anchor.diff:      %% Single tx should trigger micro block
       ok = aec_tx_pool:push(tx(Keys)),
   
  -    meck:unload(aec_mining),
   
       NewBlock = wait_for_block_to_publish(),
       ?assertEqual(false, aec_blocks:is_key_block(NewBlock)),
  
positive.code:              {ok, _} = ?TEST_MODULE:start_link([{autostart, false}]),
               meck:new(aec_headers, [passthrough]),
               meck:new(aec_blocks, [passthrough]),
               meck:expect(aec_headers, validate_key_block_header, fun(_) -> ok end),
               meck:expect(aec_headers, validate_micro_block_header, fun(_) -> ok end),
               meck:expect(aec_blocks, validate_key_block, fun(_) -> ok end),
  
negative.code:      end,
       fun(TmpKeysDir) ->
               teardown_common(TmpKeysDir),
               meck:unload(aec_mining),
               meck:unload(aec_blocks),
               meck:unload(aec_headers),
               ok
       end,
       [
  