how to mock HttpRequestData sung Moq for testing Azure Function Isolated .Net 8

### Description

For using Moq, I share with you how to implement this solution using Moq to test Azure Function Isolated .Net 8

```
public static HttpRequestData CreateMockHttpRequestData(string body, string? schema = null)
{
var functionContext = new Mock();
var requestData = new Mock(functionContext.Object);
var serviceCollection = new ServiceCollection();
serviceCollection.AddSingleton(Options.Create(new WorkerOptions { Serializer = new JsonObjectSerializer() }));

var serviceProvider = serviceCollection.BuildServiceProvider();
functionContext.Setup(context => context.InstanceServices).Returns(serviceProvider);

var bodyForHttpRequest = GetBodyForHttpRequest(body);
requestData.Setup(context => context.Body).Returns(bodyForHttpRequest);

var headersForHttpRequestData = new HttpHeadersCollection();
if (!string.IsNullOrWhiteSpace(schema))
{
headersForHttpRequestData.Add("Authorization", $"{schema} edd2545es.ez5ez5454e.ezdsdsds");
}

requestData.Setup(context => context.Headers).Returns(headersForHttpRequestData);

return requestData.Object;
}

private static MemoryStream GetBodyForHttpRequest(string body)
{
var byteArray = Encoding.UTF8.GetBytes(body);
var memoryStream = new MemoryStream(byteArray);
memoryStream.Flush();
memoryStream.Position = 0;

return memoryStream;
}

```

Start by reviewing the Moq example in the issue, including the FunctionContext, HttpRequestData, headers, and request-body helpers. The payload names no repository file or test; done means determining whether this Azure Functions isolated .NET 8 testing guidance is accurate and where it belongs.

Written by the indexing model from the issue text.