From a1beec1de001f822ee62e4b2d6450bcc2aafb56b Mon Sep 17 00:00:00 2001
From: Aleksey Magusev <lexmag@gmail.com>
Date: Sun, 5 Aug 2012 23:30:01 +0400
Subject: Add AS::StringInquirer#respond_to? method

Consistently with #method_missing
---
 activesupport/lib/active_support/string_inquirer.rb | 18 ++++++++++++------
 activesupport/test/string_inquirer_test.rb          | 14 +++++++++++---
 2 files changed, 23 insertions(+), 9 deletions(-)

diff --git a/activesupport/lib/active_support/string_inquirer.rb b/activesupport/lib/active_support/string_inquirer.rb
index f3f3909a90..5f20bfa7bc 100644
--- a/activesupport/lib/active_support/string_inquirer.rb
+++ b/activesupport/lib/active_support/string_inquirer.rb
@@ -10,12 +10,18 @@ module ActiveSupport
   #   Rails.env.production?
   #
   class StringInquirer < String
-    def method_missing(method_name, *arguments)
-      if method_name[-1, 1] == "?"
-        self == method_name[0..-2]
-      else
-        super
+    private
+
+      def respond_to_missing?(method_name, include_private = false)
+        method_name[-1] == '?'
+      end
+
+      def method_missing(method_name, *arguments)
+        if method_name[-1] == '?'
+          self == method_name[0..-2]
+        else
+          super
+        end
       end
-    end
   end
 end
diff --git a/activesupport/test/string_inquirer_test.rb b/activesupport/test/string_inquirer_test.rb
index bb15916e9e..94d5fe197d 100644
--- a/activesupport/test/string_inquirer_test.rb
+++ b/activesupport/test/string_inquirer_test.rb
@@ -1,15 +1,23 @@
 require 'abstract_unit'
 
 class StringInquirerTest < ActiveSupport::TestCase
+  def setup
+    @string_inquirer = ActiveSupport::StringInquirer.new('production')
+  end
+
   def test_match
-    assert ActiveSupport::StringInquirer.new("production").production?
+    assert @string_inquirer.production?
   end
 
   def test_miss
-    assert !ActiveSupport::StringInquirer.new("production").development?
+    refute @string_inquirer.development?
   end
 
   def test_missing_question_mark
-    assert_raise(NoMethodError) { ActiveSupport::StringInquirer.new("production").production }
+    assert_raise(NoMethodError) { @string_inquirer.production }
+  end
+
+  def test_respond_to
+    assert_respond_to @string_inquirer, :development?
   end
 end
-- 
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