diff --git a/test/fileutils/test_fileutils.rb b/test/fileutils/test_fileutils.rb
index 27511c2..4b76fea 100644
--- a/test/fileutils/test_fileutils.rb
+++ b/test/fileutils/test_fileutils.rb
@@ -2100,6 +2100,10 @@ def test_have_option?
   end
 
   def test_options
+    options = FileUtils.options
+    assert_include(options, 'force')
+    assert_include(options, 'verbose')
+    assert_equal(options.uniq, options)
   end
 
   def test_options_of