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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
namespace System.Data.Entity.ModelConfiguration.Conventions.UnitTests
{
using System.Data.Entity.Core.Metadata.Edm;
using System.Data.Entity.ModelConfiguration.Edm;
using Xunit;
public sealed class OneToManyCascadeDeleteConventionTests
{
[Fact]
public void Apply_should_not_add_action_when_self_reference()
{
var associationType = new AssociationType();
associationType.SourceEnd = new AssociationEndMember("S", new EntityType());
associationType.TargetEnd = new AssociationEndMember("T", associationType.SourceEnd.GetEntityType());
((IEdmConvention<AssociationType>)new OneToManyCascadeDeleteConvention())
.Apply(associationType, new EdmModel(DataSpace.CSpace));
Assert.Equal(OperationAction.None, associationType.SourceEnd.DeleteBehavior);
Assert.Equal(OperationAction.None, associationType.TargetEnd.DeleteBehavior);
}
[Fact]
public void Apply_should_not_add_action_when_has_existing_action()
{
var associationType = new AssociationType();
associationType.SourceEnd = new AssociationEndMember("S", new EntityType());
associationType.TargetEnd = new AssociationEndMember("T", new EntityType());
associationType.SourceEnd.DeleteBehavior = OperationAction.Restrict;
((IEdmConvention<AssociationType>)new OneToManyCascadeDeleteConvention())
.Apply(associationType, new EdmModel(DataSpace.CSpace));
Assert.Equal(OperationAction.Restrict, associationType.SourceEnd.DeleteBehavior);
Assert.Equal(OperationAction.None, associationType.TargetEnd.DeleteBehavior);
}
[Fact]
public void Apply_should_add_action_when_is_required_to_many()
{
var associationType = new AssociationType();
associationType.SourceEnd = new AssociationEndMember("S", new EntityType());
associationType.TargetEnd = new AssociationEndMember("T", new EntityType());
associationType.SourceEnd.RelationshipMultiplicity = RelationshipMultiplicity.One;
associationType.TargetEnd.RelationshipMultiplicity = RelationshipMultiplicity.Many;
((IEdmConvention<AssociationType>)new OneToManyCascadeDeleteConvention())
.Apply(associationType, new EdmModel(DataSpace.CSpace));
Assert.Equal(OperationAction.Cascade, associationType.SourceEnd.DeleteBehavior);
}
[Fact]
public void Apply_should_add_action_when_is_many_to_required()
{
var associationType = new AssociationType();
associationType.SourceEnd = new AssociationEndMember("S", new EntityType());
associationType.TargetEnd = new AssociationEndMember("T", new EntityType());
associationType.SourceEnd.RelationshipMultiplicity = RelationshipMultiplicity.Many;
associationType.TargetEnd.RelationshipMultiplicity = RelationshipMultiplicity.One;
((IEdmConvention<AssociationType>)new OneToManyCascadeDeleteConvention())
.Apply(associationType, new EdmModel(DataSpace.CSpace));
Assert.Equal(OperationAction.Cascade, associationType.TargetEnd.DeleteBehavior);
}
}
}
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