public async Task TestDetailsViewModel()
{
IFeedService mockFeedService = new MockFeedService();
var mockCoreMethods = new Mock <IPageModelCoreMethods>();
DetailsPageModel pageModel = new DetailsPageModel(mockFeedService);
pageModel.CoreMethods = mockCoreMethods.Object;
pageModel.NewMessage = "new message";
pageModel.SendCommand.Execute(null);
Assert.IsTrue(pageModel.NewMessage == null);
var feeds = await mockFeedService.GetFeeds();
Assert.IsTrue(feeds.Count == 1);
}
