anchor.diff:    :ok)
   
   (rtest:deftest :read-sb16/be
  -  (read-test 'nibbles:read-ub16/be 2 t t)
  +  (read-test 'nibbles:read-sb16/be 2 t t)
     :ok)
   
   (rtest:deftest :read-ub32/be
  
positive.code:   :ok)
  
  (rtest:deftest :read-sb64/le
    (read-test 'nibbles:read-ub64/le 8 t nil)
    :ok)
  
negative.code:   :ok)
  
  (rtest:deftest :read-sb32/be
    (read-test 'nibbles:read-sb32/be 4 t t)
    :ok)
  
  (rtest:deftest :read-ub64/be
  