I use to use cory foy's example, but it's a bit dated now.

Step 1:

Download fitnesse

http://fitnesse.org/FrontPage.FitNesseDevelopment.DownLoad

click the fitnesse.jar link

extract it to c:\fitnesse

run java –jar fitnesse.jar –p [port]

(If you want port 80 then leave off the –p and port)

Navigate to http://localhost/ to try it out or http://localhost:[port]

Step 2:

Get fitsharp so you have the dlls for making fixtures and slim runner

go to: http://github.com/jediwhale/fitsharp/downloads

extract it to c:\fitnesse\slim

Step 3:

Make your test fixtures class library in visual studio

Step 4:

reference the fit and fitsharp dlls from c:\fitnesse\slim

and reference any of your “System under test” dlls. (your dlls that your system uses that you want to test)

Step 5:

Write a fixture

using fit;

namespace Fitnesse

{

    public class CalculateDiscount : ColumnFixture

    {

    }

}

Step 6:

Make your first wiki page.

Such as editing the front page and adding MyFirstFitnessePage

It will show up like this after you save it:

MyFirstFitnessePage?

Click on the ‘?’ to create it.

Step 7: make it a test page

go to properties and change it to a “test” page.

Step 8: Add all this stuff to the top of it

!define TEST_SYSTEM {slim}

!define COMMAND_PATTERN {%m -r

fitSharp.Slim.Service.Runner,C:\Fitnesse\slim\fitsharp.dll %p}

!define TEST_RUNNER {C:\Fitnesse\slim\Runner.exe}

!path C:\projects\Fitnesse\Fitnesse\bin\Debug\Fitnesse.dll

(the last line should be a direct path to your fixtures dll)

Step 9:

Make a test table

|!-Fitnesse.CalculateDiscount-!|

|amount     |discount?    |

|0          |0             |

|100        |0             |

|999        |0             |

|1000       |0             |

|1010       |50.5          |

|1100       |55            |

|1200       |60            |

|2000       |1000          |

the !- -! Syntax forces literal text so it won’t interpret “CalculateDiscount” as a wiki page link you’ll get an error like this if you don’t do it

Could not find class CalculateDiscountATitleCreatePageHrefCalculateDiscountEditNonExistentTrueA

Apparently “ATitleCreatePageHrefCalculateDiscountEditNonExistentTrueA” gets appended when the ? is next to it.