public void CreatesAndSetsCurrentApp()
        {
            var app = new MountainWeatherApp();

            Assert.That(Application.Current, Is.EqualTo(app));

            Assert.That(app.MainPage, Is.Not.Null);
            Assert.That(app.MainPage, Is.TypeOf <NavigationPage>());
        }
        public void CreatesAndSetsCurrentApp()
        {
            var app = new MountainWeatherApp();

            Assert.That(Application.Current, Is.EqualTo(app));

            Assert.That(app.MainPage, Is.Not.Null);
            Assert.That(app.MainPage, Is.TypeOf<NavigationPage>());
        }