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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.Collections.Generic;
using System.Data.Entity.Core.Objects.DataClasses;
using System.Data.Entity.Resources;
using System.Threading;
using Xunit;
public class InternalCollectionEntryTests
{
public class CurrentValue
{
[Fact]
public void InternalCollectionEntry_gets_current_value_from_entity_if_property_exists()
{
InternalCollectionEntry_gets_current_value_from_entity_if_property_exists_implementation(isDetached: false);
}
[Fact]
public void InternalCollectionEntry_gets_current_value_from_entity_even_when_detached_if_property_exists()
{
InternalCollectionEntry_gets_current_value_from_entity_if_property_exists_implementation(isDetached: true);
}
private void InternalCollectionEntry_gets_current_value_from_entity_if_property_exists_implementation(bool isDetached)
{
var relatedCollection = new List<FakeEntity>();
var entity = new FakeWithProps
{
Collection = relatedCollection
};
var internalEntry = new InternalCollectionEntry(
MockHelper.CreateMockInternalEntityEntry(
entity, isDetached).Object, FakeWithProps.CollectionMetadata);
var propValue = internalEntry.CurrentValue;
Assert.Same(relatedCollection, propValue);
}
[Fact]
public void InternalCollectionEntry_sets_current_value_onto_entity_if_property_exists()
{
InternalCollectionEntry_sets_current_value_onto_entity_if_property_exists_implementation(isDetached: false);
}
[Fact]
public void InternalCollectionEntry_sets_current_value_onto_entity_even_when_detached_if_property_exists()
{
InternalCollectionEntry_sets_current_value_onto_entity_if_property_exists_implementation(isDetached: true);
}
private void InternalCollectionEntry_sets_current_value_onto_entity_if_property_exists_implementation(bool isDetached)
{
var entity = new FakeWithProps
{
Collection = new List<FakeEntity>()
};
var internalEntry = new InternalCollectionEntry(
MockHelper.CreateMockInternalEntityEntry(
entity, isDetached).Object, FakeWithProps.CollectionMetadata);
var relatedCollection = new List<FakeEntity>();
internalEntry.CurrentValue = relatedCollection;
Assert.Same(relatedCollection, entity.Collection);
}
[Fact]
public void
InternalCollectionEntry_gets_current_value_that_is_the_RelatedEnd_if_navigation_property_has_been_removed_from_entity()
{
var relatedCollection = new EntityCollection<FakeEntity>();
var internalEntry =
new InternalCollectionEntry(
MockHelper.CreateMockInternalEntityEntry(new FakeEntity(), entityCollection: relatedCollection).Object,
FakeWithProps.CollectionMetadata);
var propValue = internalEntry.CurrentValue;
Assert.Same(relatedCollection, propValue);
}
[Fact]
public void
InternalCollectionEntry_does_nothing_if_attempting_to_set_the_actual_EntityCollection_as_a_current_value_when_navigation_property_has_been_removed_from_entity
()
{
var relatedCollection = new EntityCollection<FakeEntity>();
var internalEntry =
new InternalCollectionEntry(
MockHelper.CreateMockInternalEntityEntry(new FakeEntity(), entityCollection: relatedCollection).Object,
FakeWithProps.CollectionMetadata);
internalEntry.CurrentValue = relatedCollection; // Test that it doesn't throw
}
[Fact]
public void
InternalCollectionEntry_throws_when_attempting_to_set_a_new_collection_when_navigation_property_has_been_removed_from_entity
()
{
var internalEntry =
new InternalCollectionEntry(
MockHelper.CreateMockInternalEntityEntry(new FakeEntity(), entityCollection: new EntityCollection<FakeEntity>()).
Object, FakeWithProps.CollectionMetadata);
Assert.Equal(
Strings.DbCollectionEntry_CannotSetCollectionProp("Collection", typeof(FakeEntity).ToString()),
Assert.Throws<NotSupportedException>(() => internalEntry.CurrentValue = new List<FakeEntity>()).Message);
}
[Fact]
public void InternalCollectionEntry_throws_getting_current_value_from_detached_entity_if_navigation_property_has_been_removed()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalCollectionEntry(mockInternalEntry.Object, FakeWithProps.CollectionMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("CurrentValue", "Collection", "FakeEntity"),
Assert.Throws<InvalidOperationException>(() => { var _ = internalEntry.CurrentValue; }).Message);
}
[Fact]
public void InternalCollectionEntry_throws_setting_current_value_from_detached_entity_if_navigation_property_has_been_removed()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalCollectionEntry(mockInternalEntry.Object, FakeWithProps.CollectionMetadata);
Assert.Equal(
Strings.DbCollectionEntry_CannotSetCollectionProp("Collection", typeof(FakeEntity).ToString()),
Assert.Throws<NotSupportedException>(() => { internalEntry.CurrentValue = null; }).Message);
}
}
public class Load
{
[Fact]
public void InternalCollectionEntry_Load_throws_if_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalCollectionEntry(mockInternalEntry.Object, FakeWithProps.CollectionMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("Load", "Collection", "FakeEntity"),
Assert.Throws<InvalidOperationException>(() => internalEntry.Load()).Message);
}
}
#if !NET40
public class LoadAsync
{
[Fact]
public void InternalCollectionEntry_LoadAsync_throws_if_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalCollectionEntry(mockInternalEntry.Object, FakeWithProps.CollectionMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("LoadAsync", "Collection", "FakeEntity"),
Assert.Throws<InvalidOperationException>(
() =>
internalEntry.LoadAsync(CancellationToken.None)).Message);
}
}
#endif
public class IsLoaded
{
[Fact]
public void InternalCollectionEntry_IsLoaded_throws_if_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalCollectionEntry(mockInternalEntry.Object, FakeWithProps.CollectionMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("IsLoaded", "Collection", "FakeEntity"),
Assert.Throws<InvalidOperationException>(() => { var _ = internalEntry.IsLoaded; }).Message);
}
}
public class Name
{
[Fact]
public void InternalCollectionEntry_Name_works_even_when_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalCollectionEntry(mockInternalEntry.Object, FakeWithProps.CollectionMetadata);
Assert.Equal("Collection", internalEntry.Name);
}
}
public class Query
{
[Fact]
public void InternalCollectionEntry_Query_throws_if_used_with_Detached_entity()
{
var mockInternalEntry = MockHelper.CreateMockInternalEntityEntry(
new FakeEntity(), isDetached: true);
var internalEntry = new InternalCollectionEntry(mockInternalEntry.Object, FakeWithProps.CollectionMetadata);
Assert.Equal(
Strings.DbPropertyEntry_NotSupportedForDetached("Query", "Collection", "FakeEntity"),
Assert.Throws<InvalidOperationException>(() => internalEntry.Query()).Message);
}
}
}
}
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