Macro assert_io_read_to_string_matches_as_result

macro_rules! assert_io_read_to_string_matches_as_result {
    ($reader:expr, $matcher:expr $(,)?) => { ... };
}

Assert a std::io::Read read_to_string() is a match to a regex.

Pseudocode:
(reader.read_to_string(a) ⇒ a) matches matcher

• If true, return Result Ok(()).

• Otherwise, return Result Err with a diagnostic message.

This macro provides the same statements as assert_, except this macro returns a Result, rather than doing a panic.

This macro is useful for runtime checks, such as checking parameters, or sanitizing inputs, or handling different results in different ways.

Module macros

• assert_io_read_to_string_matches
• assert_io_read_to_string_matches_as_result
• debug_assert_io_read_to_string_matches