Assertions are not very verbose

[Altai-man]

k 5 - GET /auth/register
    ok 1 - Status is acceptable
    not ok 2 - Body is acceptable
    # Failed test 'Body is acceptable'
    # at site#sources/5B90696EE156C43379D1D63343E6F36668CC6090 (Cro::HTTP::Test) line 223
    1..2

Ok, so my assertion is wrong, but... How? Something like "I expected body to match, but got this: ..." would make debugging of test cases easier. I understand that listing a whole body might be overwhelming, but having at least a flag to do so would help tremendously.