Issue #8778 has been updated by Jeff McCune.

Nigel Kersten wrote:
> Can we get a tighter scope on this? Is it just undef, or all symbols?

What other symbols do you mean?  true / false?  File[foo] == File[foo] ?
----------------------------------------
Bug #8778: Equality in Puppet is not commutative
https://projects.puppetlabs.com/issues/8778

Author: Jeff McCune
Status: Needs More Information
Priority: Normal
Assignee: Jeff McCune
Category: parser
Target version: 
Affected Puppet version: 
Keywords: 
Branch: 


# Overview #

The equality (`==`) test in Puppet is not commutative in combination with the 
undef value.

All three notices should print OR only "undef == undef" should print.  Two 
notices should NOT print.
<pre>
if undef == undef {
  notice("undef == undef")
}
if undef == '' {
  notice("undef == ''")
}
if '' == undef {
  notice("'' == undef")
}
</pre>

# Actual Behavior #

Notice that undef == '' but not '' == undef.

<pre>
notice: Scope(Class[main]): undef == undef
notice: Scope(Class[main]): undef == ''
notice: Finished catalog run in 0.02 seconds
</pre>



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