=== RUN   TestAdd
=== RUN   TestAdd/one_plus_one
=== RUN   TestAdd/positive_and_negative
=== RUN   TestAdd/both_negative
=== RUN   TestAdd/zeros
--- PASS: TestAdd (0.00s)
    --- PASS: TestAdd/one_plus_one (0.00s)
    --- PASS: TestAdd/positive_and_negative (0.00s)
    --- PASS: TestAdd/both_negative (0.00s)
    --- PASS: TestAdd/zeros (0.00s)
PASS
ok  	calc	0.173s