public void RemovingContextsRemovesThoseContextsFromActivities()
{
var board = new ActivityBoard();
ActivityContext context1 = board.AddNewContext("Context 1");
ActivityContext context2 = board.AddNewContext("Context 2");
board.AddSelectedContexts(context1, context2);
Activity activity = Activity.FluentNew("New Activity")
.AddToBoard(board);
activity.AddContexts(context2);
board.RemoveContext(context2);
Assert.That(activity.ContextGuids, Is.Empty);
}