Sample file for discussion in SpecFlow google group [http://groups.google.com/group/specflow/browse_thread/thread/191919a95970b2a0]

SpecFlow-RhinoMocks-AAA.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using TechTalk.SpecFlow;
using Rhino.Mocks;
using Domain;
using NUnit.Framework;

namespace SpecFlowGroup1 {
    [Binding]
    public class StepDefinition1 {

       [Given(@"that there are (\d+) records on the database")]
       public void that_there_are_x_records_on_the_database(int Count)
       {
           var segmentRepo = MockRepository.GenerateMock<ISegmentRepository>();
           segmentRepo.Expect(x => x.Get_segments_count()).Return(Count);

           ScenarioContext.Current.Add("segmentRepo", segmentRepo);
       }

       [Given(@"that the file (\w+\.\w+) has (\d+) lines")]
       public void And_that_file_x_has_x_lines(string Filename, int Lines)
       {
           var lines = "";
           for (var i = 0; i < Lines; i++)
               lines += "01-01-01-001-001,10/23/2010 10:03 AM,30,80,60\n";

           var ioWrapper = MockRepository.GenerateMock<ISystemIOWrapper>();
           
           ioWrapper.Expect(x => x.File_contents(Filename)).IgnoreArguments().Return(lines.Substring(0, lines.Length - 2).Split('\n'));
           
           ScenarioContext.Current.Add("ioWrapper", ioWrapper);
       }

       [When(@"the file is parsed")]
       public void When_the_file_is_parsed()
       {
           var segmentRepo = (ISegmentRepository)ScenarioContext.Current["segmentRepo"];
           var ioWrapper = (ISystemIOWrapper)ScenarioContext.Current["ioWrapper"];

           var parser = new NewFileParser();
           parser.IO_wrapper = ioWrapper;
           parser.Segment_repository = segmentRepo;

           parser.Parse("filePath");

           ScenarioContext.Current.Add("parser", parser);
       }

       [Then(@"the file must be flagged as valid")]
       public void Then_the_file_must_be_flagged_as_valid()
       {
          // I do nothing here, but I think I should
       }

       [Then(@"the formatter process must be called")]
       public void Then_the_formatter_process_must_be_called()
       {
           var parser = (NewFileParser)ScenarioContext.Current["parser"];

           var segmentRepo = (ISegmentRepository)ScenarioContext.Current["segmentRepo"];
           var ioWrapper = (ISystemIOWrapper)ScenarioContext.Current["ioWrapper"];

           segmentRepo.VerifyAllExpectations();
           ioWrapper.VerifyAllExpectations();
           
           Assert.IsTrue(parser.Is_valid);
       }
    }
}