assertables

Macro assert_fs_read_to_string_is_match

Source 
macro_rules! assert_fs_read_to_string_is_match {
    ($path:expr, $matcher:expr $(,)?) => { ... };
    ($path:expr, $matcher:expr, $($message:tt)+) => { ... };
}
Expand description

Assert a ::std::fs::read_to_string(path) is a match to a regex.

Pseudocode:
std::fs::read_to_string(path) matches expr

  • If true, return path_into_string.

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

§Examples

use assertables::*;
use std::io::Read;
use regex::Regex;

let path = "alfa.txt";
let matcher = Regex::new(r"lf").expect("regex");
assert_fs_read_to_string_is_match!(path, matcher);

// This will panic
let path = "alfa.txt";
let matcher = Regex::new(r"zz").expect("regex");
assert_fs_read_to_string_is_match!(path, matcher);
// assertion failed: `assert_fs_read_to_string_is_match!(path, matcher)`
// https://docs.rs/assertables/…/assertables/macro.assert_fs_read_to_string_is_match.html
//     path label: `path`,
//     path debug: `\"alfa.txt\"`,
//  matcher label: `matcher`,
//  matcher debug: `Regex(\"zz\")`,
//         string: `\"alfa\\n\"`

§Module macros