public void When_BuildSidebarContentViewModel_Returns_SidebarContentViewModel()
{
//Given
//When
var result = _postBuilder.BuildSidebarContentViewModel();
//Then
Assert.NotNull(result);
Assert.NotNull(result.LastCommentedPosts);
Assert.NotNull(result.LastPosts);
Assert.NotNull(result.TrendingPosts);
Assert.IsInstanceOf <SidebarContentViewModel>(result);
Assert.AreEqual(2, result.LastPosts.Count);
Assert.AreEqual(2, result.TrendingPosts.Count);
Assert.AreEqual(1, result.LastCommentedPosts.Count);
}