public void Discover_returns_configuration_when_required_to_optional()
{
var modelBuilder = new DbModelBuilder();
modelBuilder.Entity <Entity1>().HasRequired(e => e.Entity2).WithOptional(e => e.Entity1);
modelBuilder.Entity <Entity1>().Ignore(e => e.Entity2s);
modelBuilder.Entity <Entity2>().Ignore(e => e.Entity1s);
var model = modelBuilder.Build(new DbProviderInfo("System.Data.SqlClient", "2012"));
var entityType = model.ConceptualModel.EntityTypes.First(e => e.Name == "Entity1");
var navigationProperty = entityType.NavigationProperties.First(p => p.Name == "Entity2");
bool isDefault;
var configuration = MultiplicityDiscoverer.Discover(navigationProperty, out isDefault);
Assert.False(isDefault);
Assert.NotNull(configuration);
Assert.Same(entityType, configuration.LeftEntityType);
Assert.Same(navigationProperty, configuration.LeftNavigationProperty);
Assert.Equal(
RelationshipMultiplicity.ZeroOrOne,
configuration.LeftNavigationProperty.FromEndMember.RelationshipMultiplicity);
Assert.Equal(
RelationshipMultiplicity.One,
configuration.RightNavigationProperty.FromEndMember.RelationshipMultiplicity);
}
public IFluentConfiguration GetMultiplicityConfiguration(
NavigationProperty navigationProperty,
out bool isDefault)
{
return(MultiplicityDiscoverer.Discover(navigationProperty, out isDefault));
}