public async Task ReleaseProjectContextAsync_UnregistersContextWithTracker()
        {
            IWorkspaceProjectContext result          = null;
            var activeWorkspaceProjectContextTracker = IActiveWorkspaceProjectContextTrackerFactory.ImplementReleaseContext(c => { result = c; });

            var provider = CreateInstance(activeWorkspaceProjectContextTracker: activeWorkspaceProjectContextTracker);

            var projectContext = IWorkspaceProjectContextMockFactory.Create();

            await provider.ReleaseProjectContextAsync(projectContext);

            Assert.Same(projectContext, result);
        }