Crate io_test_util

Collection of utilities for testing failure of io components, e.g. std::io::Read.

Usage

In your Cargo.toml:

[dev-dependencies]
io-test-util = "*"

In your test:

extern crate io_test_util;
use io_test_util::ErrReader;
use std::io::{ErrorKind, Read};

pub fn main() {
	let mut reader = ErrReader::new(ErrorKind::BrokenPipe);
	let res = reader.read(&mut[0; 1]);
	assert!(res.is_err());
}

Structs

ErrReader

An implementation of std::io::Read that fails on the first call to read and throws an std::io::Error with the given ErrorKind.