public async Task WriteResponseMessage_APIsShouldYieldSameResult()
{
var nestedWriterSettings = new ODataMessageWriterSettings
{
Version = ODataVersion.V4,
EnableMessageStreamDisposal = false
};
nestedWriterSettings.SetServiceDocumentUri(new Uri(ServiceUri));
var customerResponse = new ODataResource
{
TypeName = "NS.Customer",
Properties = new List <ODataProperty>
{
new ODataProperty
{
Name = "Id",
Value = 1,
SerializationInfo = new ODataPropertySerializationInfo {
PropertyKind = ODataPropertyKind.Key
}
},
new ODataProperty {
Name = "Name", Value = "Customer 1"
}
}
};
IODataResponseMessage asyncResponseMessage = new InMemoryMessage {
StatusCode = 200, Stream = this.asyncStream
};
using (var messageWriter = new ODataMessageWriter(asyncResponseMessage, writerSettings))
{
var asynchronousWriter = await messageWriter.CreateODataAsynchronousWriterAsync();
var responseMessage = await asynchronousWriter.CreateResponseMessageAsync();
responseMessage.StatusCode = 200;
using (var nestedMessageWriter = new ODataMessageWriter(responseMessage, nestedWriterSettings, this.model))
{
var writer = await nestedMessageWriter.CreateODataResourceWriterAsync(this.customerEntitySet, this.customerEntityType);
await writer.WriteStartAsync(customerResponse);
await writer.WriteEndAsync();
await writer.FlushAsync();
}
await asynchronousWriter.FlushAsync();
}
this.asyncStream.Position = 0;
var asyncResult = await new StreamReader(this.asyncStream).ReadToEndAsync();
var syncResult = await TaskUtils.GetTaskForSynchronousOperation(() =>
{
IODataResponseMessage syncResponseMessage = new InMemoryMessage {
StatusCode = 200, Stream = this.syncStream
};
using (var messageWriter = new ODataMessageWriter(syncResponseMessage, writerSettings))
{
var asynchronousWriter = messageWriter.CreateODataAsynchronousWriter();
var responseMessage = asynchronousWriter.CreateResponseMessage();
responseMessage.StatusCode = 200;
using (var nestedMessageWriter = new ODataMessageWriter(responseMessage, nestedWriterSettings, this.model))
{
var writer = nestedMessageWriter.CreateODataResourceWriter(this.customerEntitySet, this.customerEntityType);
writer.WriteStart(customerResponse);
writer.WriteEnd();
writer.Flush();
}
asynchronousWriter.Flush();
}
this.syncStream.Position = 0;
return(new StreamReader(this.syncStream).ReadToEnd());
});
var expected = @"HTTP/1.1 200 OK
OData-Version: 4.0
Content-Type: application/json;odata.metadata=minimal;odata.streaming=true;IEEE754Compatible=false;charset=utf-8
{""@odata.context"":""http://tempuri.org/$metadata#Customers/$entity"",""Id"":1,""Name"":""Customer 1""}";
Assert.Equal(expected, asyncResult);
Assert.Equal(expected, syncResult);
}
public async Task WriteInStreamError_APIsShouldYieldSameResult()
{
var nestedWriterSettings = new ODataMessageWriterSettings
{
Version = ODataVersion.V4,
EnableMessageStreamDisposal = false
};
nestedWriterSettings.SetServiceDocumentUri(new Uri(ServiceUri));
var asyncException = await Assert.ThrowsAsync <ODataException>(async() =>
{
IODataResponseMessage asyncResponseMessage = new InMemoryMessage {
StatusCode = 200, Stream = this.asyncStream
};
using (var messageWriter = new ODataMessageWriter(asyncResponseMessage, writerSettings))
{
// Call to CreateODataAsynchronousWriterAsync triggers setting of output in-stream error listener
var asynchronousWriter = await messageWriter.CreateODataAsynchronousWriterAsync();
var responseMessage = await asynchronousWriter.CreateResponseMessageAsync();
responseMessage.StatusCode = 200;
// Next section added is to demonstrate that what was already written is flushed to the buffer before exception is thrown
using (var nestedMessageWriter = new ODataMessageWriter(responseMessage, nestedWriterSettings))
{
var writer = await nestedMessageWriter.CreateODataResourceWriterAsync();
}
await messageWriter.WriteErrorAsync(
new ODataError {
ErrorCode = "NRE", Message = "Object reference not set to an instance of an object."
},
/*includeDebugInformation*/ true);
}
});
this.asyncStream.Position = 0;
var asyncResult = await new StreamReader(this.asyncStream).ReadToEndAsync();
var syncException = await Assert.ThrowsAsync <ODataException>(
() => TaskUtils.GetTaskForSynchronousOperation(() =>
{
IODataResponseMessage syncResponseMessage = new InMemoryMessage {
StatusCode = 200, Stream = this.syncStream
};
using (var messageWriter = new ODataMessageWriter(syncResponseMessage, writerSettings))
{
// Call to CreateODataAsynchronousWriterAsync triggers setting of output in-stream error listener
var asynchronousWriter = messageWriter.CreateODataAsynchronousWriter();
var responseMessage = asynchronousWriter.CreateResponseMessage();
responseMessage.StatusCode = 200;
// Next section is added to demonstrate that what was already written is flushed to the buffer before exception is thrown
using (var nestedMessageWriter = new ODataMessageWriter(responseMessage, nestedWriterSettings))
{
var writer = nestedMessageWriter.CreateODataResourceWriter();
}
messageWriter.WriteError(
new ODataError {
ErrorCode = "NRE", Message = "Object reference not set to an instance of an object."
},
/*includeDebugInformation*/ true);
}
}));
this.syncStream.Position = 0;
var syncResult = await new StreamReader(this.syncStream).ReadToEndAsync();
var expected = @"HTTP/1.1 200 OK
OData-Version: 4.0
Content-Type: application/json;odata.metadata=minimal;odata.streaming=true;IEEE754Compatible=false;charset=utf-8
";
Assert.Equal(Strings.ODataAsyncWriter_CannotWriteInStreamErrorForAsync, asyncException.Message);
Assert.Equal(Strings.ODataAsyncWriter_CannotWriteInStreamErrorForAsync, syncException.Message);
Assert.Equal(expected, asyncResult);
Assert.Equal(expected, syncResult);
}