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Rollup merge of rust-lang#55469 - pnkfelix:issue-54477-regression-tes…
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…ts, r=nikomatsakis

Regression tests for issue rust-lang#54477.

At some point someone may want to revisit PR rust-lang#53564

it would be really good to have regression tests for rust-lang#54477 before that happens. :)
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pietroalbini authored Nov 1, 2018
2 parents 5b00095 + 465cd66 commit 38435b1
Showing 1 changed file with 25 additions and 0 deletions.
25 changes: 25 additions & 0 deletions src/test/run-pass/issues/issue-54477-reduced-2.rs
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// rust-lang/rust#54477: runtime bug in the VecDeque library that was
// exposed by this test case, derived from test suite of crates.io
// `collection` crate.

use std::collections::VecDeque;

fn main() {
let mut vecdeque_13 = VecDeque::from(vec![ ]);
let mut vecdeque_29 = VecDeque::from(vec![ 0 ]);
vecdeque_29.insert(0, 30 );
vecdeque_29.insert(1, 31 );
vecdeque_29.insert(2, 32 );
vecdeque_29.insert(3, 33 );
vecdeque_29.insert(4, 34 );
vecdeque_29.insert(5, 35 );
// println!("vecdeque_13: {:?}", vecdeque_13);
// println!("vecdeque_29: {:?}", vecdeque_29);

// println!("Invoking: `vecdeque_13.append(&mut vecdeque_29)`");
vecdeque_13.append(&mut vecdeque_29);

// println!("vecdeque_13: {:?}", vecdeque_13);

assert_eq!(vecdeque_13, VecDeque::from(vec![30, 31, 32, 33, 34, 35, 0]));
}

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