(updatedValuesPerson);
Assert.IsTrue(updatedValuesPerson.PetCount.Equals(EXPECTED_PET_COUNT_TOTAL));
}
private static void RunCreateReadUpdateDeleteRepoExample()
{
var personSmith = new Person {
FamilyName = "Smith", FirstName = "Pat", PetCount = 1
}; // Create 'Person' object to be added to database/repository.
var efCodeFirstLibRepository = new EfCodeFirstLibRepository();
var createdPersonSmith = efCodeFirstLibRepository.PersonCreate(personSmith); // Insert new 'Person' record (from specified object values).
var foundPersonSmith = efCodeFirstLibRepository.PersonFind(createdPersonSmith); // Find newly created 'Person' record (e.g. 'Identity/Primary Key' will have been incremented).
var updatedPersonSmith = efCodeFirstLibRepository.DeepCloneViaJsonSerialization(foundPersonSmith); // Modify 'PetCount' property (incrementy by 10).
updatedPersonSmith.PetCount = updatedPersonSmith.PetCount + 10;
efCodeFirstLibRepository.PersonUpdate(foundPersonSmith, updatedPersonSmith); // Update 'Person' record (with increased 'PetCount').
efCodeFirstLibRepository.DeleteEntity(foundPersonSmith); // Remove/delete 'Person' record.
}