Support DataSourceAttribute in .Net Core.

Description

We have following code

[TestMethod]
[DeploymentItem("MyTests.Configuration.xml")]
[DataSource("Microsoft.VisualStudio.TestTools.DataSource.XML", "|DataDirectory|\\MyTests.Configuration.xml", "MyTestCase", DataAccessMethod.Sequential)]
public void GetFiles_OnRootDirectory_CallsApiCorrectly()
{
    var foo = TestContext.DataRow["MyFooData"]);
}

with following xml file

<?xml version="1.0" encoding="utf-8" ?>
<Rows>
  <MyTestCase>
    <MyFooData>true</MyFooData>
  </MyTestCase>
  <MyTestCase>
    <MyFooData>false</MyFooData>
  </MyTestCase>

  <OtherTestCase>
    <MyFooData>false</MyFooData>
  </OtherTestCase>
</Rows>

Is TestContext.DataRow expected to come to MsTest v2, or is it any other way to do the same thing?

Steps to reproduce

1. Install .NET Core 2.0.0-preview2-006497
2. Target the test project to ,NET Core 2.0
3. Use MSTest.TestAdapter version 1.2.0-beta
4. Try to build

Expected behavior

The compile past

Actual behavior

I get following build error

error CS1061: ‘TestContext’ does not contain a definition for ‘DataRow’ and no extension method ‘DataRow’ accepting a first argument of type ‘TestContext’ could be found (are you missing a using directive or an assembly reference?)

Environment

.NET Core 2.0.0-preview2-006497 Visual Studio 15.3.0 preview 7.0 Windows 10

[cilerler]

@rhyous

1. The very basic example I provided above is for demonstration purpose only to let others see how easy it is to implement it. I literally didn’t expect no one to use it for production.
2. As you already mentioned above you have compiler directives which means it should not break your code base. (you can’t expect everyone having a need to support multiple frameworks, many developers are developing fresh new projects and the method I presented may help them to continue with the latest stuff)
3. The situation is pretty simple writing your own parser VS waiting for years to get it from Microsoft. (Well, I usually prefer to write my own at this point in order to be able to use the latest stuff)

Therefore please take it into the consideration that it could be very easy workaround where things are not complicated as it in your projects.

[rhyous]

Trying to move my Unit Tests to .NET Core 2.0. Of course, I have many row tests. I’ll have a look at Dynamic data. But the problem is all the existing row tests use DataSourceAttribute.