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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.Internal
{
using System.Data.Entity.Core.Objects.DataClasses;
using System.Data.Entity.Resources;
using System.Threading;
using Xunit;
public class InternalReferenceEntryTests
{
public class CurrentValue
{
[Fact]
public void InternalReferenceEntry_gets_current_value_from_entity_if_property_exists()
{
InternalReferenceEntry_gets_current_value_from_entity_if_property_exists_implementation(isDetached: false);
}
[Fact]
public void InternalReferenceEntry_gets_current_value_from_entity_even_when_detached_if_property_exists()
{
InternalReferenceEntry_gets_current_value_from_entity_if_property_exists_implementation(isDetached: true);
}
private void InternalReferenceEntry_gets_current_value_from_entity_if_property_exists_implementation(bool isDetached)
{
var relatedEntity = new FakeEntity();
var entity = new FakeWithProps
{
Reference = relatedEntity
};
var internalEntry = new InternalReferenceEntry(
MockHelper.CreateMockInternalEntityEntry(
entity, isDetached).Object, FakeWithProps.ReferenceMetadata);
var propValue = internalEntry.CurrentValue;
Assert.Same(relatedEntity, propValue);
}
[Fact]
public void InternalReferenceEntry_sets_current_value_onto_entity_if_property_exists()
{
InternalReferenceEntry_sets_current_value_onto_entity_if_property_exists_implementation(isDetached: false);
}
[Fact]
public void InternalReferenceEntry_sets_current_value_onto_entity_even_when_detached_if_property_exists()
{
InternalReferenceEntry_sets_current_value_onto_entity_if_property_exists_implementation(isDetached: true);
}
private void InternalReferenceEntry_sets_current_value_onto_entity_if_property_exists_implementation(bool isDetached)
{
var entity = new FakeWithProps
{
Reference = new FakeEntity()
};
var internalEntry = new InternalReferenceEntry(
MockHelper.CreateMockInternalEntityEntry(entity, isDetached).Object, FakeWithProps.ReferenceMetadata);
var relatedEntity = new FakeEntity();
internalEntry.CurrentValue = relatedEntity;
Assert.Same(relatedEntity, entity.Reference);
}
[Fact]
public void InternalReferenceEntry_gets_current_value_from_RelatedEnd_if_navigation_property_has_been_removed_from_entity()
{
InternalReferenceEntry_gets_current_value_from_RelatedEnd_if_navigation_property_has_been_removed_from_entity_implementation
(new FakeEntity());
}
[Fact]
public void
InternalReferenceEntry_gets_null_from_RelatedEnd_if_navigation_property_has_been_removed_from_entity_and_no_value_is_set()
{
InternalReferenceEntry_gets_current_value_from_RelatedEnd_if_navigation_property_has_been_removed_from_entity_implementation
(null);
}
private void
InternalReferenceEntry_gets_current_value_from_RelatedEnd_if_navigation_property_has_been_removed_from_entity_implementation
(FakeEntity relatedEntity)
{
var mockRelatedEnd = Core.Objects.DataClasses.MockHelper.CreateMockEntityReference(relatedEntity);
var internalEntry =
new InternalReferenceEntry(
MockHelper.CreateMockInternalEntityEntry(new FakeEntity(), mockRelatedEnd.Object).Object,
FakeWithProps.ReferenceMetadata);
var propValue = internalEntry.CurrentValue;
Assert.Same(relatedEntity, propValue);
}
[Fact]
public void InternalReferenceEntry_sets_current_value_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity()
{
InternalReferenceEntry_sets_current_value_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity_implementation
(new FakeEntity(), new FakeEntity());
}
[Fact]
public void InternalReferenceEntry_sets_null_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity()
{
InternalReferenceEntry_sets_current_value_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity_implementation
(new FakeEntity(), null);
}
[Fact]
public void
InternalReferenceEntry_sets_current_value_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity_when_current_value_is_null
()
{
InternalReferenceEntry_sets_current_value_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity_implementation
(null, new FakeEntity());
}
[Fact]
public void
InternalReferenceEntry_sets_null_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity_when_current_value_and_new_value_are_both_null
()
{
InternalReferenceEntry_sets_current_value_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity_implementation
(null, null);
}
[Fact]
public void
InternalReferenceEntry_does_not_set_anything_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity_when_current_value_and_new_value_are_same
()
{
var relatedEntity = new FakeEntity();
InternalReferenceEntry_sets_current_value_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity_implementation
(relatedEntity, relatedEntity);
}
/// <summary>
/// Validates that the call to set a value on an <see cref="EntityReference{TEntity}" /> is made as
/// expected without mocking EntityReference (since it is sealed). This could be dones with Moq
/// but it turned out easier and clearer this way.
/// </summary>
internal class FakeInternalReferenceEntry : InternalReferenceEntry
{
public FakeInternalReferenceEntry(InternalEntityEntry internalEntityEntry, NavigationEntryMetadata navigationMetadata)
: base(internalEntityEntry, navigationMetadata)
{
}
protected override void SetNavigationPropertyOnRelatedEnd(object value)
{
SetCount++;
ValueSet = value;
}
public object ValueSet { get; set; }
public int SetCount { get; set; }
}
private void
InternalReferenceEntry_sets_current_value_onto_RelatedEnd_if_navigation_property_has_been_removed_from_entity_implementation
(FakeEntity currentRelatedEntity, FakeEntity newRelatedEntity)
{
var mockRelatedEnd = Core.Objects.DataClasses.MockHelper.CreateMockEntityReference(currentRelatedEntity);
var internalEntry =
new FakeInternalReferenceEntry(
MockHelper.CreateMockInternalEntityEntry(new FakeEntity(), mockRelatedEnd.Object).Object,
FakeWithProps.ReferenceMetadata);
internalEntry.CurrentValue = newRelatedEntity;
Assert.Equal(1, internalEntry.SetCount);
Assert.Same(newRelatedEntity, internalEntry.ValueSet);
}
[Fact]
public void InternalReferenceEntry_throws_getting_current_value_from_detached_entity_if_navigation_property_has_been_removed()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalReferenceEntry(mockInternalEntry.Object, FakeWithProps.ReferenceMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("CurrentValue", "Reference", "FakeEntity"),
Assert.Throws<InvalidOperationException>(() => { var _ = internalEntry.CurrentValue; }).Message);
}
[Fact]
public void InternalReferenceEntry_throws_setting_current_value_from_detached_entity_if_navigation_property_has_been_removed()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalReferenceEntry(mockInternalEntry.Object, FakeWithProps.ReferenceMetadata);
Assert.Equal(
Strings.DbPropertyEntry_SettingEntityRefNotSupported("Reference", "FakeEntity", "Detached"),
Assert.Throws<NotSupportedException>(() => { internalEntry.CurrentValue = null; }).Message);
}
}
public class Load
{
[Fact]
public void InternalReferenceEntry_Load_throws_if_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalReferenceEntry(mockInternalEntry.Object, FakeWithProps.ReferenceMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("Load", "Reference", "FakeEntity"),
Assert.Throws<InvalidOperationException>(() => internalEntry.Load()).Message);
}
}
#if !NET40
public class LoadAsync
{
[Fact]
public void InternalReferenceEntry_LoadAsync_throws_if_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalReferenceEntry(mockInternalEntry.Object, FakeWithProps.ReferenceMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("LoadAsync", "Reference", "FakeEntity"),
Assert.Throws<InvalidOperationException>(
() =>
internalEntry.LoadAsync(CancellationToken.None).Wait()).Message);
}
}
#endif
public class IsLoaded
{
[Fact]
public void InternalReferenceEntry_IsLoaded_throws_if_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalReferenceEntry(mockInternalEntry.Object, FakeWithProps.ReferenceMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("IsLoaded", "Reference", "FakeEntity"),
Assert.Throws<InvalidOperationException>(() => { var _ = internalEntry.IsLoaded; }).Message);
}
}
public class Name
{
[Fact]
public void InternalReferenceEntry_Name_works_even_when_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalReferenceEntry(mockInternalEntry.Object, FakeWithProps.ReferenceMetadata);
Assert.Equal("Reference", internalEntry.Name);
}
}
public class Query
{
[Fact]
public void InternalReferenceEntry_Query_throws_if_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalReferenceEntry(mockInternalEntry.Object, FakeWithProps.ReferenceMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("Query", "Reference", "FakeEntity"),
Assert.Throws<InvalidOperationException>(() => internalEntry.Query()).Message);
}
}
}
}
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