1 files changed, 21 insertions, 0 deletions
diff --git a/test/rdoc/test_rdoc_ri_driver.rb b/test/rdoc/test_rdoc_ri_driver.rb
index 1aa4762f92..81c8469e25 100644
--- a/test/rdoc/test_rdoc_ri_driver.rb
+++ b/test/rdoc/test_rdoc_ri_driver.rb
@@ -969,6 +969,27 @@ Foo::Bar#bother
     assert_equal 'nonexistent', e.name
   end
 
+  def test_did_you_mean
+    skip 'skip test with did_you_men' unless defined? DidYouMean::SpellChecker
+
+    util_ancestors_store
+
+    e = assert_raises RDoc::RI::Driver::NotFoundError do
+      @driver.lookup_method 'Foo.i_methdo'
+    end
+    assert_equal "Nothing known about Foo.i_methdo\nDid you mean?  i_method", e.message
+
+    e = assert_raises RDoc::RI::Driver::NotFoundError do
+      @driver.lookup_method 'Foo#i_methdo'
+    end
+    assert_equal "Nothing known about Foo#i_methdo\nDid you mean?  i_method", e.message
+
+    e = assert_raises RDoc::RI::Driver::NotFoundError do
+      @driver.lookup_method 'Foo::i_methdo'
+    end
+    assert_equal "Nothing known about Foo::i_methdo\nDid you mean?  c_method", e.message
+  end
+
   def test_formatter
     tty = Object.new
     def tty.tty?() true; end