Symfony version(s) affected: 5.0

Description
There is a test called testThrowsException... but it does not expectException.

https://github.com/symfony/dependency-injection/blob/0f495ead513e83d01e4363995c1d6984e2a0f9ed/Tests/ContainerBuilderTest.php#L1100

Either the test is misnamed (should be rather testNoExceptionWhenAddServiceOnACompiledContainer) or it might be a false-positive and the exception check was forgotten (improbable).

Possible Solution
Rename the test or add the necessary check.

I assume this is a typo so I renamed the test in my PR.