There’s no valid reason to test
is. The only plausible explanation for such a test is that you’re executing
code in a parent class conditionally based on the kind of child class
this is. But code that’s specific to a child class should be
in that child class, not in the parent.
Noncompliant Code Example
public class JunkFood
public void DoSomething()
if (this is Pizza) // Noncompliant
} else if (...