From 85e81f9bdf9d482338c504ff3c658993a24978a0 Mon Sep 17 00:00:00 2001
From: Travis Fields <travis@puppetlabs.com>
Date: Fri, 27 Feb 2015 17:40:32 -0800
Subject: [PATCH] Loosen the restrictions of upcase and allow for recursion of
 the objects and only worry if the object responds to upcase

---
 README.markdown                       |  2 +-
 lib/puppet/parser/functions/upcase.rb | 10 +++++-----
 spec/functions/upcase_spec.rb         | 19 +++++++++++++++++++
 3 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/README.markdown b/README.markdown
index 3d2d1b9a3..0ea0c4e9b 100644
--- a/README.markdown
+++ b/README.markdown
@@ -475,7 +475,7 @@ Takes a single string value as an argument. *Type*: rvalue
 
 You can also use this with arrays. For example, `unique(["a","a","b","b","c","c"])` returns ["a","b","c"]. *Type*: rvalue
 
-* `upcase`: Converts a string or an array of strings to uppercase. For example, `upcase("abcd")` returns 'ABCD'. *Type*: rvalue
+* `upcase`: Converts an object, array or hash of objects that respond to upcase to uppercase. For example, `upcase("abcd")` returns 'ABCD'.  *Type*: rvalue
 
 * `uriescape`: Urlencodes a string or array of strings. Requires either a single string or an array as an input. *Type*: rvalue
 
diff --git a/lib/puppet/parser/functions/upcase.rb b/lib/puppet/parser/functions/upcase.rb
index 2b05db4ba..0226a885c 100644
--- a/lib/puppet/parser/functions/upcase.rb
+++ b/lib/puppet/parser/functions/upcase.rb
@@ -17,22 +17,22 @@ module Puppet::Parser::Functions
   ) do |arguments|
 
     raise(Puppet::ParseError, "upcase(): Wrong number of arguments " +
-                                "given (#{arguments.size} for 1)") if arguments.size < 1
+                                "given (#{arguments.size} for 1)") if arguments.size != 1
 
     value = arguments[0]
 
-    unless value.is_a?(Array) || value.is_a?(String) || value.is_a?(Hash)
+    unless value.is_a?(Array) || value.is_a?(Hash) || value.respond_to?(:upcase)
       raise(Puppet::ParseError, 'upcase(): Requires an ' +
-                                  'array, string or hash to work with')
+                                  'array, hash or object that responds to upcase in order to work')
     end
 
     if value.is_a?(Array)
       # Numbers in Puppet are often string-encoded which is troublesome ...
-      result = value.collect { |i| i.is_a?(String) ? i.upcase : i }
+      result = value.collect { |i| function_upcase([i]) }
     elsif value.is_a?(Hash)
       result = {}
       value.each_pair do |k, v|
-        result.merge!({k.upcase => v.collect! { |p| p.upcase }})
+        result[function_upcase([k])] = function_upcase([v])
       end
     else
       result = value.upcase
diff --git a/spec/functions/upcase_spec.rb b/spec/functions/upcase_spec.rb
index a50a3ab3a..0689099cd 100755
--- a/spec/functions/upcase_spec.rb
+++ b/spec/functions/upcase_spec.rb
@@ -36,4 +36,23 @@ class AlsoString < String
         scope.function_upcase([{'test' => %w(this that and other thing)}])
     ).to eq({'TEST' => %w(THIS THAT AND OTHER THING)})
   end
+
+  if :test.respond_to?(:upcase)
+    it 'should accept hashes of symbols' do
+      expect(
+          scope.function_upcase([{:test => [:this, :that, :other]}])
+      ).to eq({:TEST => [:THIS, :THAT, :OTHER]})
+    end
+    it 'should return upcase symbol' do
+      expect(
+          scope.function_upcase([:test])
+      ).to eq(:TEST)
+    end
+    it 'should return mixed objects in upcease' do
+      expect(
+          scope.function_upcase([[:test, 'woot']])
+      ).to eq([:TEST, 'WOOT'])
+
+    end
+  end
 end