Replacement for MatchType?

Question

The new NUnit Version 3.x does not support ExpectedExceptionAttribute any longer. There is an Assert.Throws<MyException>() instead. Probably a better logical concept. But I failed to find any replacement for the old good MatchType - is there any? MyException can be thrown with a number of parameters, in NUnit 2.x I could compare the exception message for the containment of a certain text fragment to know which parameter was used (and, certainly, I am not going to have dozens of exception classes instead of the just logical one). How can this be handled with NUnit 3.x? I was unable to find a hint.

With NUnit 2.x, I would do the following:

[Test]
[ExpectedException(ExpectedException=typeof(MyException),  ExpectedMessage="NON_EXISTENT_KEY", MatchType=MessageMatch.Contains)]
public void DeletePatient_PatientExists_Succeeds()
 {
    Person p    = new Person("P12345", "Testmann^Theo", new DateTime(1960, 11, 5), Gender.Male);
    MyDatabase.Insert(p);

    MyDatabase.Delete(p.Key);

    // Attemp to select from a database with a non-existent key.
    // MyDatabase throws an exception of type MyException with "NON_EXISTENT_KEY" within the message string,
    // so that I can distinguish it from cases where MyException is thrown with different message strings.
    Person p1   = MyDatabase.Select(p.Key);
 }

How can I do anything similar with NUnt 3.x?

Please consider what I mean: the means that NUnit provides for, are not sufficient to recognize the parameters with which the exception was thrown, so this is a different question.

Answer 1

As it looks, a possibility does exist (and even a sharper one than the aforementioned) to provide for this functionality, albeit not in NUnit 3 itself, but in FluentAssertions (http://www.fluentassertions.com/). There, you can do things like

 Action act = () => MyDatabase.Select(p.Key);
 act.ShouldThrow<MyException>().Where(ex => ex.Message.Contains("NON_EXISTENT_KEY"));

For all my practical purposes this solves the problem.