public void CreateCrmAccount()
{
//ARRANGE - set up everything our test needs
//first - set up a mock service to act like the CRM organization service
var serviceMock = new Mock <IOrganizationService>();
IOrganizationService service = serviceMock.Object;
//next - set a name for our fake account record to create
string accountName = "Lucas Demo Company";
//next - create a guid that we want our mock service Create method to return when called
Guid idToReturn = Guid.NewGuid();
//next - create an entity object that will allow us to capture the entity record that is passed to the Create method
Entity actualEntity = new Entity();
//finally - tell our mock service what to do when the Create method is called
serviceMock.Setup(t =>
t.Create(It.IsAny <Entity>())) //when Create is called with any entity as an invocation parameter
.Returns(idToReturn) //return the idToReturn guid
.Callback <Entity>(s => actualEntity = s); //store the Create method invocation parameter for inspection later
//ACT - do the thing(s) we want to test
//call the CreateCrmAccount method like usual, but supply the mock service as an invocation parameter
Guid actualGuid = MockDemo.CreateCrmAccount(accountName, service);
//ASSERT - verify the results are correct
//verify the entity created inside the CreateCrmAccount method has the name we supplied
Assert.AreEqual(accountName, actualEntity["name"]);
//verify the guid returned by the CreateCrmAccount is the same guid the Create method returns
Assert.AreEqual(idToReturn, actualGuid);
}
