"Test | New Test" command

Hello

Please help me to resolve my problem. When a solution has a project of the type which is implemented in our unmanaged package, the "Test | New Test" command stops to work: "Add New Test" dialog is not shown, but instead the following message box is displayed:

Microsoft Visual Studio
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The method or operation is not implemented.
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OK
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Are you aware of any reasons for this behavior
Please note that our package doesn't provide any functionality which is related to tests.

Visual Studio Team System23

I believe that my thread was moved from the Visual Studio Extensibility forum to the Visual Studio Team System - Testers forum by mistake.
Let me clarify my problem. Our company is implementing a package for Visual Studio. This package has nothing to do with tests and does not work with the "Test | New Test" main menu item. However, when the package is installed into Visual Studio Team Suite, selecting "Test | New Test" results in the "The method or operation is not implemented." error message.
I would like to get some hints which would help me understand what is wrong in our package. For example, should our project implement some specific interface in order to avoid this behaviour

Roman, this seems to be a bug in VS Team Test, can you please enable tracing and send us trace log file To enable tracing refer to the following post (scroll to the bottom of the page).

Thank you,
Michael Koltachev
Visual Studio Team System

Thank you for your answer but the problem was in our package. A mistake was in the ProjectItems interface implementation. Sorry to trouble you.