exclude :test_beg_len, "needs investigation"
exclude :test_comparison_when_recursive, "needs investigation"
exclude :test_cyclic_range_inspect, "needs investigation"
exclude :test_duckrange, "needs investigation"
exclude :test_max, "needs investigation"
exclude :test_range_numeric_string, "needs investigation"
exclude :test_step, "needs investigation"
exclude :test_step_ruby_core_35753, "needs investigation"