False positives in try-catch blocks with Asserts revealed when using NUnit 3.10.0+

[NightOwl888]

Some of the test asserts are structured in a way that makes them potentially catch any exception that NUnit throws to implement its behavior. For example:

try
{
    // Test condition (supposed to throw)
    Assert.Fail("Did not throw");
}
catch (Exception)
{
    // ok
}

We were getting some false positives in NUnit 3.9.0 and prior, since in those cases the catch block would swallow the exception that NUnit throws as well as the intended exception. However, NUnit patched this behavior in 3.10.0 and now these tests are failing.

Upgrading to a newer version of NUnit requires us to fix these broken statements that are falling through. In addition, we should also change these to Assert.Throws or Assert.ThrowsAnyOf to make things easier to manage.

Fortunately, I have reviewed the issues and none of the problems affect end users, they were just problems with injecting mock settings during testing. This issue is closely related to #267.