exclude :test_array_to_s, "needs investigation"
exclude :test_bignum_to_s, "needs investigation"
exclude :test_chr, "needs investigation"
exclude :test_compatible, "needs investigation"
exclude :test_delete, "needs investigation"
exclude :test_dynamic_ascii_regexp, "needs investigation"
exclude :test_dynamic_eucjp_regexp, "needs investigation"
exclude :test_dynamic_sjis_regexp, "needs investigation"
exclude :test_dynamic_utf8_regexp, "needs investigation"
exclude :test_euc_tw, "needs investigation"
exclude :test_false_to_s, "needs investigation"
exclude :test_fixnum_to_s, "needs investigation"
exclude :test_float_to_s, "needs investigation"
exclude :test_gsub, "needs investigation"
exclude :test_hash_to_s, "needs investigation"
exclude :test_nil_inspect, "needs investigation"
exclude :test_nil_to_s, "needs investigation"
exclude :test_nonascii_method_name, "needs investigation"
exclude :test_regexp_ascii_none, "needs investigation"
exclude :test_regexp_mixed_unicode, "needs investigation"
exclude :test_regexp_too_short_multibyte_character, "needs investigation"
exclude :test_regexp_unicode, "needs investigation"
exclude :test_regexp_usascii, "needs investigation"
exclude :test_sprintf_c, "format string encoding should be used to decode incoming fixnums"
exclude :test_str_String, "needs investigation"
exclude :test_str_aref_substr, "needs investigation"
exclude :test_str_concat, "needs investigation"
exclude :test_str_multiply, "needs investigation"
exclude :test_string_inspect_encoding, "needs investigation"
exclude :test_string_mixed_unicode, "needs investigation"
exclude :test_symbol, "needs investigation"
exclude :test_symbol_op, "needs investigation"
exclude :test_true_to_s, "needs investigation"
exclude :test_union_0, "needs investigation"
exclude :test_union_1_nonascii_string, "needs investigation"
exclude :test_union_1_regexp, "needs investigation"
exclude :test_valid_encoding, "needs investigation"
