ensure Inflector.camelize works with symbols [#2856 state:resolved]

Signed-off-by: NYehuda Katz + Carl Lerche <ykatz+clerche@engineyard.com>

activesupport/lib/active_support/inflector.rb

@@ -183,7 +183,7 @@ def camelize(lower_case_and_underscored_word, first_letter_in_uppercase = true)
       if first_letter_in_uppercase
         lower_case_and_underscored_word.to_s.gsub(/\/(.?)/) { "::#{$1.upcase}" }.gsub(/(?:^|_)(.)/) { $1.upcase }
       else
-        lower_case_and_underscored_word.first.downcase + camelize(lower_case_and_underscored_word)[1..-1]
+        lower_case_and_underscored_word.to_s.first.downcase + camelize(lower_case_and_underscored_word)[1..-1]
       end
     end
 

activesupport/test/inflector_test.rb

@@ -202,6 +202,12 @@ def test_underscore_to_lower_camel
     end
   end
 
+  def test_symbol_to_lower_camel
+    SymbolToLowerCamel.each do |symbol, lower_camel|
+      assert_equal(lower_camel, ActiveSupport::Inflector.camelize(symbol, false))
+    end
+  end
+
   %w{plurals singulars uncountables humans}.each do |inflection_type|
     class_eval "
       def test_clear_#{inflection_type}

activesupport/test/inflector_test_cases.rb

@@ -117,6 +117,13 @@ module InflectorTestCases
     "area51_controller"      => "area51Controller"
   }
 
+  SymbolToLowerCamel = {
+    :product                => 'product',
+    :special_guest          => 'specialGuest',
+    :application_controller => 'applicationController',
+    :area51_controller      => 'area51Controller'
+  }
+
   CamelToUnderscoreWithoutReverse = {
     "HTMLTidy"              => "html_tidy",
     "HTMLTidyGenerator"     => "html_tidy_generator",