rspec/rules/S1871/exceptions.adoc

== Exceptions

Blocks in an `+if+` chain that contain a single line of code are ignored, as are blocks in a `+switch+` statement that contain a single line of code with or without a following `+break+`.

----
if (a == 1) {
  doSomething();  //no issue, usually this is done on purpose to increase the readability
} else if (a == 2) {
  doSomethingElse();
} else {
  doSomething();
}
----

But this exception does not apply to `+if+` chains without `+else+`-s, or to `+switch+`-es without default clauses when all branches have the same single line of code. In case of `+if+` chains with `+else+`-s, or of `+switch+`-es with default clauses, rule S3923 raises a bug. 

----
if (a == 1) {
  doSomething();  //Noncompliant, this might have been done on purpose but probably not
} else if (a == 2) {
  doSomething();
}
----