Use the traits added to the Rust 2021 Edition prelude

[rust.git] / tests / ui / get_unwrap.rs

diff --git a/tests/ui/get_unwrap.rs b/tests/ui/get_unwrap.rs
index e8789db6fc1a91867fb42ebdd715d4388d9ac80e..786749daa746e802a228c5cf1165ee544ce1fc20 100644 (file)
--- a/tests/ui/get_unwrap.rs
+++ b/tests/ui/get_unwrap.rs
@@ -1,18 +1,12 @@
-// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution.
-//
-// 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.
+// run-rustfix
 
-#![allow(unused_mut)]
+#![allow(unused_mut, clippy::from_iter_instead_of_collect)]
+#![warn(clippy::unwrap_used)]
+#![deny(clippy::get_unwrap)]
 
 use std::collections::BTreeMap;
 use std::collections::HashMap;
 use std::collections::VecDeque;
-use std::iter::FromIterator;
 
 struct GetFalsePositive {
     arr: [u32; 3],
@@ -44,7 +38,10 @@ fn main() {
         let _ = some_vecdeque.get(0).unwrap();
         let _ = some_hashmap.get(&1).unwrap();
         let _ = some_btreemap.get(&1).unwrap();
+        #[allow(clippy::unwrap_used)]
         let _ = false_positive.get(0).unwrap();
+        // Test with deref
+        let _: u8 = *boxed_slice.get(1).unwrap();
     }
 
     {
@@ -54,9 +51,12 @@ fn main() {
         *some_vec.get_mut(0).unwrap() = 1;
         *some_vecdeque.get_mut(0).unwrap() = 1;
         // Check false positives
-        *some_hashmap.get_mut(&1).unwrap() = 'b';
-        *some_btreemap.get_mut(&1).unwrap() = 'b';
-        *false_positive.get_mut(0).unwrap() = 1;
+        #[allow(clippy::unwrap_used)]
+        {
+            *some_hashmap.get_mut(&1).unwrap() = 'b';
+            *some_btreemap.get_mut(&1).unwrap() = 'b';
+            *false_positive.get_mut(0).unwrap() = 1;
+        }
     }
 
     {