public static void ValidateInvoiceArticleDefaultModel(MetadataModel model)
{
Assert.Equal(8, model.Entities.Count());
Assert.Contains(model.Entities, p => p.Name == "Invoice");
Assert.Contains(model.Entities, p => p.Name == "Receipt");
Assert.Contains(model.Entities, p => p.Name == "ReceiptDetail");
Assert.Contains(model.Entities, p => p.Name == "Article");
Assert.Contains(model.Entities, p => p.Name == "ArticleName");
Assert.Contains(model.Entities, p => p.Name == "ArticleSettings");
Assert.Contains(model.Entities, p => p.Name == "Contact");
Assert.Contains(model.Entities, p => p.Name == "Country");
Assert.Equal(5, model.GetEntityMetadata <Article>().GetProperties().Count());
Assert.Contains(model.GetEntityMetadata <Article>().GetProperties(), p => p.Name == "Id");
Assert.Contains(model.GetEntityMetadata <Article>().GetProperties(), p => p.Name == "ArticleDescription");
Assert.Contains(model.GetEntityMetadata <Article>().GetProperties(), p => p.Name == "ArticleNumber");
Assert.Contains(model.GetEntityMetadata <Article>().GetProperties(), p => p.Name == "Price");
Assert.Contains(model.GetEntityMetadata <Article>().GetProperties(), p => p.Name == "SupplierId");
Assert.Equal(3, model.GetEntityMetadata <Article>().GetNavigations().Count());
Assert.Contains(model.GetEntityMetadata <Article>().GetNavigations(), p => p.Name == "ArticleSettings");
Assert.Contains(model.GetEntityMetadata <Article>().GetNavigations(), p => p.Name == "Names");
Assert.Contains(model.GetEntityMetadata <Article>().GetNavigations(), p => p.Name == "Supplier");
var settings = model.GetEntityMetadata <Article>().GetNavigations().First(p => p.Name == "ArticleSettings");
var names = model.GetEntityMetadata <Article>().GetNavigations().First(p => p.Name == "Names");
var supplier = model.GetEntityMetadata <Article>().GetNavigations().First(p => p.Name == "Supplier");
Assert.Equal(NavigationPropertyMultiplicity.ZeroOrOne, settings.Multiplicity);
Assert.Equal(NavigationPropertyMultiplicity.One, settings.TargetMultiplicity);
Assert.Equal(NavigationPropertyMultiplicity.Many, names.Multiplicity);
Assert.Equal(NavigationPropertyMultiplicity.One, names.TargetMultiplicity);
Assert.Equal("Article", names.TargetNavigationProperty.Name);
Assert.Equal(NavigationPropertyMultiplicity.One, supplier.Multiplicity);
Assert.Equal(NavigationPropertyMultiplicity.Many, supplier.TargetMultiplicity);
Assert.Equal("Articles", supplier.TargetNavigationProperty.Name);
var contact = model.GetEntityMetadata <Contact>();
var country = contact.GetNavigations().First(p => p.Name == "Country");
Assert.Equal(NavigationPropertyMultiplicity.One, country.Multiplicity);
Assert.Equal(NavigationPropertyMultiplicity.Many, country.TargetMultiplicity);
Assert.Null(country.TargetNavigationProperty);
var receiptDetail = model.GetEntityMetadata <ReceiptDetail>();
var article = receiptDetail.GetNavigations().First(p => p.Name == "Article");
Assert.Equal(NavigationPropertyMultiplicity.ZeroOrOne, article.Multiplicity);
Assert.Equal(NavigationPropertyMultiplicity.Many, article.TargetMultiplicity);
Assert.Null(article.TargetNavigationProperty);
}