+
+ def test_modify_existing_key
+ Ogg::Vorbis::Tagger.open(@ogg_buf) do |t|
+ assert_raises(TypeError) do
+ t.comments.keys.first.replace("new")
+ end
+ end
+ end
+
+ def test_modify_added_key
+ Ogg::Vorbis::Tagger.open(@ogg_buf) do |t|
+ t.comments["Foo"] = "Bar"
+
+ assert_raises(TypeError) do
+ t.comments.keys.last.replace("new")
+ end
+ end
+ end