anchor.diff:  open System.Collections.Generic
   open Xunit
   
  +let private verify = Swensen.Unquote.Assertions.test
  +
   [<Fact>]
   let FixtureAutoMocksInterface() =
       // Fixture setup
  
positive.code:     // Exercise system
      let result = fixture.Create<AbstractTypeWithConstructorWithMultipleParameters<int, int>>()
      // Verify outcome
      Assert.NotEqual(Unchecked.defaultof<int>, result.Property1)
      Assert.NotEqual(Unchecked.defaultof<int>, result.Property2)
      // Teardown
  
negative.code:     // Exercise system
      let result = fixture.Create<IInterface>()
      // Verify outcome
      verify <@ typeof<IInterface>.IsAssignableFrom(result.GetType()) @>
      // Teardown
  
  [<Fact>]
  