public void Creates_unique_foreign_key_using_dependent_PK_if_no_matching_FK_property_found()
{
var fk = new ForeignKeyConvention().FindOrCreateForeignKey(PrincipalType, DependentType, "SomeNav", "SomeInverse", isUnqiue: true);
Assert.Same(DependentType.GetKey().Properties.Single(), fk.Properties.Single());
Assert.Same(PrimaryKey, fk.ReferencedProperties.Single());
Assert.True(fk.IsUnique);
Assert.True(fk.IsRequired);
}
public void Creates_foreign_key_matching_principal_type_name_plus_PK_name()
{
var fkProperty = DependentType.AddProperty("PrincipalEntityPeEKaY", typeof(int));
var fk = new ForeignKeyConvention().FindOrCreateForeignKey(PrincipalType, DependentType, "SomeNav", "SomeInverse", isUnqiue: false);
Assert.Same(fkProperty, fk.Properties.Single());
Assert.Same(PrimaryKey, fk.ReferencedProperties.Single());
Assert.False(fk.IsUnique);
Assert.True(fk.IsRequired);
}
public void Creates_foreign_key_based_on_type_name_if_no_appropriate_property_is_found()
{
var fk = new ForeignKeyConvention().FindOrCreateForeignKey(PrincipalType, DependentType, null, null, isUnqiue: false);
Assert.Equal("PrincipalEntityId", fk.Properties.Single().Name);
Assert.Equal(typeof(int), fk.Properties.Single().PropertyType);
Assert.True(fk.Properties.Single().IsShadowProperty);
Assert.False(fk.Properties.Single().IsConcurrencyToken);
Assert.Same(PrimaryKey, fk.ReferencedProperties.Single());
Assert.False(fk.IsUnique);
Assert.True(fk.IsRequired);
}
public void Creates_foreign_key_using_given_property()
{
DependentType.AddProperty("SomeNavID", typeof(int));
DependentType.AddProperty("SomeNavPeEKaY", typeof(int));
DependentType.AddProperty("PrincipalEntityID", typeof(int));
DependentType.AddProperty("PrincipalEntityPeEKaY", typeof(int));
var fkProperty = DependentType.AddProperty("No!No!", typeof(int));
var fk = new ForeignKeyConvention().FindOrCreateForeignKey(
PrincipalType, DependentType, "SomeNav", "SomeInverse", new[] { new[] { fkProperty } }, isUnqiue: false);
Assert.Same(fkProperty, fk.Properties.Single());
Assert.Same(PrimaryKey, fk.ReferencedProperties.Single());
Assert.False(fk.IsUnique);
Assert.True(fk.IsRequired);
}
public void Does_not_match_existing_FK_if_FK_already_has_different_uniqueness()
{
var fkProperty = DependentType.AddProperty("SharedFk", typeof(int));
var fk = DependentType.AddForeignKey(PrincipalType.GetKey(), fkProperty);
fk.IsUnique = true;
var newFk = new ForeignKeyConvention().FindOrCreateForeignKey(
PrincipalType, DependentType, "SomeNav", "SomeInverse", new[] { new[] { fkProperty } }, isUnqiue: false);
Assert.NotSame(fk, newFk);
Assert.Same(fkProperty, newFk.Properties.Single());
Assert.Same(PrimaryKey, newFk.ReferencedProperties.Single());
Assert.False(newFk.IsUnique);
Assert.True(newFk.IsRequired);
}