1 files changed, 16 insertions, 1 deletions
diff --git a/test/fileutils/test_nowrite.rb b/test/fileutils/test_nowrite.rb
index 2189f5f8da..369f8ca608 100644
--- a/test/fileutils/test_nowrite.rb
+++ b/test/fileutils/test_nowrite.rb
@@ -5,10 +5,25 @@ require 'fileasserts'
 require 'tmpdir'
 require 'test/unit'
 
-class TestNoWrite < Test::Unit::TestCase
+class TestFileUtilsNoWrite < Test::Unit::TestCase
 
   include FileUtils::NoWrite
 
+  def test_visibility
+    FileUtils::METHODS.each do |m|
+      assert_equal true, FileUtils::NoWrite.respond_to?(m, true),
+                   "FileUtils::NoWrite.#{m} is not defined"
+      assert_equal true, FileUtils::NoWrite.respond_to?(m, false),
+                   "FileUtils::NoWrite.#{m} is not public"
+    end
+    FileUtils::METHODS.each do |m|
+      assert_equal true, respond_to?(m, true),
+                   "FileUtils::NoWrite\##{m} is not defined"
+      assert_equal true, FileUtils::NoWrite.private_method_defined?(m),
+                   "FileUtils::NoWrite\##{m} is not private"
+    end
+  end
+
   def my_rm_rf(path)
     if File.exist?('/bin/rm')
       system %Q[/bin/rm -rf "#{path}"]