/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (item == null)
{
return(null);
}
if (edmType == null)
{
throw Error.ArgumentNull("edmType");
}
if (!edmType.IsCollection() || !edmType.AsCollection().ElementType().IsEntity())
{
throw Error.Argument("edmType", SRResources.TypeMustBeEntityCollection, edmType.ToTraceString(), typeof(IEdmEntityType).Name);
}
IEdmEntityTypeReference elementType = edmType.AsCollection().ElementType().AsEntity();
ODataFeedWithEntries feed = item as ODataFeedWithEntries;
if (feed == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataFeedWithEntries).Name);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return(ReadFeed(feed, elementType, readContext));
}
public void ReadFeed_Calls_ReadInlineForEachEntry()
{
// Arrange
Mock <ODataDeserializerProvider> deserializerProvider = new Mock <ODataDeserializerProvider>();
Mock <ODataEdmTypeDeserializer> entityDeserializer = new Mock <ODataEdmTypeDeserializer>(_customerType, ODataPayloadKind.Entry);
ODataFeedDeserializer deserializer = new ODataFeedDeserializer(_customersType, deserializerProvider.Object);
ODataFeedWithEntries feedWrapper = new ODataFeedWithEntries(new ODataFeed());
feedWrapper.Entries.Add(new ODataEntryWithNavigationLinks(new ODataEntry {
Id = "1"
}));
feedWrapper.Entries.Add(new ODataEntryWithNavigationLinks(new ODataEntry {
Id = "2"
}));
ODataDeserializerContext readContext = new ODataDeserializerContext();
deserializerProvider.Setup(p => p.GetEdmTypeDeserializer(_customerType)).Returns(entityDeserializer.Object);
entityDeserializer.Setup(d => d.ReadInline(feedWrapper.Entries[0], readContext)).Returns("entry1").Verifiable();
entityDeserializer.Setup(d => d.ReadInline(feedWrapper.Entries[1], readContext)).Returns("entry2").Verifiable();
// Act
var result = deserializer.ReadFeed(feedWrapper, readContext);
// Assert
Assert.Equal(new[] { "entry1", "entry2" }, result.OfType <String>());
entityDeserializer.Verify();
}
public void ReadFeed_Throws_TypeCannotBeDeserialized()
{
Mock <ODataDeserializerProvider> deserializerProvider = new Mock <ODataDeserializerProvider>();
ODataFeedDeserializer deserializer = new ODataFeedDeserializer(_customersType, deserializerProvider.Object);
ODataFeedWithEntries feedWrapper = new ODataFeedWithEntries(new ODataFeed());
ODataDeserializerContext readContext = new ODataDeserializerContext();
deserializerProvider.Setup(p => p.GetEdmTypeDeserializer(_customerType)).Returns <ODataEdmTypeDeserializer>(null);
Assert.Throws <SerializationException>(
() => deserializer.ReadFeed(feedWrapper, readContext).GetEnumerator().MoveNext(),
"'System.Web.Http.OData.TestCommon.Models.Customer' cannot be deserialized using the ODataMediaTypeFormatter.");
}
public void ReadFeed_Throws_TypeCannotBeDeserialized()
{
Mock<ODataDeserializerProvider> deserializerProvider = new Mock<ODataDeserializerProvider>();
ODataFeedDeserializer deserializer = new ODataFeedDeserializer(deserializerProvider.Object);
ODataFeedWithEntries feedWrapper = new ODataFeedWithEntries(new ODataFeed());
ODataDeserializerContext readContext = new ODataDeserializerContext();
deserializerProvider.Setup(p => p.GetEdmTypeDeserializer(_customerType)).Returns<ODataEdmTypeDeserializer>(null);
Assert.Throws<SerializationException>(
() => deserializer.ReadFeed(feedWrapper, _customerType, readContext).GetEnumerator().MoveNext(),
"'System.Web.Http.OData.TestCommon.Models.Customer' cannot be deserialized using the ODataMediaTypeFormatter.");
}
/// <summary>
/// Deserializes the given <paramref name="feed"/> under the given <paramref name="readContext"/>.
/// </summary>
/// <param name="feed">The feed to deserialize.</param>
/// <param name="readContext">The deserializer context.</param>
/// <param name="elementType">The element type of the feed being read.</param>
/// <returns>The deserialized feed object.</returns>
public virtual IEnumerable ReadFeed(ODataFeedWithEntries feed, IEdmEntityTypeReference elementType, ODataDeserializerContext readContext)
{
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(elementType);
if (deserializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeDeserialized, elementType.FullName(), typeof(ODataMediaTypeFormatter).Name));
}
foreach (ODataEntryWithNavigationLinks entry in feed.Entries)
{
yield return deserializer.ReadInline(entry, elementType, readContext);
}
}
/// <summary>
/// Deserializes the given <paramref name="feed"/> under the given <paramref name="readContext"/>.
/// </summary>
/// <param name="feed">The feed to deserialize.</param>
/// <param name="readContext">The deserializer context.</param>
/// <param name="elementType">The element type of the feed being read.</param>
/// <returns>The deserialized feed object.</returns>
public virtual IEnumerable ReadFeed(ODataFeedWithEntries feed, IEdmEntityTypeReference elementType, ODataDeserializerContext readContext)
{
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(elementType);
if (deserializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeDeserialized, elementType.FullName(), typeof(ODataMediaTypeFormatter).Name));
}
foreach (ODataEntryWithNavigationLinks entry in feed.Entries)
{
yield return(deserializer.ReadInline(entry, elementType, readContext));
}
}
/// <summary>
/// Deserializes the navigation property from <paramref name="navigationLinkWrapper"/> into <paramref name="entityResource"/>.
/// </summary>
/// <param name="entityResource">The object into which the navigation property should be read.</param>
/// <param name="navigationLinkWrapper">The navigation link.</param>
/// <param name="entityType">The entity type of the entity resource.</param>
/// <param name="readContext">The deserializer context.</param>
public virtual void ApplyNavigationProperty(object entityResource, ODataNavigationLinkWithItems navigationLinkWrapper,
IEdmEntityTypeReference entityType, ODataDeserializerContext readContext)
{
if (navigationLinkWrapper == null)
{
throw Error.ArgumentNull("navigationLinkWrapper");
}
if (entityResource == null)
{
throw Error.ArgumentNull("entityResource");
}
IEdmNavigationProperty navigationProperty = entityType.FindProperty(navigationLinkWrapper.NavigationLink.Name) as IEdmNavigationProperty;
if (navigationProperty == null)
{
throw new ODataException(
Error.Format(SRResources.NavigationPropertyNotfound, navigationLinkWrapper.NavigationLink.Name, entityType.FullName()));
}
foreach (ODataItemBase childItem in navigationLinkWrapper.NestedItems)
{
ODataEntityReferenceLinkBase entityReferenceLink = childItem as ODataEntityReferenceLinkBase;
if (entityReferenceLink != null)
{
// ignore links.
continue;
}
ODataFeedWithEntries feed = childItem as ODataFeedWithEntries;
if (feed != null)
{
ApplyFeedInNavigationProperty(navigationProperty, entityResource, feed, readContext);
continue;
}
// It must be entry by now.
ODataEntryWithNavigationLinks entry = (ODataEntryWithNavigationLinks)childItem;
if (entry != null)
{
ApplyEntryInNavigationProperty(navigationProperty, entityResource, entry, readContext);
}
}
}
public void ReadInline_Calls_ReadFeed()
{
// Arrange
ODataDeserializerProvider deserializerProvider = new DefaultODataDeserializerProvider();
Mock <ODataFeedDeserializer> deserializer = new Mock <ODataFeedDeserializer>(_customersType, deserializerProvider);
ODataFeedWithEntries feedWrapper = new ODataFeedWithEntries(new ODataFeed());
ODataDeserializerContext readContext = new ODataDeserializerContext();
IEnumerable expectedResult = new object[0];
deserializer.CallBase = true;
deserializer.Setup(f => f.ReadFeed(feedWrapper, readContext)).Returns(expectedResult).Verifiable();
// Act
var result = deserializer.Object.ReadInline(feedWrapper, readContext);
// Assert
deserializer.Verify();
Assert.Same(expectedResult, result);
}
public void ReadInline_Calls_ReadFeed()
{
// Arrange
ODataDeserializerProvider deserializerProvider = new DefaultODataDeserializerProvider();
Mock<ODataFeedDeserializer> deserializer = new Mock<ODataFeedDeserializer>(deserializerProvider);
ODataFeedWithEntries feedWrapper = new ODataFeedWithEntries(new ODataFeed());
ODataDeserializerContext readContext = new ODataDeserializerContext();
IEnumerable expectedResult = new object[0];
deserializer.CallBase = true;
deserializer.Setup(f => f.ReadFeed(feedWrapper, _customerType, readContext)).Returns(expectedResult).Verifiable();
// Act
var result = deserializer.Object.ReadInline(feedWrapper, _customersType, readContext);
// Assert
deserializer.Verify();
Assert.Same(expectedResult, result);
}
/// <inheritdoc />
public sealed override object ReadInline(object item, ODataDeserializerContext readContext)
{
if (item == null)
{
return(null);
}
ODataFeedWithEntries feed = item as ODataFeedWithEntries;
if (feed == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataFeedWithEntries).Name);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return(ReadFeed(feed, readContext));
}
private void ApplyFeedInNavigationProperty(IEdmNavigationProperty navigationProperty, object entityResource, ODataFeedWithEntries feed, ODataDeserializerContext readContext)
{
Contract.Assert(navigationProperty != null && navigationProperty.PropertyKind == EdmPropertyKind.Navigation, "navigationProperty != null && navigationProperty.TypeKind == ResourceTypeKind.EntityType");
Contract.Assert(entityResource != null, "entityResource != null");
if (readContext.IsDeltaOfT)
{
string message = Error.Format(SRResources.CannotPatchNavigationProperties, navigationProperty.Name, navigationProperty.DeclaringEntityType().FullName());
throw new ODataException(message);
}
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(navigationProperty.Type);
if (deserializer == null)
{
throw new SerializationException(Error.Format(SRResources.TypeCannotBeDeserialized, navigationProperty.Type.FullName(), typeof(ODataMediaTypeFormatter)));
}
object value = deserializer.ReadInline(feed, navigationProperty.Type, readContext);
DeserializationHelpers.SetCollectionProperty(entityResource, navigationProperty, value);
}
/// <summary>
/// Reads an ODataFeed or an ODataItem from the reader.
/// </summary>
/// <param name="reader">The OData reader to read from.</param>
/// <returns>The read feed or entry.</returns>
public static ODataItemBase ReadEntryOrFeed(ODataReader reader)
{
if (reader == null)
{
throw Error.ArgumentNull("odataReader");
}
ODataItemBase topLevelItem = null;
Stack <ODataItemBase> itemsStack = new Stack <ODataItemBase>();
while (reader.Read())
{
switch (reader.State)
{
case ODataReaderState.EntryStart:
ODataEntry entry = (ODataEntry)reader.Item;
ODataEntryWithNavigationLinks entryWrapper = null;
if (entry != null)
{
entryWrapper = new ODataEntryWithNavigationLinks(entry);
}
if (itemsStack.Count == 0)
{
Contract.Assert(entry != null, "The top-level entry can never be null.");
topLevelItem = entryWrapper;
}
else
{
ODataItemBase parentItem = itemsStack.Peek();
ODataFeedWithEntries parentFeed = parentItem as ODataFeedWithEntries;
if (parentFeed != null)
{
parentFeed.Entries.Add(entryWrapper);
}
else
{
ODataNavigationLinkWithItems parentNavigationLink = (ODataNavigationLinkWithItems)parentItem;
Contract.Assert(parentNavigationLink.NavigationLink.IsCollection == false, "Only singleton navigation properties can contain entry as their child.");
Contract.Assert(parentNavigationLink.NestedItems.Count == 0, "Each navigation property can contain only one entry as its direct child.");
parentNavigationLink.NestedItems.Add(entryWrapper);
}
}
itemsStack.Push(entryWrapper);
break;
case ODataReaderState.EntryEnd:
Contract.Assert(itemsStack.Count > 0 && (reader.Item == null || itemsStack.Peek().Item == reader.Item), "The entry which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.NavigationLinkStart:
ODataNavigationLink navigationLink = (ODataNavigationLink)reader.Item;
Contract.Assert(navigationLink != null, "Navigation link should never be null.");
ODataNavigationLinkWithItems navigationLinkWrapper = new ODataNavigationLinkWithItems(navigationLink);
Contract.Assert(itemsStack.Count > 0, "Navigation link can't appear as top-level item.");
{
ODataEntryWithNavigationLinks parentEntry = (ODataEntryWithNavigationLinks)itemsStack.Peek();
parentEntry.NavigationLinks.Add(navigationLinkWrapper);
}
itemsStack.Push(navigationLinkWrapper);
break;
case ODataReaderState.NavigationLinkEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek().Item == reader.Item, "The navigation link which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.FeedStart:
ODataFeed feed = (ODataFeed)reader.Item;
Contract.Assert(feed != null, "Feed should never be null.");
ODataFeedWithEntries feedWrapper = new ODataFeedWithEntries(feed);
if (itemsStack.Count > 0)
{
ODataNavigationLinkWithItems parentNavigationLink = (ODataNavigationLinkWithItems)itemsStack.Peek();
Contract.Assert(parentNavigationLink != null, "this has to be an inner feed. inner feeds always have a navigation link.");
Contract.Assert(parentNavigationLink.NavigationLink.IsCollection == true, "Only collection navigation properties can contain feed as their child.");
parentNavigationLink.NestedItems.Add(feedWrapper);
}
else
{
topLevelItem = feedWrapper;
}
itemsStack.Push(feedWrapper);
break;
case ODataReaderState.FeedEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek().Item == reader.Item, "The feed which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.EntityReferenceLink:
ODataEntityReferenceLink entityReferenceLink = (ODataEntityReferenceLink)reader.Item;
Contract.Assert(entityReferenceLink != null, "Entity reference link should never be null.");
ODataEntityReferenceLinkBase entityReferenceLinkWrapper = new ODataEntityReferenceLinkBase(entityReferenceLink);
Contract.Assert(itemsStack.Count > 0, "Entity reference link should never be reported as top-level item.");
{
ODataNavigationLinkWithItems parentNavigationLink = (ODataNavigationLinkWithItems)itemsStack.Peek();
parentNavigationLink.NestedItems.Add(entityReferenceLinkWrapper);
}
break;
default:
Contract.Assert(false, "We should never get here, it means the ODataReader reported a wrong state.");
break;
}
}
Contract.Assert(reader.State == ODataReaderState.Completed, "We should have consumed all of the input by now.");
Contract.Assert(topLevelItem != null, "A top level entry or feed should have been read by now.");
return(topLevelItem);
}
private void ApplyFeedInNavigationProperty(IEdmNavigationProperty navigationProperty, object entityResource, ODataFeedWithEntries feed, ODataDeserializerContext readContext)
{
Contract.Assert(navigationProperty != null && navigationProperty.PropertyKind == EdmPropertyKind.Navigation, "navigationProperty != null && navigationProperty.TypeKind == ResourceTypeKind.EntityType");
Contract.Assert(entityResource != null, "entityResource != null");
if (readContext.IsDeltaOfT)
{
string message = Error.Format(SRResources.CannotPatchNavigationProperties, navigationProperty.Name, navigationProperty.DeclaringEntityType().FullName());
throw new ODataException(message);
}
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(navigationProperty.Type);
if (deserializer == null)
{
throw new SerializationException(Error.Format(SRResources.TypeCannotBeDeserialized, navigationProperty.Type.FullName(), typeof(ODataMediaTypeFormatter)));
}
object value = deserializer.ReadInline(feed, navigationProperty.Type, readContext);
DeserializationHelpers.SetCollectionProperty(entityResource, navigationProperty, value);
}
/// <summary>
/// Reads an ODataFeed or an ODataItem from the reader.
/// </summary>
/// <param name="reader">The OData reader to read from.</param>
/// <returns>The read feed or entry.</returns>
public static ODataItemBase ReadEntryOrFeed(ODataReader reader)
{
if (reader == null)
{
throw Error.ArgumentNull("odataReader");
}
ODataItemBase topLevelItem = null;
Stack<ODataItemBase> itemsStack = new Stack<ODataItemBase>();
while (reader.Read())
{
switch (reader.State)
{
case ODataReaderState.EntryStart:
ODataEntry entry = (ODataEntry)reader.Item;
ODataEntryWithNavigationLinks entryWrapper = null;
if (entry != null)
{
entryWrapper = new ODataEntryWithNavigationLinks(entry);
}
if (itemsStack.Count == 0)
{
Contract.Assert(entry != null, "The top-level entry can never be null.");
topLevelItem = entryWrapper;
}
else
{
ODataItemBase parentItem = itemsStack.Peek();
ODataFeedWithEntries parentFeed = parentItem as ODataFeedWithEntries;
if (parentFeed != null)
{
parentFeed.Entries.Add(entryWrapper);
}
else
{
ODataNavigationLinkWithItems parentNavigationLink = (ODataNavigationLinkWithItems)parentItem;
Contract.Assert(parentNavigationLink.NavigationLink.IsCollection == false, "Only singleton navigation properties can contain entry as their child.");
Contract.Assert(parentNavigationLink.NestedItems.Count == 0, "Each navigation property can contain only one entry as its direct child.");
parentNavigationLink.NestedItems.Add(entryWrapper);
}
}
itemsStack.Push(entryWrapper);
break;
case ODataReaderState.EntryEnd:
Contract.Assert(itemsStack.Count > 0 && (reader.Item == null || itemsStack.Peek().Item == reader.Item), "The entry which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.NavigationLinkStart:
ODataNavigationLink navigationLink = (ODataNavigationLink)reader.Item;
Contract.Assert(navigationLink != null, "Navigation link should never be null.");
ODataNavigationLinkWithItems navigationLinkWrapper = new ODataNavigationLinkWithItems(navigationLink);
Contract.Assert(itemsStack.Count > 0, "Navigation link can't appear as top-level item.");
{
ODataEntryWithNavigationLinks parentEntry = (ODataEntryWithNavigationLinks)itemsStack.Peek();
parentEntry.NavigationLinks.Add(navigationLinkWrapper);
}
itemsStack.Push(navigationLinkWrapper);
break;
case ODataReaderState.NavigationLinkEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek().Item == reader.Item, "The navigation link which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.FeedStart:
ODataFeed feed = (ODataFeed)reader.Item;
Contract.Assert(feed != null, "Feed should never be null.");
ODataFeedWithEntries feedWrapper = new ODataFeedWithEntries(feed);
if (itemsStack.Count > 0)
{
ODataNavigationLinkWithItems parentNavigationLink = (ODataNavigationLinkWithItems)itemsStack.Peek();
Contract.Assert(parentNavigationLink != null, "this has to be an inner feed. inner feeds always have a navigation link.");
Contract.Assert(parentNavigationLink.NavigationLink.IsCollection == true, "Only collection navigation properties can contain feed as their child.");
parentNavigationLink.NestedItems.Add(feedWrapper);
}
else
{
topLevelItem = feedWrapper;
}
itemsStack.Push(feedWrapper);
break;
case ODataReaderState.FeedEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek().Item == reader.Item, "The feed which is ending should be on the top of the items stack.");
itemsStack.Pop();
break;
case ODataReaderState.EntityReferenceLink:
ODataEntityReferenceLink entityReferenceLink = (ODataEntityReferenceLink)reader.Item;
Contract.Assert(entityReferenceLink != null, "Entity reference link should never be null.");
ODataEntityReferenceLinkBase entityReferenceLinkWrapper = new ODataEntityReferenceLinkBase(entityReferenceLink);
Contract.Assert(itemsStack.Count > 0, "Entity reference link should never be reported as top-level item.");
{
ODataNavigationLinkWithItems parentNavigationLink = (ODataNavigationLinkWithItems)itemsStack.Peek();
parentNavigationLink.NestedItems.Add(entityReferenceLinkWrapper);
}
break;
default:
Contract.Assert(false, "We should never get here, it means the ODataReader reported a wrong state.");
break;
}
}
Contract.Assert(reader.State == ODataReaderState.Completed, "We should have consumed all of the input by now.");
Contract.Assert(topLevelItem != null, "A top level entry or feed should have been read by now.");
return topLevelItem;
}
public void ReadFeed_Calls_ReadInlineForEachEntry()
{
// Arrange
Mock<ODataDeserializerProvider> deserializerProvider = new Mock<ODataDeserializerProvider>();
Mock<ODataEdmTypeDeserializer> entityDeserializer = new Mock<ODataEdmTypeDeserializer>(_customerType, ODataPayloadKind.Entry);
ODataFeedDeserializer deserializer = new ODataFeedDeserializer(_customersType, deserializerProvider.Object);
ODataFeedWithEntries feedWrapper = new ODataFeedWithEntries(new ODataFeed());
feedWrapper.Entries.Add(new ODataEntryWithNavigationLinks(new ODataEntry { Id = "1" }));
feedWrapper.Entries.Add(new ODataEntryWithNavigationLinks(new ODataEntry { Id = "2" }));
ODataDeserializerContext readContext = new ODataDeserializerContext();
deserializerProvider.Setup(p => p.GetEdmTypeDeserializer(_customerType)).Returns(entityDeserializer.Object);
entityDeserializer.Setup(d => d.ReadInline(feedWrapper.Entries[0], readContext)).Returns("entry1").Verifiable();
entityDeserializer.Setup(d => d.ReadInline(feedWrapper.Entries[1], readContext)).Returns("entry2").Verifiable();
// Act
var result = deserializer.ReadFeed(feedWrapper, readContext);
// Assert
Assert.Equal(new[] { "entry1", "entry2" }, result.OfType<String>());
entityDeserializer.Verify();
}
public void ApplyNavigationProperty_UsesThePropertyAlias_ForFeed()
{
// Arrange
CustomersModelWithInheritance model = new CustomersModelWithInheritance();
model.Model.SetAnnotationValue(model.Customer, new ClrTypeAnnotation(typeof(Customer)));
model.Model.SetAnnotationValue(model.Order, new ClrTypeAnnotation(typeof(Order)));
model.Model.SetAnnotationValue(
model.Customer.FindProperty("Orders"),
new ClrPropertyInfoAnnotation(typeof(Customer).GetProperty("AliasedOrders")));
ODataFeedWithEntries feedWrapper = new ODataFeedWithEntries(new ODataFeed());
feedWrapper.Entries.Add(new ODataEntryWithNavigationLinks(
new ODataEntry { Properties = new[] { new ODataProperty { Name = "ID", Value = 42 } } }));
Customer customer = new Customer();
ODataNavigationLinkWithItems navLink =
new ODataNavigationLinkWithItems(new ODataNavigationLink { Name = "Orders" });
navLink.NestedItems.Add(feedWrapper);
ODataDeserializerContext context = new ODataDeserializerContext { Model = model.Model };
// Act
new ODataEntityDeserializer(_deserializerProvider)
.ApplyNavigationProperty(customer, navLink, model.Customer.AsReference(), context);
// Assert
Assert.Equal(1, customer.AliasedOrders.Count());
Assert.Equal(42, customer.AliasedOrders[0].ID);
}