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简介：
PICT（Pairwise Independent Combinatorial Testing ）工具原是微软公司内部使用的一款自动生成成对组合测试用例的命令行工具，现在对外提供，可以从互联网上下载到。
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使用：
1.准备的文本文件(.txt) ?内容包括(注意格式<ParamName> :?<Value1>,<Value2>,<Value3>,...)，e.g
??????????????? OS:Win XP,Win 2003 server,Win7,Win NT4
??????????????? Language:English,German,Chinese
??????????????? CLR:Installed,not installed
???????????????? MyApp:yes,no
???????????????? IE:5.0,6.0,7.0,8.0,Firefox
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2.在命令行下运行pict程序，如下；
也可以把输出结果重定向到一个文件，e.g? E:&;pict? cc.txt >result.txt
E:&;pict cc.txt
OS????? Language??????? CLR???? MyApp?? IE
Win NT4 English Installed?????? no????? Firefox
Win XP? Chinese not installed?? yes???? 6.0
Win7??? German? not installed?? no????? 5.0
Win 2003 server English Installed?????? yes???? 5.0
Win XP? Chinese Installed?????? no????? 7.0
Win NT4 German? not installed?? yes???? 5.0
Win7??? English Installed?????? yes???? 7.0
Win 2003 server German? not installed?? no????? 7.0
Win 2003 server Chinese not installed?? yes???? Firefo
Win NT4 German? Installed?????? yes???? 8.0
Win 2003 server English not installed?? no????? 8.0
Win7??? Chinese not installed?? yes???? Firefox
Win XP? English not installed?? yes???? 8.0
Win XP? Chinese not installed?? no????? 5.0
Win7??? German? Installed?????? no????? 6.0
Win NT4 Chinese not installed?? yes???? 7.0
Win XP? German? Installed?????? yes???? Firefox
Win NT4 English Installed?????? yes???? 6.0
Win7??? Chinese Installed?????? no????? 8.0
Win 2003 server English not installed?? no????? 6.0
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3.更多的用法之约束条件
在有前提条件的情况下，如果MyApp的旧版本已经在目标机器上安装，那就说明CLR已经安装，那么就应该去掉MyApp：Yes和CLR：not installed这种不合逻辑的组合。e.g
?????????????? OS:Win XP,Firefox
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????????????????? #MyApp need CLR
???????????????? if [MyApp] = “yes” then [CLR]=“Installed”;
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4.更多的用法之子模型
一般用测试用例需要同时考虑硬件和软件组合的情况下，例如：
PLATFORM:? x86,ia64,amd64
CPUS:????? Single,Dual,Quad
RAM:?????? 128MB,1GB,4GB,64GB
HDD:?????? SCSI,IDE
OS:??????? NT4,Win2K,WinXP,Win2K3
IE:??????? 4.0,5.0,5.5,6.0
APP:?????? SQLServer,Exchange,Office
{ PLATFORM,CPUS,RAM,HDD } @ 3
{ OS,IE } @ 2
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层次关系
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5.子模型与约束条件结合
PLATFORM: x86,amd64
CPUS:???? Single,Quad
RAM:????? 128MB,64GB
HDD:????? SCSI,IDE
OS:?????? NT4,Win2K3
IE:?????? 4.0,6.0
{ PLATFORM,HDD } @ 2
{ OS,IE } @ 2
IF [PLATFORM] in {"ia64","amd64"} THEN [OS] in {"WinXP","Win2K3"};
IF [PLATFORM] = "x86" THEN [RAM] <> "64GB";
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下载及帮助：
最新pict工具下载：
http://msdn.microsoft.com/en-us/testing/bb980925.aspx
PICT工具原理和算法实现可以参考这篇文章：
http://msdn.microsoft.com/en-us/library/cc150619.aspx
帮助文档： 安装目录下的 PICTHelp.htm
（编辑：李大同）
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