Should my MVC Controller tests return

I am testing some MVC Controllers. I am relatively new to this particular method of testing. When I mock the controller and method properties, then execute the method, the method returns <empty>. So either it is supposed to do that or I am not connected to the database. I added some connection strings and data-sources to my app.config file and no luck. Still returns <empty>

My App.Config file (snippet)

 <connectionStrings>
<!-- <add name="DbContexy" providerName="System.Data.SqlClient" connectionString="Persist Security Info=False;User ID=user;Password=Password;Initial Catalog=Db;Data Source=MySource" />-->
<!-- Inserted Connection String Below -->
<add name="DbContext" providerName="System.Data.SqlClient" connectionString="user id=User;password=hello;Data Source=exampleSource;Database=MyDb" />
<!--<add name="DbContext" providerName="System.Data.SqlClient" connectionString="Persist Security Info=False;User ID=user;Password=password;Initial Catalog=Sb;Data Source=.\MySource" />-->

My Test - Returns when Assert.AreSame is called INSTEAD of .AreEqual

[Test]
public void GetContacts_ReturnContacts()
{
    //Arrange
    var mockContactManager = A.Fake<IContactManager>();
    var mockContext = A.Fake<CallerInfo>();
    var mockCallerInfoManager = A.Fake<ICallerInfoManager>();
    var mockSiteRepository = A.Fake<ISiteRepository>();
    var mockContactController = A.Fake<ContactController>();
    mockContext.SiteLocationCode = "US1";
    const int mockContactId = 168;

mockContext.ContactId = mockContactId;

List<Contact> expected = new List<Contact> { }; // What we expect to get back

A.CallTo(() => mockContactManager.GetContacts(mockContext.SiteLocationCode)).Returns(expected);

using (mockContactController = new ContactController(mockContactManager, mockCallerInfoManager, mockSiteRepository))
{
    //Act
    List<Contact> returnedContacts = mockContactController.GetContacts();

    //Assert
Assert.AreEqual(expected, returnedContacts);
    }
    }

My Controller

  [HttpPost]
    [ActionName("RetrieveContacts")]
    public List<Contact> GetContacts([FromBody]string query)
    {
        var context = GetContext();           
        return _contactManager.GetContacts(context.SiteLocationCode, query);
    }