Load Test - Binding Context Parameters

The new Load Tests features that are coming with Visual Studio 2013 are great. In combination with Windows Azure and TFS Controllers, you can run load test using cloud infrastructure without having to deploy or configure something things on the cloud.
When developers start to create different web test that will be used for load tests they usually them in sub-tests and reuse them when is possible. For example very easily you can end up with something like this:

• Foo1WebTest
• Foo2WebTest
• Foo3WebTest
• BigFooWebTest

Where BigFooWebTest make calls to Foo1WebTest and Foo2WebTest.
If you started to extract context parameters from each web test you will observer a pretty odd behavior. By default it is not possible to bind a context parameter. This means that you will not be able to fetch data for a context parameter from a data source like a csv file or data base.
Even if you will write to the value of the parameter context the binding command (“{{..#TableName.CollumnName}}”) you will observe that this will not work. When you will run the test, the value of the context parameter will be the string value itself “{{..#TableName.CollumnName}}”.
In this moment it is not possible to bind a context parameter. The only available solution in this moment is to write a plugin for the test that will load the values from data source in memory. This plugin will be able to set the value of context parameter with the memory values.
For more information about load test plugin: http://msdn.microsoft.com/en-us/library/ms243153.aspx

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How to load a resouce dynamic

Mai mult ca sigur cu toti am folosit fisiere cu resurse (*.resx). Folosirea lor nu implica nici o problema, totul este destul de simplu, dar uneori apare nevoie sa accesam o resursa in mod dinamic.
De exemplu daca avem fisierul de resurse "CarResources.resx" si vrem sa accesam resursa 'Power' avem nevoie de urmatorul cod:

string powerLabel = CarResources.Power;

Dar apare urmatoarea problema, daca resursa de care avem nevoie o putem determina doar la runtime?
O solutie ar fi sa folosim ResourcesManager, care ne permite sa incarcam o anumita resursa in mod dinamic. Exemplul de mai sus ar trebuii rescris in felul urmator:

var carResource = new ResourceManager("CarResource",Assembly.GetExecutingAssembly());
var powerLabel = carResource.GetString("Power");

Trebuie avut grija din ce assembly incarcati resursa.

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