public void CreateStartupTest()
{
Assert.Null(StartupLoader.CreateStartup(null));
Assert.NotNull(StartupLoader.CreateStartup(typeof(EmptyStartup)));
Assert.NotNull(StartupLoader.CreateStartup(typeof(CreateStartupTestStartup1)));
Assert.Throws <InvalidOperationException>(() => StartupLoader.CreateStartup(typeof(CreateStartupTestStartup2)));
Assert.Throws <InvalidOperationException>(() => StartupLoader.CreateStartup(typeof(CreateStartupTestStartup3)));
Assert.Throws <InvalidOperationException>(() => StartupLoader.CreateStartup(typeof(CreateStartupTestStartup4)));
}