runsettings are ignored during test discovery (data driven tests) #6990
Description
Describe the bug
During test discovery of DynamicData tests (using the ITestDataSource), the <EnvironmentVariables> section of the selected .runsettings file is ignored.
Steps To Reproduce
- Implement the following:
internal class ExampleTestDataSource : Attribute, ITestDataSource
{
public IEnumerable<object?[]> GetData(MethodInfo methodInfo)
{
yield return new object[] { Environment.GetEnvironmentVariable("TEST_ENV") };
}
public string? GetDisplayName(MethodInfo methodInfo, object?[]? data)
{
if (data != null)
{
var value = (string)data[0];
return $"{methodInfo.Name} - {value}";
}
return null;
}
}
[TestClass]
public class MyTests
{
[TestMethod]
[ExampleTestDataSource]
public void MyTest(string name)
{
Assert.IsTrue(!string.IsNullOrEmpty(name));
}
}
- Create a .runnsettings file with the following section:
<RunSettings>
<RunConfiguration>
<EnvironmentVariables>
<TEST_ENV>This is a string</TEST_ENV>
</EnvironmentVariables>
</RunConfiguration>
</RunSettings>
-
Configure TestExplorer to use your .runsettings file.
-
Observe that the test name (in test explorer) does not include the "This is a string" token.
-
Observe that MyTest fails.
Expected behavior
.Runsettings to be used during test discovery.
Actual behavior
.runsettings is ignored during test discovery.