How to maintain state in a data-driven unit test
Imagine you need to maintain a list of processed data rows in a running data-driven unit test. Well, you can use the code below as a starting point:
"System.Data.SqlClient", "Data Source=.;Initial
public void Test()
TestContext.Properties["Session"] = Guid.NewGuid();
Guid session = (Guid)TestContext.Properties["Session"];
// Now add your unit test code here
TestContext is the way to go in order to maintain state during one test instance. The main point here is that a data-driven test is viewed as a single test instance (although the test method is called many times for each row of the data table).
You can also use the above unit test in a load test scenario knowing that the state of each logical load test thread is maintained independently.