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)
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.
§Example
let program = "bin/printf-stderr";
let args = ["%s", "hello"];
let containee = "ell";
assert_program_args_stderr_contains!(&program, &args, &containee);