IDISP004 triggered in unit test that should throw

[lonix1]

Consider this standard code in a unit test:

Action act = () => _ = new SomethingDisposable("foo");          // IDISP004
act.Should().Throw<InvalidOperationException>();

That triggers IDISP004 - "Don't ignore created IDisposable".

Technically that is correct. But it is a major inconvenience to suppress this, because it's so common.

Is there a "nice" way to deal with this?

[JohanLarsson]

I'll special case it so we don't get tests full of noise.

Thanks for reporting!

[lonix1]

If that's the only way, then we should give it more thought to avoid unnecessary work! 😃 Because there are various cases where you find that problem, e.g.:

Action action = () => ...
Func<T> func = () => ...
Func<Task> func = () => ...

etc. Maybe there are more?