How to mock HttpContext in ASP.NET Core [duplicate] - asp.net-mvc

Question

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Error trying to create Mock.Of<ControllerContext>() for ASP.Net Core 3.1 Unit Test
(2 answers)
Closed 1 year ago.
I'm trying to mock HttpContext to test my UsersController.
The UsersController inherit from
public abstract class ControllerBase
and HttpContext is a property of ControllerBase
public HttpContext HttpContext { get; }
and here is the method in the UsersContoller, which I want to test
public async Task<IActionResult> Register([FromBody] UserViewModel model)
{
_logger.LogDebug("Register new user");
var user = mapper.Map<User>(model);
user.Company.Active = false;
var result = await userManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
await userManager.AddToRoleAsync(user, Roles.NO_ACCESS);
//send confirmation email
string confirmationToken = userManager.GenerateEmailConfirmationTokenAsync(user).Result;
HostString hostString = HttpContext.Request.Host; //I need to mock httpcontext for this
this.mailSender.SendConfirmationMailAsync(user, hostString, confirmationToken);
return Ok();
}
else
{
_logger.LogInformation("User could not be registered Errors:");
result.Errors.ToList().ForEach(e => _logger.LogInformation(e.Description));
return BadRequest(result.Errors);
}
}
this is my BaseTestContoller, in which setup for tests is initialized
[SetUp]
public void Setup()
{
var dbContext = CreateDbContext();
CreateUserManager();
CreateMailSender(dbContext);
CreateMockImapper();
CreateMockIlogger();
usersController = new Mock<UsersController>(
userManagerMock.Object,
new CompanyService(dbContext),
mailSenderMock,
new Mock<IConfiguration>().Object,
iMapperMock.Object,
iLoggerFactoryMock.Object);
}
i've tried many options, but it wasn't successful therefor it would be nice if someone could help me.
Thanks in advance
UPDATE
usersController = new Mock<UsersController>(
userManagerMock.Object,
new CompanyService(dbContext),
mailSenderMock,
new Mock<IConfiguration>().Object,
iMapperMock.Object,
iLoggerFactoryMock.Object);
var conterllerContext = new ControllerContext() { HttpContext = new DefaultHttpContext() { } };
HostString host = new HostString("test.de");
conterllerContext.HttpContext.Request.Host = host;
usersController.Setup(c => c.HttpContext).Returns(conterllerContext.HttpContext);
Now i have a problem with setting up.
userController.setup returns this msg :
System.NotSupportedException : Unsupported expression: c => c.HttpContext
Non-overridable members (here: ControllerBase.get_HttpContext) may not be used in setup / verification expressions.

Answer 1

You can use ControllerContext to set the context to be DefaultHttpContext which you can modify to your needs.
var ctx = new ControllerContext() { HttpContext = new DefaultHttpContext()};
var tested = new MyCtrl();
tested.ControllerContext = ctx;

Answer 2

Can't you make a mock service for getting the host address (I am not really familiar with mock libraries).
Something like this:
class IHostService {
string GetHost();
}
public class HostService {
// create constructor with httpcontextaccessor
public string GetHost() {
return _httpContextAccessor.HttpContext.Request.Host;
}
}
public class MockHostService {
public string GetHost() {
return "test.de";
}
}
and in your mock class you can probably add this service just like you added mailSenderMock. And in your controller you use string host = _hostService.GetHost().