Code Coverage Analysis

Code Coverage Analysis:
Steps to get code coverage of a module:
1.Instrument the web service binary that you want coverage on: VsInstr.exe /coverage myWebService.dll. The tool executables can be found at \Program Files (x86)\Microsoft Visual Studio 9.0\Team Tools\Performance Tools. So first you need to go to this directory on cmd line to run the command.
For e.g. VsInstr.exe /coverage C:\build\Test10_150\Release\Test.dll
2. Start the monitor for collecting coverage data:
VSPerfCmd.exe /start:coverage /output:C:\CoverageData\150.coverage /cs /user:vkumar.
4.Verify the monitor has started: VSPerfCmd.exe /status:
If you will get an output similar to below message, then the coverage monitor has started:

Microsoft (R) VSPerf Command Version 9.0.30729 x86
Copyright (C) Microsoft Corp. All rights reserved.
Process and Thread Status
============================================================
Output File Name : C:\CoverageData\150.coverage
Collection mode : COVERAGE
Maximum Processes : 64
Maximum Threads : 256
Number of Buffers : 258
Size of Buffers : 65536
============================================================
Maximum Number of Processes : 64
Number of Active Processes : 0
Global Start/Stop Count : 1
Global Suspend/Resume Count : 0
============================================================
Users with access rights to monitor:
UserName (SID)
Test\vkumar(S-1-5-21-1462854013-198636-2508-34309)
NT AUTHORITY\SYSTEM (S-1-5-18)
5. Run the scenario or test cases that will exercise the Windows Service.
Stop the Windows Service and Shutdown the monitor: VSPerfCmd.exe /shutdown. The code coverage data should be saved at C:\CoverageData\150.Coverage. Do not move the .pdb files of the instrumented EXE or DLL. Otherwise, C:\CoverageData\150.Coverage will fail to load.

Error Handling and Logging

ClassLibrary Project:    Error Handling

using System;

using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;namespace ErrorHandling{

public class ErrorHandlingCls{
string _ModuleName,_PageURL,_EventName;
public string ModuleName {

get{
return _ModuleName;}

set{
_ModuleName = value;}
}

public string PageURL{

get{
return _PageURL;}

set{
_PageURL = value;}
}

public string EventName{

get{
return _EventName;}

set{
_EventName = value;}
}

/// <summary>/// This method is for preapare the error massage on base of Exception Object/// </summary>/// <param name="serviceException"></param>/// <returns></returns>public static string CreateErrorMessage(Exception serviceException){

StringBuilder messageBuilder = new StringBuilder();
try{
messageBuilder.Append("The Exception is:-"); messageBuilder.Append(
"Exception :: " + serviceException.ToString());
if (serviceException.InnerException != null){
messageBuilder.Append(
"InnerException :: " + serviceException.InnerException.ToString());}

return messageBuilder.ToString();}

catch{
messageBuilder.Append("Exception:: Unknown Exception.");
return messageBuilder.ToString();}
}

/// <summary>/// This method is for writting the Log file with message parameter/// </summary>/// <param name="message"></param>public static void LogFileWrite(ErrorHandlingCls objErr, string message){

FileStream fileStream = null;
StreamWriter streamWriter = null;
try{
string logFilePath = "c:\\LogError\\";logFilePath = logFilePath +
"ProgramLog" + "-" + DateTime.Today.ToString("yyyyMMdd") + "." + "txt";
if (logFilePath.Equals("")) return;#region Create the Log file directory if it does not exists
DirectoryInfo logDirInfo = null;
FileInfo logFileInfo = new FileInfo(logFilePath);logDirInfo =
new DirectoryInfo(logFileInfo.DirectoryName);
if (!logDirInfo.Exists) logDirInfo.Create();#endregion Create the Log file directory if it does not exists
if (!logFileInfo.Exists){
fileStream = logFileInfo.Create();
}

else{
fileStream = new FileStream(logFilePath, FileMode.Append);}
streamWriter =
new StreamWriter(fileStream);streamWriter.WriteLine(message);
}

finally{
if (streamWriter != null) streamWriter.Close();
if (fileStream != null) fileStream.Close();}
}

/// <summary>/// This method is for writting the Log file with message parameter/// </summary>/// <param name="message"></param>public static void LogFileWrite(string message){

FileStream fileStream = null;
StreamWriter streamWriter = null;
try{
string logFilePath = "c:\\LogError\\"; logFilePath = logFilePath +
"ProgramLog" + "-" + DateTime.Today.ToString("yyyyMMdd") + "." + "txt";
if (logFilePath.Equals("")) return;#region Create the Log file directory if it does not exists
DirectoryInfo logDirInfo = null;
FileInfo logFileInfo = new FileInfo(logFilePath);logDirInfo =
new DirectoryInfo(logFileInfo.DirectoryName);
if (!logDirInfo.Exists) logDirInfo.Create();#endregion Create the Log file directory if it does not exists
if (!logFileInfo.Exists){
fileStream = logFileInfo.Create();
}

else{
fileStream = new FileStream(logFilePath, FileMode.Append);}
streamWriter =
new StreamWriter(fileStream);streamWriter.WriteLine(message);
}

finally{
if (streamWriter != null) streamWriter.Close();
if (fileStream != null) fileStream.Close();}

}
}
　
}
Default.aspx.cs
using ErrorHandling;
using System;using System.Collections.Generic;using System.Data;using System.Data.SqlClient;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;namespace ClientAopp{

public partial class _Default : System.Web.UI.Page{
ErrorHandlingCls objError=new ErrorHandlingCls();

private void Page_Load(object sender, System.EventArgs e){

SqlDataReader objDataReader = null;
SqlConnection myConnection = null;
try{
string sql = "server=192.168.0.1;uid=username;pwd=mypass;database=mydb";myConnection =
new SqlConnection(sql);
SqlCommand myLogin = new SqlCommand("MyStoredProcedure", myConnection);myLogin.CommandType =
CommandType.StoredProcedure;
SqlParameter myParm1 = myLogin.Parameters.Add("@Id", SqlDbType.Int);myParm1.Value = 1;
myConnection.Open();
objDataReader = myLogin.ExecuteReader(
CommandBehavior.CloseConnection);}

catch (SqlException sqlex) // Catch SQL error message{
objError.ModuleName = "ABC";objError.PageURL =
"Default.aspx";objError.EventName =
"PageLoad";
ErrorHandlingCls.LogFileWrite(objError,ErrorHandlingCls.CreateErrorMessage(sqlex));}

catch (Exception ex) // Catch other exception message{
ErrorHandlingCls.LogFileWrite(objError, ErrorHandlingCls.CreateErrorMessage(ex));}

finally //Close DB objects{
if (objDataReader != null) objDataReader.Close();
if (myConnection != null) myConnection.Close();}
}
}
}