Struct CrashPoint 

pub struct CrashPoint { /* private fields */ }

A write-truncating crash marker.

CrashPoint::after_byte(N).wrap(writer) returns a writer that passes through up to N bytes (cumulative across all write calls), then refuses every subsequent byte with ErrorKind::WriteZero.

Example

use dev_chaos::crash::CrashPoint;
use std::io::Write;

let mut sink: Vec<u8> = Vec::new();
let mut crashed = CrashPoint::after_byte(3).wrap(&mut sink);

crashed.write_all(b"abcd").ok();
drop(crashed);
assert_eq!(sink, b"abc");

Implementations

impl CrashPoint

pub fn after_byte(n: usize) -> Self

Crash after n bytes have been written cumulatively.

pub fn wrap<W: Write>(self, writer: W) -> CrashWriter<W>

Wrap writer with this crash point.

Trait Implementations

impl Clone for CrashPoint

fn clone(&self) -> CrashPoint

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CrashPoint

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for CrashPoint