Part-12: Create Sample Load Test Plug-ins–Performance Test in VS 2017

Load Test Plug-ins can be developed to expand or modify the Load Test built in functionality. Load Test allows to add Plug-ins and these Plug-in executes at the time of Load Test run based on specified Events.

To create Load Test Plug-ins, must create a class that inherits the ILoadTestPlugin interface. This class must implement the Initialize method of this interface. Below are the to create Load Test Plug-ins and Add them to Load Tests.

Below sample sends an Email once Load test finishes.

a. Open the test project that contains your load test.

b. Add a new class file

c. Add a using statement for

using Microsoft.VisualStudio.TestTools.LoadTesting;

d. Have the class implement the ILoadTestPlugin interface.

public class NotifyOnLoadTestCompletion : ILoadTestPlugin

e. There is one method in the interface that you must implement:

public void Initialize (Load Test)

PFB for the complete Load Test Plug-in (Taken reference from Microsoft MSDN Article)

using System;

using Microsoft.VisualStudio.TestTools.LoadTesting;

using System.Net.Mail;

using System.Windows.Forms;

namespace SampleLoadTestPlugin

{

public class NotifyOnLoadTestCompletion : ILoadTestPlugin

{

LoadTest myLoadTest;

public void Initialize(LoadTest loadTest)

{

myLoadTest = loadTest;

myLoadTest.LoadTestFinished += new

EventHandler(myLoadTest_LoadTestFinished);

}

void myLoadTest_LoadTestFinished(object sender, EventArgs e)

{

try

{

// place custom code here

MailAddress MyAddress = new MailAddress(“someone@example.com”);

MailMessage MyMail = new MailMessage(MyAddress, MyAddress);

MyMail.Subject = “Load Test Finished — Admin Email”;

MyMail.Body = myLoadTest..Name + ” has finished.”;

SmtpClient MySmtpClient = new SmtpClient(“localhost”);

MySmtpClient.Send(MyMail);

}

catch (SmtpException ex)

{

}

}

}

}

Please refer below references for Load Test Plug-in samples and List of events those supported in Load Test Plug-ins.

https://msdn.microsoft.com/en-us/library/ms243153.aspx