exclude :test_binary, "needs investigation"
exclude :test_float, "needs investigation"
exclude :test_float_hex, "needs investigation"
exclude :test_invalid, "needs investigation"
exclude :test_named_typed, "needs investigation"
exclude :test_named_typed_enc, "needs investigation"
exclude :test_named_untyped_enc, "needs investigation"
exclude :test_rational, "missing special rational handling in sprintf (#2160)"
exclude :test_star, "differing error message somewhere deep in GETNUM macro from MRI and our equivalents"
