title: How to mock a return value?
body: <p>I have a class:</p>
  
  <pre><code> public class BankingTransfer : IBankingTransfer
   {
      public decimal GetTrustAccountBalance(string Id, string Pin)
      {
          throw new NotImplementedException();
      }
  </code></pre>
  
  <p>Now I want to do a xunit test on it. But not sure how to test a dummy return value?</p>
  
  <p>My code:</p>
  
  <pre><code> public class GetTrustAccountBalanceUnitTest
   {
      [Theory]
      [InlineData("1234")]
      [InlineData("1234")]
      public void GetTrustAccountBalance_Should_Return_A_Value(string expectedId,string expectedPin)
      {
          // ARRANGE
          var bankingTransferMock =new Mock&lt;IBankingTransfer&gt;();
          // ACT
          bankingTransferMock.Setup(x=&gt;x.GetTrustAccountBalance(expectedId,expectedPin)).Returns()
          // ASSURE
      }
  }
  </code></pre>