1 files changed, 13 insertions, 0 deletions
diff --git a/test/json/test_json.rb b/test/json/test_json.rb
index 4c724fd36e..5f186f0c08 100755
--- a/test/json/test_json.rb
+++ b/test/json/test_json.rb
@@ -398,4 +398,17 @@ EOT
     json = JSON::Parser.allocate
     assert_raises(TypeError, '[ruby-core:35079]') {json.source}
   end
+
+  def test_argument_encoding
+    source = "{}".force_encoding("ascii-8bit")
+    JSON::Parser.new(source)
+    assert_equal Encoding::ASCII_8BIT, source.encoding
+  end
+
+  def test_frozen_argument
+    source = "{}".force_encoding("ascii-8bit")
+    source.freeze
+    parser = nil
+    assert_nothing_raised {parser = JSON::Parser.new(source)}
+  end
 end