Using Moq, how do I set up a method call with an input parameter as an object with expected property values?

Question

 var storageManager = new Mock<IStorageManager>();   storageManager.Setup(e => e.Add(It.IsAny<UserMetaData>())); 

The Add() method expects a UserMetaData object which has a FirstName property.

I'd like to make sure that an object of type UserMetaData with the FirstName of "FirstName1" has been passed.

Answer 1

You can use Verify.

Examples:

Verify that Add was never called with an UserMetaData with FirstName!= "FirstName1":

storageManager.Verify(e => e.Add(It.Is<UserMetaData>(d => d.FirstName!="FirstName1")), Times.Never()); 

Verify that Add was called at least once with an UserMetaData with FirstName== "FirstName1":

storageManager.Verify(e => e.Add(It.Is<UserMetaData>(d => d.FirstName=="FirstName1")), Times.AtLeastOnce()); 

Verify that Add was called exactly once with FirstName == "Firstname1" and LastName == "LastName2":

storageManager.Setup(e => e.Add(It.Is<UserMetaData>(data => data.FirstName == "FirstName1"                                                          && data.LastName  == "LastName2")));  ...  storageManager.VerifyAll(); 

Answer 2

You can use the It.Is method:

storageManager.Setup(e => e.Add(It.Is<UserMetaData>(data => data.FirstName == "FirstName1")));