covered functions
coverage function
93.88(138/147) units_module_mp_unitscategory_
88.10(37/42) units_module_mp_unitsconverttointernal_
84.54(82/97) units_module_mp_unitsconvert_
81.69(116/142) units_module_mp_unitsconverttosi_
80.65(50/62) units_module_mp_unitsconvertparse_
80.56(29/36) units_module_mp_unitscategorycheck_