Assert a std::io::Read read_to_string() value is greater than another.
use std::io::Read; let mut a = "alfa".as_bytes(); let mut b = "bravo".as_bytes(); assert_io_read_to_string_gt!(b, a);
assert_io_read_to_string_gt
assert_io_read_to_string_gt_as_result
debug_assert_io_read_to_string_gt