lib/Math/BigInt/t/calling.t Test calling conventions
lib/Math/BigInt/t/config.t Test Math::BigInt->config()
lib/Math/BigInt/t/constant.t Test Math::BigInt/BigFloat under :constant
+lib/Math/BigInt/t/const_mbf.t Test Math::BigInt
lib/Math/BigInt/t/downgrade.t Test if use Math::BigInt(); under downgrade works
+lib/Math/BigInt/t/fallback.t Test Math::BigInt
lib/Math/BigInt/t/inf_nan.t Special tests for inf and NaN handling
lib/Math/BigInt/t/isa.t Test for Math::BigInt inheritance
lib/Math/BigInt/t/mbimbf.inc Actual BigInt/BigFloat accuracy, precision and fallback, round_mode tests