MSTest exposes some properties (see https://github.com/microsoft/testfx/blob/main/src/TestFramework/TestFramework.Extensions/TestContext.cs#L98-L119) that are kept only for compatibility with MSTest v1. These properties should have been marked as deprecated a long time ago.

I suggest that we mark TestContext.TestDir, TestContext.TestDeploymentDir and TestContext.TestLogsDir as obsolete and we indicate the correct replacement property. This way we will be able to remove them in the next version.