How to mock the request Object in Controller using NUnittest class

Kumar AU

Please let me know How do I Mock my "HttpRequestMessage" object so that when my code flows traverse from nUnitTest it should not having NULL value for "this,Request,CreateResponse()".

My Controller class:

public class EodController : ApiControllerBase
{
private readonly IEodManager eodManager;

public EodController(IEodManager, eodManager)
{

this.eodManager = eodManager;
}

/// Execution date
/// Returns  that contains a stream of JSON data.
[HttpGet]
[Route("")]
public async Task GetCheckAsync([Fromuri] DateTime executionDate)
{

try

{

int Status = await this.eodManager.GetStatus(executionDate);

will be always NULL value

var response = this.Request.CreateResponse(); // It failed Here "this.Request’ will be always NULL value
response.StatusCode = (Status == 1) ? HttpStatusCode.OK : (HttpStatusCode)207;

response. Content =
new PushStreamContent(
(stream, httpContext, transportContext) => this.eodManager.WriteToStream(stream, criteria, Status),

I have Tried following things from test Class, it did not work .

public async Task ShouldReturnOKStatus()
{

// Arrange
// Set up the mock

var EodManager, = new Mock();
DateTime executionDate = new Datelime(2023, 6, 27);

var data = "this will be JSON”;
var httpReguestMessage = new HttpRequestMessage();

httpRequestMessage Content= new StringContent(data, Encoding.UTF8, “application/json");

var command = new EodController(EodManager.Object); // Act

var response = await command.GetCheckAsync(executionDate);
Assent.AreEqual("System.Web.Http.Results.OkResult”, response.ToString());
}

5 Replies

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Prasad Raveendran3y ago
I would request you to explore AutoFixture

https://www.nuget.org/packages/autofixture/

this would help you to set mock data
Kumar AU3y ago
Hi Deepak, Can you please also let me know how do I mock the below line - which is also avaialble in same controler

int Status = await this.eodManager.GetStatus(executionDate);

Please sugest me - I tried below code , but its errored in - Task , basically GetStatus is method returns INT value - 1 or 0

Error message -Task is a Type which is not valid in given context

eodManager.Setup(x => x.GetStatus(executionDate)).Returns(Task);

also I tried eodManager.Setup(x => x.GetStatus(executionDate)).ReturnsAsync(1);

But I still don't see 1 value is being passed to my controller.

Basically below is the code for GetStatus method which I need to mock

public async Task GetStatus(string executionDate)
{
int jobCompleted = await this.eodManager.GetStatus(executionDate);
return jobCompleted;
}
Kumar AU3y ago
Thank you for your time and suggestion Rajkiran Swain, I appreciate your response
Kumar AU3y ago
Thank you so much Deepak, It worked !!

Now I understood I was missing this assignment - controller.Request = httpRequestMessage;

Deepak Rawat3y ago

HttpRequestMessage object and avoid having a null value for this.Request in your unit test, you can use a mocking framework like Moq. Here's an example of how you can modify your unit test to mock the HttpRequestMessage:

public async Task ShouldReturnOKStatus()
{
    // Arrange
    // Set up the mock
    var eodManager = new Mock();
    DateTime executionDate = new DateTime(2023, 6, 27);
    var data = "this will be JSON";
    
    var httpRequestMessage = new HttpRequestMessage();
    httpRequestMessage.Content = new StringContent(data, Encoding.UTF8, "application/json");
    
    var controller = new EodController(eodManager.Object);
    controller.Request = httpRequestMessage; // Assign the mock HttpRequestMessage to the controller's Request property
    
    // Act
    var response = await controller.GetCheckAsync(executionDate);
    
    // Assert
    Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
    // Additional assertions...
}