public void OnAfterOpenSolutionTest()
        {
            IServiceProvider serviceProvider = this.PrepareServiceProvider();
            SolutionListener target = new SolutionListener(serviceProvider);

            bool eventFired = false;
            target.AfterSolutionOpened += (sender, args) => { eventFired = true; };
            int expected = VSConstants.S_OK;
            int actual = target.OnAfterOpenSolution(null, 0);
            Assert.AreEqual(expected, actual);
            Assert.IsTrue(eventFired, "Event was not fired");
        }