assert_equal("字", CHISE::Character.get("&J90-3B7A;").to_s)
assert_equal("字", "字".de_er) # no effect
assert_equal("字", "&J90-3B7A;".de_er)
assert_equal("字", CHISE::Character.get("&J90-3B7A;").to_s)
assert_equal("字", "字".de_er) # no effect
assert_equal("字", "&J90-3B7A;".de_er)