assertables

Macro assert_program_args_stdout_le

Source 
macro_rules! assert_program_args_stdout_le {
    ($a_program:expr, $a_args:expr, $b_program:expr, $b_args:expr $(,)?) => { ... };
    ($a_program:expr, $a_args:expr, $b_program:expr, $($message:tt)+) => { ... };
}
Expand description

Assert a command (built with program and args) stdout is less than or equal to another.

Pseudocode:
(a_program + a_args ⇒ command ⇒ stdout) ≤ (b_program + b_args ⇒ command ⇒ stdout)

  • If true, return (a_stdout, b_stdout).

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

§Examples

use assertables::*;

let a_program = "bin/printf-stdout";
let a_args = ["%s", "alfa"];
let b_program = "bin/printf-stdout";
let b_args = ["%s%s", "z", "z"];
assert_program_args_stdout_le!(&a_program, &a_args, &b_program, &b_args);

// This will panic
let a_program = "bin/printf-stdout";
let a_args = ["%s", "alfa"];
let b_program = "bin/printf-stdout";
let b_args = ["%s%s", "a", "a"];
assert_program_args_stdout_le!(&a_program, &a_args, &b_program, &b_args);
// assertion failed: `assert_program_args_stdout_le!(a_program, a_args, b_program, b_args)`
// https://docs.rs/assertables/9.5.1/assertables/macro.assert_program_args_stdout_le.html
//  a_program label: `&a_program`,
//  a_program debug: `\"bin/printf-stdout\"`,
//     a_args label: `&a_args`,
//     a_args debug: `[\"%s\", \"alfa\"]`,
//  b_program label: `&b_program`,
//  b_program debug: `\"bin/printf-stdout\"`,
//     b_args label: `&b_args`,
//     b_args debug: `[\"%s%s\", \"a\", \"a\"]`,
//                a: `[97, 108, 102, 97]`,
//                b: `[97, 97]`

§Module macros