== Why is this an issue?

Having all branches in a ``++when++`` or ``++if++`` chain with the same implementation is an error. Either a copy-paste error was made and something different should be executed, or there shouldn't be a ``++when++``/``++if++`` chain at all.

=== Noncompliant code example

[source,kotlin]
----
if (b == 0) {  // Noncompliant
     doOneMoreThing()
} else {
     doOneMoreThing()
}

when (i) {  // Noncompliant
    1 -> doSomething()
    2 -> doSomething()
    3 -> doSomething()
    else -> doSomething()
}
----

=== Exceptions

This rule does not apply to ``++if++`` chains without ``++else++``-s, or to ``++when++``-es without ``++else++`` clauses.


----
if (b == 0) {
    doOneMoreThing()
} else if (b == 1) {
    doOneMoreThing()
}
----

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

include::../message.adoc[]

include::../highlighting.adoc[]

'''
== Comments And Links
(visible only on this page)

include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]