assertables

Macro assert_program_args_stderr_contains

source 
macro_rules! assert_program_args_stderr_contains {
    ($a_program:expr, $a_args:expr, $containee:expr $(,)?) => { ... };
    ($a_program:expr, $a_args:expr, $containee:expr, $($message:tt)+) => { ... };
}
👎Deprecated: Please rename from assert_program_args_stderr_contains to assert_program_args_stderr_string_contains because this macro does the comparison via a Rust UTF-8 String.
Expand description

Assert a command (built with program and args) stderr string contains a given containee.

Pseudocode:
(program1 + args1 ⇒ command ⇒ stderr ⇒ string) contains (expr into string)

  • If true, return ().

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

This uses std::String method contains.

  • The containee can be a &str, char, a slice of chars, or a function or closure that determines if a character contains.

§Examples

use assertables::*;

let program = "bin/printf-stderr";
let args = ["%s", "alfa"];
let containee = "lf";
assert_program_args_stderr_contains!(&program, &args, &containee);

// This will panic
let program = "bin/printf-stderr";
let args = ["%s", "alfa"];
let containee = "zz";
assert_program_args_stderr_contains!(&program, &args, &containee);
// assertion failed: `assert_program_args_stderr_contains!(a_program, a_args, containee)`
// https://docs.rs/assertables/8.14.0/assertables/macro.assert_program_args_stderr_contains.html
//  a_program label: `&program`,
//  a_program debug: `\"bin/printf-stderr\"`,
//     a_args label: `&args`,
//     a_args debug: `[\"%s\", \"alfa\"]`,
//  containee label: `&containee`,
//  containee debug: `\"zz\"`,
//                a: `\"alfa\"`,
//        containee: `\"zz\"`

§Module macros