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Fix EdmStructuredObject default value getter #1949

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Fix EdmStructuredObject default value getter #1949

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8 changes: 8 additions & 0 deletions src/Microsoft.AspNet.OData.Shared/EdmStructuredObject.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -221,6 +221,14 @@ internal static object GetDefaultValue(IEdmTypeReference propertyType)
(isCollection && propertyType.AsCollection().ElementType().IsPrimitive()))
{
// primitive or primitive collection
if (clrType == typeof(string))
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Edm.Primitive (System.String) is a built-in Primitive type.

EdmStructuredObject is used for complex or entity instance, the type of them is structured type. So, I don't know why should we add "primitive type" into "structured type"?

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Hey, maybe the title is a bit misleading. It should be something like 'Fix EdmStructuredObject's properties default value getter'.
You are correct, but the EdmStructuredObject has properties, which can be primitives. So when you try to get a property from the EdmStructuredObject, if the property does not exist, a default value is returned. This PR aimed to fix how the default value for a property is obtained - fixing the GetDefaultValue method (which is used from TryGetPropertyValue). I don't know if this is the right place for the GetDefaultValue though.

{
return string.Empty;
}
else if (clrType.IsArray)
{
return Array.CreateInstance(clrType.GetElementType(), 0);
}
return Activator.CreateInstance(clrType);
}
else
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14 changes: 14 additions & 0 deletions test/UnitTest/Microsoft.AspNet.OData.Test.Shared/EdmStructuredObjectTest.cs
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Expand Up @@ -209,6 +209,10 @@ public static TheoryDataSet<IEdmTypeReference, object> GetDefaultValueTestData
{
IEdmTypeReference nonnullableDouble = EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Double, isNullable: false);
IEdmTypeReference nullableDouble = EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Double, isNullable: true);
IEdmTypeReference nonnullableString = EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.String, isNullable: false);
IEdmTypeReference nullableString = EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.String, isNullable: true);
IEdmTypeReference nonnullableBinary = EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Binary, isNullable: false);
IEdmTypeReference nullableBinary = EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Binary, isNullable: true);
IEdmTypeReference nullableEntity = new EdmEntityTypeReference(new EdmEntityType("NS", "Entity"), isNullable: true);
IEdmTypeReference nullableComplex = new EdmComplexTypeReference(new EdmComplexType("NS", "Complex"), isNullable: true);
EdmCollectionTypeReference entityCollection = new EdmCollectionTypeReference(new EdmCollectionType(nullableEntity));
Expand All @@ -223,10 +227,20 @@ public static TheoryDataSet<IEdmTypeReference, object> GetDefaultValueTestData
{ EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Date, isNullable: false), default(Date) },
{ EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.TimeOfDay, isNullable: true), null },
{ EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.TimeOfDay, isNullable: false), default(TimeOfDay) },
{ EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Duration, isNullable: true), null },
{ EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Duration, isNullable: false), default(TimeSpan) },
{ EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.String, isNullable: true), null },
{ EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.String, isNullable: false), String.Empty },
{ EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Binary, isNullable: true), null },
{ EdmCoreModel.Instance.GetPrimitive(EdmPrimitiveTypeKind.Binary, isNullable: false), new byte[0] },
{ new EdmComplexTypeReference(new EdmComplexType("NS", "Complex"), isNullable: true), null },
{ new EdmEntityTypeReference(new EdmEntityType("NS", "Entity"), isNullable: true), null },
{ new EdmCollectionTypeReference(new EdmCollectionType(nullableDouble)), new List<double?>() },
{ new EdmCollectionTypeReference(new EdmCollectionType(nonnullableDouble)), new List<double>() },
{ new EdmCollectionTypeReference(new EdmCollectionType(nullableString)), new List<string>() },
{ new EdmCollectionTypeReference(new EdmCollectionType(nonnullableString)), new List<string>() },
{ new EdmCollectionTypeReference(new EdmCollectionType(nullableBinary)), new List<byte[]>() },
{ new EdmCollectionTypeReference(new EdmCollectionType(nonnullableBinary)), new List<byte[]>() },
{ new EdmCollectionTypeReference(new EdmCollectionType(nullableEntity)), new EdmEntityObjectCollection(entityCollection) },
};
}
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