[ruby/irb] do not escape a predicate method for doc namespace

* Fixes #88

https://github.com/ruby/irb/commit/d431a30af4

1 files changed, 8 insertions, 0 deletions

diff --git a/test/irb/test_completion.rb b/test/irb/test_completion.rb
index a765bbf3a5..39d4be4a5a 100644
--- a/test/irb/test_completion.rb
+++ b/test/irb/test_completion.rb
@@ -47,5 +47,13 @@ module TestIRB
         assert_include candidates, word
       end
     end
+
+    def test_complete_predicate?
+      candidates = IRB::InputCompletor.retrieve_completion_data("1.posi", bind: binding)
+      assert_equal %w[1.positive?], candidates
+
+      namespace = IRB::InputCompletor.retrieve_completion_data("1.positive?", bind: binding, doc_namespace: true)
+      assert_equal "Integer.positive?", namespace
+    end
   end
 end