with_height test method might produce invalid blocks because, after #79, we can't create empty blocks any more, and some random txs might result in a not enough proof of work, thus making at_height (in #56) method panic when validating the produced blocks.
with_height
test method might produce invalid blocks because, after #79, we can't create empty blocks any more, and some random txs might result in a not enough proof of work, thus makingat_height
(in #56) method panic when validating the produced blocks.Fixes #56