proptest 0.7.2

Hypothesis-like property-based testing and shrinking.
Documentation 
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//-
// Copyright 2017, 2018 The proptest developers
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

//! Arbitrary implementations for `std::hash`.

use std::hash::{BuildHasherDefault, Hasher};
use std::collections::hash_map::{DefaultHasher, RandomState};

// NOTE: don't impl for std::hash::SipHasher.. since deprecated!

// over-constrain on purpose!
arbitrary!([H: Default + Hasher] BuildHasherDefault<H>; Default::default());

lazy_just!(DefaultHasher, Default::default; RandomState, Default::default);

#[cfg(test)]
mod test {
    no_panic_test!(
        default_hasher => DefaultHasher,
        random_state => RandomState,
        build_hasher_default => BuildHasherDefault<DefaultHasher>
    );
}