macro_rules! assert_read_to_string_gt {
    ($left:expr, $right:expr $(,)?) => { ... };
    ($left:expr, $right:expr, $($arg:tt)+) => { ... };
}
Expand description

Assert a std::io::Read read_to_string() value is greater than another.

  • When true, return ().

  • Otherwise, call panic! with a message and the values of the expressions with their debug representations.

Examples

use std::io::Read;
let mut a = "a".as_bytes();
let mut b = "b".as_bytes();
assert_read_to_string_gt!(b, a);
//-> ()

use std::io::Read;
let mut a = "a".as_bytes();
let mut b = "b".as_bytes();
assert_read_to_string_gt!(a, b);
//-> panic!
// assertion failed: `assert_read_to_string_gt!(left, right)`
//   left: `\"a\"`,
//  right: `\"b\"`

This macro has a second form where a custom message can be provided.