c# - How to access TestRunParameters within RunSettings file

Question

Reading through https://msdn.microsoft.com/en-us/library/jj635153.aspx I have created a .RunSettings files with a few parameters similar to the example:

  <TestRunParameters>
    <Parameter name="webAppUrl" value="http://localhost" />
    <Parameter name="webAppUserName" value="Admin" />
    <Parameter name="webAppPassword" value="Password" />
  </TestRunParameters>

I plan on having a .RunSettings file for each of our environments with appropriate URLs and credentials for running a CodedUI test on the specified RunSettings file's environment.

I can see that from command line to reference the Settings file I can run:

vstest.console myTestDll.dll /Settings:Local.RunSettings /Logger:trx
vstest.console myTestDll.dll /Settings:QA.RunSettings /Logger:trx

etc...

But I don't see any way that calls out how to actually utilize the TestRunParameters from within the codedUI test.

What I would like to do is set up test initializers that use the TestRunParameters to determine where to log in, and what credentials to use. Something like this:

[TestInitialize()]
public void MyTestInitialize()
{

    // I'm unsure how to grab the RunSettings.TestRunParameters below
    string entryUrl = ""; // TestRunParameters.webAppUrl
    string userName = ""; // TestRunParameters.webAppUserName
    string password = ""; // TestRunParameters.webAppPassword

    LoginToPage(entryUrl, userName, password);
}

public void LoginToPage(string entryUrl, string userName, string password)
{
    // Implementation
}

Information on how to reference the TestRunParameters is greatly appreciated!

EDIT

/// <summary>
/// Summary description for CodedUITest1
/// </summary>
[CodedUITest]
public class CodedUITest1
{

    public static string UserName = string.Empty;

    [ClassInitialize]
    public static void TestClassInitialize(TestContext context)
    {
        UserName = context.Properties["webAppUserName"].ToString();
        Console.WriteLine(UserName);
    }

    [TestMethod]
    public void CodedUITestMethod1()
    {
        this.UIMap.RecordedMethod1();
        // To generate code for this test, select "Generate Code for Coded UI Test" from the shortcut menu and select one of the menu items.
    }

    // Rest of the default class - TestContext instantiation, UI map instantiation, etc
}

The exception I'm getting when running:

NullReference Exception

@williamfalconeruk I have updated my test class as above, but I am still getting the same error, any idea what I'm doing wrong?

question from:https://stackoverflow.com/questions/31707415/how-to-access-testrunparameters-within-runsettings-file

Answer 1

For those that use Resharper with this issue, I discovered the fix (no need to disable Resharper):

1. Go to Visual Studio top menu -> Resharper -> Options

2. Find the Tools section, expand "Unit Testing"

3. Click on "MsTest". The checkbox should be on enabled, but the Test Settings file path below that may be blank. If it is, click on browse and select the runsettings file you want to use.

4. Click save, rebuild and try to run the tests, the parameters should now work.

Not sure why but simply selecting the Test Settings file from the Tests menu -> Test Settings does not actually work when using Resharper, so this file needs to be explicitly pointed to directly in the Resharper options.