public void Can_set_entity_type()
{
var navigation = new Navigation(new Mock<ForeignKey>().Object, "TheBattle", pointsToPrincipal: true);
var entityType = new Mock<EntityType>().Object;
navigation.EntityType = entityType;
Assert.Same(entityType, navigation.EntityType);
Assert.Same(entityType, ((INavigation)navigation).EntityType);
}
public void Can_create_navigation()
{
var foreignKey = CreateForeignKey();
var navigation = new Navigation("Deception", foreignKey);
Assert.Same(foreignKey, navigation.ForeignKey);
Assert.Equal("Deception", navigation.Name);
Assert.Same(foreignKey.DeclaringEntityType, navigation.DeclaringEntityType);
}
public void Can_create_navigation_to_collection_of_dependents()
{
var foreignKey = CreateForeignKey();
foreignKey.IsUnique = false;
var navigation = new Navigation("Deception", foreignKey, pointsToPrincipal: false);
Assert.Same(foreignKey, navigation.ForeignKey);
Assert.Equal("Deception", navigation.Name);
Assert.NotNull(navigation.EntityType);
Assert.False(navigation.PointsToPrincipal);
Assert.True(navigation.IsCollection());
}
private void CheckNavigation(Navigation value, Navigation otherNavigation)
{
if (value != null)
{
if (value.ForeignKey != this)
{
throw new InvalidOperationException(
Strings.NavigationForWrongForeignKey(value.Name, value.EntityType.DisplayName(), this, value.ForeignKey));
}
if (value == otherNavigation)
{
throw new InvalidOperationException(Strings.NavigationToSelfDuplicate(value.Name));
}
}
}
public void Can_create_navigation_to_collection_of_dependents()
{
var keyMock = new Mock<ForeignKey>();
keyMock.Setup(m => m.IsUnique).Returns(false);
var foreignKey = keyMock.Object;
var navigation = new Navigation(foreignKey, "Deception", pointsToPrincipal: false);
Assert.Same(foreignKey, navigation.ForeignKey);
Assert.Equal("Deception", navigation.Name);
Assert.Null(navigation.EntityType);
Assert.False(navigation.PointsToPrincipal);
Assert.True(navigation.IsCollection());
Assert.Same(foreignKey, ((INavigation)navigation).ForeignKey);
Assert.Null(((INavigation)navigation).EntityType);
}
public void Throws_setting_same_navigation_to_dependent_as_is_set_to_principal()
{
var foreignKey = CreateSelfRefFK();
var navigation = new Navigation("Deception", foreignKey, pointsToPrincipal: true);
Assert.Equal(
Strings.NavigationToSelfDuplicate("Deception"),
Assert.Throws<InvalidOperationException>(() => foreignKey.PrincipalToDependent = navigation).Message);
}
public void Throws_setting_navigation_to_dependent_on_wrong_FK()
{
var foreignKey1 = CreateOneToManyFK();
var foreignKey2 = CreateSelfRefFK();
var navigation = new Navigation("Deception", foreignKey1, pointsToPrincipal: false);
Assert.Equal(
Strings.NavigationForWrongForeignKey("Deception", "OneToManyPrincipal", foreignKey2, foreignKey1),
Assert.Throws<InvalidOperationException>(() => foreignKey2.PrincipalToDependent = navigation).Message);
}
public void Navigation_back_pointer_is_fixed_up_as_navigation_is_added_and_removed()
{
var entityType1 = new EntityType(typeof(Customer));
entityType1.SetKey(entityType1.AddProperty(Customer.IdProperty));
var entityType2 = new EntityType(typeof(Customer));
var navigation
= new Navigation(
new ForeignKey(
entityType1.GetKey(),
new[] { entityType1.AddProperty(Customer.IdProperty) }), "Nav", pointsToPrincipal: true);
entityType1.AddNavigation(navigation);
Assert.Same(entityType1, navigation.EntityType);
entityType2.AddNavigation(navigation);
Assert.Same(entityType2, navigation.EntityType);
Assert.Empty(entityType1.Navigations);
entityType2.RemoveNavigation(navigation);
Assert.Empty(entityType2.Navigations);
Assert.Null(navigation.EntityType);
}
public void Can_add_navigations()
{
var entityType = new EntityType(typeof(Order));
var navigation = new Navigation(new Mock<ForeignKey>().Object, "Milk", pointsToPrincipal: true);
entityType.AddNavigation(navigation);
Assert.Same(navigation, entityType.Navigations.Single());
Assert.Same(entityType, navigation.EntityType);
}