ODL7 throwing "The ODataMessageWriterSetting.ODataUri must be set when writing individual property" when ODataMessageWriterSetting.ODataUri is set.

[xuzhg]

Last issue with moving MS Graph to ODLv7.

Our TestComposibleFunctionReturningComplexType unit test which tries to write { value: "value1" } response for a GET ens/id/microsoft.graph.F8/P1 request using the attached CSDL fails with the below exception:

Microsoft.OData.ODataException occurred
  HResult=-2146233079
  Message=The ODataMessageWriterSetting.ODataUri must be set when writing individual property.
  Source=Microsoft.OData.Core
  StackTrace:
       at Microsoft.OData.ODataContextUriBuilder.ValidateResourcePath(ODataContextUrlInfo contextUrlInfo)
       at Microsoft.OData.ODataContextUriBuilder.BuildContextUri(ODataPayloadKind payloadKind, ODataContextUrlInfo contextInfo)
       at Microsoft.OData.JsonLight.ODataJsonLightSerializer.WriteContextUriProperty(ODataPayloadKind payloadKind, Func`1 contextUrlInfoGen, ODataContextUrlInfo parentContextUrlInfo, String propertyName)
       at Microsoft.OData.JsonLight.ODataJsonLightPropertySerializer.<>c__DisplayClass5_0.<WriteTopLevelProperty>b__0()
       at Microsoft.OData.JsonLight.ODataJsonLightSerializer.WriteTopLevelPayload(Action payloadWriterAction)
       at Microsoft.OData.JsonLight.ODataJsonLightPropertySerializer.WriteTopLevelPro c:\git\AD\AggregatorService\src\dev\UnitTests\Controller.UnitTest\Resources\Ops.csdl perty(ODataProperty property)
       at Microsoft.OData.JsonLight.ODataJsonLightOutputContext.WritePropertyImplementation(ODataProperty property)
       at Microsoft.OData.JsonLight.ODataJsonLightOutputContext.WriteProperty(ODataProperty property)
       at Microsoft.OData.ODataMessageWriter.<>c__DisplayClass55_0.<WriteProperty>b__0(ODataOutputContext context)
       at Microsoft.OData.ODataMessageWriter.WriteToOutput(ODataPayloadKind payloadKind, Action`1 writeAction)
       at Microsoft.OData.ODataMessageWriter.WriteProperty(ODataProperty property)
       at Microsoft.Online.AggregatorService.Controller.ODataResponseWriter.WriteResponse(RequestContext context, JObject jsonObject, ParsedRequestState state, Stream responseStream, Boolean disableStreamDisposal) in c:\git\AD\AggregatorService\src\dev\Controller\ODataResponseWriter.cs:line 339
  InnerException:

The ODataMessageWriterSetting.ODataUri is actually set:
writerSettings.ODataUri.BuildUri(ODataUrlKeyDelimiter.Parentheses).ToString() returns:
returns http://localgateway/beta/ens('id')/microsoft.graph.F8/P1

Assemblies affected

Which assemblies and versions are known to be affected e.g. OData .Net lib 7.3

Reproduce steps

If we set the path as "~/entityset/key/operation/property" as below:

http://localgateway/beta/ens('id')/microsoft.graph.F8/P1

 ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings
{
         PayloadBaseUri = new Uri("http://localhost"),
         Version = ODataVersion.V4,
         ODataUri = new ODataUri
         {
               Path = path, // Here
               ServiceRoot = new Uri("http://localhost")
         }
 };

It will throw exception when serialize the top level property.

Expected result

Pass.

Actual result

Throw exception.
What is actually happening.

Additional detail

Optional, details of the root cause if known. Delete this section if you have no additional details to add.

[mikepizzo]

Fixed by PR #1023