/
slice.rs
84 lines (72 loc) · 2.8 KB
/
slice.rs
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// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// 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.
use std::slice::BinarySearchResult::{Found, NotFound};
#[test]
fn binary_search_not_found() {
let b = [1i, 2, 4, 6, 8, 9];
assert!(b.binary_search(|v| v.cmp(&6)) == Found(3));
let b = [1i, 2, 4, 6, 8, 9];
assert!(b.binary_search(|v| v.cmp(&5)) == NotFound(3));
let b = [1i, 2, 4, 6, 7, 8, 9];
assert!(b.binary_search(|v| v.cmp(&6)) == Found(3));
let b = [1i, 2, 4, 6, 7, 8, 9];
assert!(b.binary_search(|v| v.cmp(&5)) == NotFound(3));
let b = [1i, 2, 4, 6, 8, 9];
assert!(b.binary_search(|v| v.cmp(&8)) == Found(4));
let b = [1i, 2, 4, 6, 8, 9];
assert!(b.binary_search(|v| v.cmp(&7)) == NotFound(4));
let b = [1i, 2, 4, 6, 7, 8, 9];
assert!(b.binary_search(|v| v.cmp(&8)) == Found(5));
let b = [1i, 2, 4, 5, 6, 8, 9];
assert!(b.binary_search(|v| v.cmp(&7)) == NotFound(5));
let b = [1i, 2, 4, 5, 6, 8, 9];
assert!(b.binary_search(|v| v.cmp(&0)) == NotFound(0));
let b = [1i, 2, 4, 5, 6, 8];
assert!(b.binary_search(|v| v.cmp(&9)) == NotFound(6));
}
#[test]
fn iterator_to_slice() {
macro_rules! test {
($data: expr) => {{
let data: &mut [_] = &mut $data;
let other_data: &mut [_] = &mut $data;
{
let mut iter = data.iter();
assert_eq!(iter[], other_data[]);
iter.next();
assert_eq!(iter[], other_data[1..]);
iter.next_back();
assert_eq!(iter[], other_data[1..2]);
let s = iter.as_slice();
iter.next();
assert_eq!(s, other_data[1..2]);
}
{
let mut iter = data.iter_mut();
assert_eq!(iter[], other_data[]);
// mutability:
assert!(iter[mut] == other_data);
iter.next();
assert_eq!(iter[], other_data[1..]);
assert!(iter[mut] == other_data[mut 1..]);
iter.next_back();
assert_eq!(iter[], other_data[1..2]);
assert!(iter[mut] == other_data[mut 1..2]);
let s = iter.into_slice();
assert!(s == other_data[mut 1..2]);
}
}}
}
// try types of a variety of sizes
test!([(1u64, 1u64, 1u8), (2, 2, 2), (3, 3, 3)]);
test!([1u64,2,3]);
test!([1u8,2,3]);
test!([(),(),()]);
}