jruby: Add StringIO::VERSION (#59)

kou · hsbt · commit 0a219ef44af0 · 2023-08-29T18:15:05.000+09:00
Fixes GH-57
diff --git a/test/stringio/test_stringio.rb b/test/stringio/test_stringio.rb
@@ -14,6 +14,10 @@ def open_file(content)
 
   include TestEOF::Seek
 
+  def test_version
+    assert_kind_of(String, StringIO::VERSION)
+  end
+
   def test_initialize
     assert_kind_of StringIO, StringIO.new
     assert_kind_of StringIO, StringIO.new('str')
