I am trying to port a test to NUnit3 and am getting a System.ArgumentException : 'async void' methods are not supported, please use 'async Task' instead.
[Test]
public void InvalidUsername()
{
...
var exception = Assert.Throws<HttpResponseException>(async () => await client.LoginAsync("[email protected]", testpassword));
exception.HttpResponseMessage.StatusCode.ShouldEqual(HttpStatusCode.BadRequest); // according to http://tools.ietf.org/html/rfc6749#section-5.2
...
}
Assert.Throws appears to take a TestDelegate, defined as:
public delegate void TestDelegate();
hence the ArgumentException. What is the best way to port this code?
I ended up writing a static function that mirrors what NUnit does. There was a whole conversation at https://github.com/nunit/nunit/issues/464 about this.
Then from my tests I can use it such as