IServiceProvider::QueryService tests

[Konstantin Kondratyuk]

In dlls/mshtml/tests/htmldoc.c there is a comment:

/*
     * Services used by HTMLDocument:
     *
     * IOleUndoManager
     * IInternetSecurityManager
     * ITargetFrame
     * {D5F78C80-5252-11CF-90FA-00AA0042106E}
     * HTMLFrameBase
     * IShellObject
     * {3050F312-98B5-11CF-BB82-00AA00BDCE0B}
     * {53A2D5B1-D2FC-11D0-84E0-006097C9987D}
     * {AD7F6C62-F6BD-11D2-959B-006097C553C8}
     * DefView (?)
     * {6D12FE80-7911-11CF-9534-0000C05BAE0B}
     * IElementBehaviorFactory
     * {3050F429-98B5-11CF-BB82-00AA00BDCE0B}
     * STopLevelBrowser
     * IHTMLWindow2
     * IInternetProtocol
     * IWebBrowserApp
     * UrlHostory
     * IHTMLEditHost
     * IHlinkFrame
     */

It is confirmed by tests? I have not found.

It seems to me, also there should be IHTMLEditServices interface support. How 
it is correct to add the test on IServiceProvider::QueryService?

Thanks.