NUnit是一款堪与JUnit齐名的开源的回归测试框架，供.net开发人员做单元测试之用，可以从www.nunit.org网站上免费获得，最新版本是2.5。Mono 3.2 源码安装的，在/usr/bin/ 下面有2.4.8 版本：
[azureuser@mono /]$ /usr/bin/nunit-console4
NUnit version 2.4.8
Copyright (C) 2002-2007 Charlie Poole.
Copyright (C) 2002-2004 James W. Newkirk, Michael C. Two, Alexei A. Vorontsov.
Copyright (C) 2000-2002 Philip Craig.
All Rights Reserved.
Runtime Environment -
OS Version: Unix 2.6.32.279
CLR Version: 4.0.30319.17020 ( 3.3.0 (master/1022c50 Thu Jul 25 13:16:35 UTC 2013) )
fatal error: no inputs specified
本文用一个BDD的框架Bddify 进行测试，关于这个框架的更详细信息可以参看 BDDfy In Action。
[azureuser@mono /]$ sudo /usr/bin/nunit-console4 /home/azureuser/BddifySamples/Bddify.Samples.dll
NUnit version 2.4.8
Copyright (C) 2002-2007 Charlie Poole.
Copyright (C) 2002-2004 James W. Newkirk, Michael C. Two, Alexei A. Vorontsov.
Copyright (C) 2000-2002 Philip Craig.
All Rights Reserved.
Runtime Environment -
OS Version: Unix 2.6.32.279
CLR Version: 4.0.30319.17020 ( 3.3.0 (master/1022c50 Thu Jul 25 13:16:35 UTC 2013) )
.Story: Account holder withdraws cash
As an Account Holder
I want to withdraw cash from an ATM
So that I can get money when the bank is closed
Scenario: Account has insufficient fund
Given the Account Balance is $10
And the Card is valid
And the machine contains enough money
When the Account Holder requests $20
Then the ATM should not dispense any Money
And the ATM should say there are Insufficient Funds
And the Account Balance should be $20
And the Card should be returned
.Story: Account holder withdraws cash
As an Account Holder
I want to withdraw cash from an ATM
So that I can get money when the bank is closed
Scenario: Account has sufficient fund
Given the account balance is $100
And the Card is valid
And the machine contains enough money
When the account holder requests $20
Then the ATM should dispense $20
And the account balance should be $80
And the card should be returned
.Story: Account holder withdraws cash
As an Account Holder
I want to withdraw cash from an ATM
So that I can get money when the bank is closed
Scenario: Card has been disabled
Given the Card is disabled
When the Account Holder requests 20
Then Card is retained
And the ATM should say the Card has been retained
.Story: Tic tac toe
As a player
I want to have a tic tac toe game
So that I can waste some time!
Scenario: Cat's game
Given the board rows looks like [X, O, X], [O, O, X] and [X, X, O]
Then it should be a cats game
.Story: Tic tac toe
As a player
I want to have a tic tac toe game
So that I can waste some time!
Scenario: O wins
Given the following board X, X, O, X, O, , , ,
When the game is played at (2, 0)
Then the winner should be O
.Story: Tic tac toe
As a player
I want to have a tic tac toe game
So that I can waste some time!
Scenario: When x and o play their first moves
Given a new game
When X and O play on (0, 0), (2, 2)
Then the board state should be X, , , , , , , , O
.N.Story: Tic tac toe
As a player
I want to have a tic tac toe game
So that I can waste some time!
Scenario: X wins
Given the board rows looks like [X, X, O], [X, X, O] and [O, O, ]
When x plays in the bottom right
Then the winner should be x
Tests run: 7, Failures: 0, Not run: 1, Time: 0.775 seconds
Introduction to bddify: A Simple to Use and Extend BDD Framework for .NET