FXCop an Automated tool for code review

Introduction

Thanks to FXCop teams and Microsoft for presenting FXCop tool to us for analysis of code. This is widely used for code review purpose. And which analyze compiled .NET assemblies for compliance. It is a tool to check your code against the rules or guidelines defined by FXCop engine and/or your own rules. It is freely available from Microsoft. You can download it from here.

FXCop supports assemblies written in C#, VB.NET, C++/CLI, and other managed .NET languages.

Thanks to NITIN for explaining FXCop tool which helped me to go deep inside FXCop functionality, purpose and integration with VS.Net.

FXCop Aims

FXCop aims to make it easy to Act in accordance with someone's rules, commands, or wishes by scanning compiled assemblies/dll/exe and creating a report that listed out the details coding violations and suggests code fixes and improvements.

Modes of Operation

FXCop can be operated in two modes:

1. Through GUI and

2. Through command-line mode.

Behind the screen

FXCop (1.30 and higher) performs analysis through a technique called Introspection. The use of the Introspection engine allows for much faster/ richer analysis infrastructure and supports multithreaded analysis to read the code of your assembly and process against predefined rules categorized as naming conventions, library design, localization, security, performance, portability, interoperability etc.

Every assembly in .NET has metadata, which describes the assembly and all types used in the assembly.

FXCop uses this metadata to learn what is going on in the code. In addition, it examines the Microsoft Intermediate Language (MSIL) generated when code is compiled. The combination of examining the metadata and MSIL provides FXCop plenty of information to gain an understanding of what the code is doing. It compares your code against the rules and generates a message for every instance where code doesn't conform to the rules.

Rules defined by FXCop

1. Design Rules

2. Globalization Rules

3. Interoperability Rules

4. Mobility Rules

5. Naming Rules

6. Performance Rules

7. Portability Rules

8. Security Rules

9. Usage Rules

Last but not the least: The FXCop Introspection engine can be leveraged to develop custom FXCop rules specific to the project needs.

Report generation

The report generated by an FXCop run detail the violations and the files, where they are found; as shown in the below figure. These are then fixed by developers; the code is then committed and FXCop is re-run to check if the code has successfully passed through all the checks.

fig: Report generated by FXCop.

Integrate with Visual studio

In the Visual Studio .NET IDE, navigate to Tools -> External Tools option;

on click of External tool one new dialog box would open.click on Add button to display the new configuration dialog box as below:

fig: Adding FXCop to External toll

On new windows set the parameter as below:
1. ADD: Click on ADD button to add an Fxcop as external tool
2. Title: provide an external toll name (something like FxCop).
3. Command: To set the value of the Command text box, browse to the location where FxCop
is installed, and select FxCopCmd.exe. (in my case it is at
C :\Program Files\Microsoft FxCop 1.36\FxCopCmd.exe)

4. Argument : In the Arguments text box, specify /console (or /c) in addition to any command-

line options you use when running the analysis from the command line. The

value of a command-line option must be enclosed in quotation marks if the value

contains any spaces. in my case i have set the value as :

/c /f:"D:\NWAAutomationCode\bin\Debug" /r:"C:\Program
Files\Microsoft FxCop 1.36\Rules" /consolexsl:"C:\Program
Files\Microsoft FxCop 1.36 \Xml\VSConsoleOutput.xsl"

Some key arguments explained below:

• /c direct FXCop analysis to console or output window in IDE.

• /f: - where indicates the executable (EXE), or Dynamic Link
Library (DLL), or a directory to browse for target assemblies
("D:\NWAAutomationCode\bin\Debug").

• /p: - indicates the FXCop project as the input parameter, and refers to the
Corresponding FXCop project file.

• /s - Indicates FXCop to include the summary report with the informational message. • /r: - Indicates the directory location where FXCop rules library is saved (typically \Microsoft FxCop 1.36\Rules). This will load the entire rules library (.dll files) from the path, during the run.

5. Initial Directory : Set the Initial Directory to the location where FxCopCmd should start.
("C:\Program Files\Microsoft FxCop 1.36")

6. Select the Use Output window check box.

7. Click OK.

at last we have integarted FXCop to our VS.Net.
Now to Run this FXCop for Code Review analysis Click on Tools, under drop down menu select FXCop as shown below:

fig: Run FXcop through VS.Net

On click of FXCop ,the FXCop Engine would start Analysis our code w.r.t selected Rules and The analysis results will be posted in the "Output Window" of VS with the rule name, code file name, and error details as shown below ,The developer can click on the relevant FXCop error and navigate to the source-code to understand the problem and then fix it.

fig: OutPut Report by FXCop

Hope it would be Usefull for all of you.

Comments and suggestion always welcome.
Please feel free to put some comments.

References:
1. http://msdn.microsoft.com/en-gb/magazine/cc188721.aspx
2. http://www.binarycoder.net/fxcop/html/tutorial.html
3. http://www.codeproject.com/KB/dotnet/FxCopIntegrateVSNET.aspx
4. http://articles.techrepublic.com.com/5100-10878_11-6152637.html
Thanks,
Md.Jawed

How to handle JavaScript pop-up window, file download handler in WATiN

1. How to handle pop-UP using WATiN.

1.1 Suppose that we have scenario like on click of button/link etc we are calling a JavaScript function and that JavaScript function will open a HTML pop up window. To handle this the WATiN code would be something like :

//Open our main site
IE ie = new IE(“go to some URL”);
//Create an Instance of ConfirmDialogHnadler;
AlertAndConfirmDialogHandler myHandler = new AlertAndConfirmDialogHandler();
//Declare an object of HTMLDialog
HtmlDialog myModalHandler;
ie.AddDialogHandler(myHandler);
//The button that opens the HTML dialog must be clicked with NO WAIT
ie.Link(Find.ByText("Click to see a demo popup window")).ClickNoWait();
//Hook the PopUp by title/name/type etc.
myModalHandler = ie.HtmlDialog(Find.ByTitle(new Regex("MyTestPopUp")));
//Click on button which is on PopUp window.
myModalHandler.Button(new Regex("BtnSubmit")).ClickNoWait();

1.2 In this scenario through JavaScript function if we are opening a POP-Up and that pop up windows is coded in aspx. Then the WATiN code will be something like this :

//go to main window

IE ie = new IE("gotosomeURL");

//Click on link to open popup window

ie.Link(Find.ByText("open popup")).ClickNoWait();

//Hook the new popup by url/type/title etc

string url = "MYpopUp.aspx";

Regex regUrl = new Regex(url);

IE br = IE.AttachToIE(Find.ByUrl(regUrl));

//Type some text in text box which is on popup window

br.TextField("TextBox1").TypeText("MyName");

//Click on button which is on popup window

br.Button(new Regex("Button1")).ClickNoWait();

2. Download a zip file from popup window

//Open an Main website(i m assuming that you r not signout of codeproject we

IE ie = new IE("http://www.codeproject.com/KB/applications/OrkutBirthdayScrap.aspx"); //Create an Instance of FileDownloadHandler by passing open zip file name as constructor

FileDownloadHandler fileDownloadHandler = new FileDownloadHandler("BirthDayScrapOrkut.zip");

//Add this instance of FileDownloadHandler to DialogHander

ie.AddDialogHandler(fileDownloadHandler)

//User DialogWatcher to watch open filehandler windows
using (new UseDialogOnce(ie.DialogWatcher, fileDownloadHandler))
{
//Click on link Download source code to open zip file
ie.Link(Find.ByText("Download source - 1.9 MB")).ClickNoWait();
//Wait for 30 seconds to handle File Download
fileDownloadHandler.WaitUntilFileDownloadDialogIsHandled(30);
fileDownloadHandler.WaitUntilDownloadCompleted(200);
}
//Remove Watcher
ie.DialogWatcher.RemoveAll(fileDownloadHandler);

HAPPY AUTOMATION..

Please leave your comments and suggestion.Thanks!!!