Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again.

I was facing the above error when I was trying to connect to a shared folder, googled it a lot, with no luck, as there are lots of results but are not related. I was able to access this resource before and then suddenly I was receiving this error

“Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again”

until I found this post here http://travisepperson.blogspot.com/2007/01/windows-network-folder-specified-is.html

I tried the solution in and it worked

I opened command prompt “cmd”

I entered “net use” command, a list was displayed for me, one of them was on the same server of the shared resource I am trying to access

I entered “net use /delete [resource name]”

Then I was able to access the resource normally

Visual Studio Web Test: Generating Random unique parameters at runtime

I had a scenario that requires several fields to be unique, and I wanted to have a web test for this scenario. I had the problem of generating these unique parameters to be unique

The first naïve solution I used is to create these unique values using excel and then saving in csv file. Then in my scenario, I set the parameter to a data source from this csv file. But this required me every time I run the scenario to remove the values that are used

Second trial for me, I converted the recorded web test to a coded test, this allowed me to to change the parameters programmatically and also gave me lots of flexibility on the test, on the other hand I lost the usability and flexibility of the web test designer, where I can record more to these test, extract parameters easily, etc..

In the coded test, I was looking for the request that has the parameters that needs to be unique, then I created a function to create a 10 digits random number and returns this as string, like below

public string generateRandomId()
{
    Random rand = new Random();
    string[] random = new string[10];
    for (int i = 0; i < 10; i++)
    {
        random[i] = rand.Next(0, 9).ToString();
    }
    return string.Join("",random);
}

Then at the request parameter setting, I changed from

request8Body.FormPostParameters.Add("Form1:referenceNumberText", "12341212323");

to

request8Body.FormPostParameters.Add("Form1:referenceNumberText", generateRandomId());

Third trial which is the best as believe, I created a web test plugin to set a context parameter at the beginning of the test

First I created a context parameter, by doing right click on the web test, then selecting Add Context Parameter

Then I renamed this parameter to RandomText

Then following the instructions here, http://msdn.microsoft.com/en-US/library/ms243191(v=vs.80).aspx  I created a new project in my solution, and added a new class, called it WebTestPlugin.cs

Added reference to Microsoft.VisualStudio.QualityTools.WebTestFramework and added the following line at the top

using Microsoft.VisualStudio.TestTools.WebTesting;

Then Changed the class name and inherited from WebTestPlugin, the code looked like below

public class webTestPlugin : WebTestPlugin
{
    string randomTxt;
    public override void PreWebTest(object sender, PreWebTestEventArgs e)
    {
        randomTxt = generateRandomId();
        e.WebTest.Context["RandomText"] = randomTxt;
        base.PreWebTest(sender, e);
    }

public string generateRandomId()
{
    Random rand = new Random();
    string[] random = new string[10];
    for (int i = 0; i < 10; i++)
    {
        random[i] = rand.Next(0, 9).ToString();
    }
    return string.Join("",random);
}

}

Then I went to my web test project, added a reference to my plugin project

Then added the plugin to my web test

by doing the above, I had the flexibility of web test designer, and the flexibility of writing my own code in the web test

Best Practices for Coded UI Tests

Very interesting article, it is a must to read carefully before using coded UI tests
http://msdn.microsoft.com/en-us/library/dd380782.aspx

Visual Studio Web Test: Excluding resources that are failing the test

I had a recorded scenario that when running back, one resource was giving 404 error, and because of that the test was failing

this resource was not important, it was just a css file, I looked on how to exclude such non-important resources from the test, I found some useful information here http://blogs.msdn.com/b/densto/archive/2007/06/27/webtestrequest-dependentrequests-collection.aspx

so first I converted my test to web coded test, then I looked for the request that was causing the problem, then I added this line before the yeld command for the request

request4.PostRequest += new EventHandler<PostRequestEventArgs>(request4_PostRequest);

Then added the request4_PostRequest implementation at the end

void request4_PostRequest(object sender, PostRequestEventArgs e)
{
    List<WebTestRequest> remove = new List<WebTestRequest>();
    foreach (WebTestRequest dependent in e.Request.DependentRequests)
    {
        if (dependent.Url.EndsWith("template.css"))
        {
            remove.Add(dependent);
        }
    }

    foreach (WebTestRequest dependent in remove)
    {
        e.Request.DependentRequests.Remove(dependent);
    }
}

Doing the above, I am able to run the test and getting pass as a final result

Another easier way I found later from Ed Glas post http://blogs.msdn.com/b/edglas/archive/2008/08/06/masking-a-404-error-in-a-dependent-request.aspx

This way can be done on the recorded scenario directly without converting to coded test

Visual Studio Web test, creating extraction rule

I was creating a web test for a flow, with several forms, I had an ID that I wanted to use later in other requests, that wasn’t detected by the Visual studio parameter automatic linking.

The easiest way to do that

1- I did a run for the recorded scenario

2- I searched for the request that was displaying the ID on the screen

3- I went to the Response tab, where I can see the response html

4- I looked for the ID that I need to extract

5- Select the text that you want to extract, then do a right click and select Add Extraction Rule

After doing so, the web test will be opened and a confirmation will be displayed showing the rule name

 

If the required text is at the beginning of the line, you might need to add “\n” at the end of the “Starts with”