For the best results it is recommended to save Fiddler recording session as a fiddler archive file *.saz as well as VSTS WebTest file.
Archive file will contain all requests with their corresponding responses and webtest will be used by VSTS during performance test.
In order to save recording as a fiddler archive:
At this point it is a good idea to export the recording to the VSTS WebTest format:
- Select all requests to be exported from Fiddler. This can be done by selecting Edit > Select All from the main menu
- Chose “Visual Studio WebTest” from the drop-down and click next button
- Select the location where to save the file
It is a good practice to give the same filename to both files since it will make it easier later on to match WebTest to original Fiddler archive file.
If all steps have been followed correctly two files should be created:
For the full guide to developing VSTS WebTests please refer to the Using Fiddler with VSTS.