CODEWITHSUNDEEP
c#async-awaitnunitintegration-testing
r3plica
r3plica

Reputation: 13397

c# nunit integration testing with exceptions

I have a test I created which looks like this:

[Test]
public async Task MemberCannotCreateConfirmedUser()
{
    var services = UserContext.GivenServices();
    await services.LoginAsync(new Claim("User", "Member"));
    Assert.That(await services.WhenCreateUserAsync("AAAB", "AAAB", "AAAB", "FIN", emailConfirmed: true), Throws.TypeOf<ArgumentException>());
}

And the code that actually throws the error looks like this:

var principal = _httpContext.User as ClaimsPrincipal;
var isAdmin = principal?.FindFirst("Administrator") != null;
if (!isAdmin)
{
    if (model.EmailConfirmed) throw new ArgumentException("Only an administrator can confirm a new user");
}

When I run the test, it fails and states:

System.ArgumentException : Only an administrator can confirm a new user

But surely that is what I am testing for. It should pass because it throws an ArgumentException error?

Upvotes: 2

Views: 611

Answers (1)

r3plica
r3plica

Reputation: 13397

Turns out I was just doing to assert incorrectly. Because the delegate is asynchronous, I need to do an async check. So replacing my Assert with this:

Assert.ThrowsAsync<ArgumentException>(async () => await services.WhenCreateUserAsync("AAAB", "AAAB", "AAAB", "FIN", emailConfirmed: true));

Fixed the issue

Upvotes: 2

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