diff options
Diffstat (limited to 'src/libcore/tests/option.rs')
| -rw-r--r-- | src/libcore/tests/option.rs | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/src/libcore/tests/option.rs b/src/libcore/tests/option.rs index 1324ba2d9a9..b059b134868 100644 --- a/src/libcore/tests/option.rs +++ b/src/libcore/tests/option.rs @@ -1,13 +1,3 @@ -// 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 core::option::*; use core::mem; use core::clone::Clone; @@ -248,6 +238,27 @@ fn test_collect() { assert!(v == None); } +#[test] +fn test_copied() { + let val = 1; + let val_ref = &val; + let opt_none: Option<&'static u32> = None; + let opt_ref = Some(&val); + let opt_ref_ref = Some(&val_ref); + + // None works + assert_eq!(opt_none.clone(), None); + assert_eq!(opt_none.copied(), None); + + // Immutable ref works + assert_eq!(opt_ref.clone(), Some(&val)); + assert_eq!(opt_ref.copied(), Some(1)); + + // Double Immutable ref works + assert_eq!(opt_ref_ref.clone(), Some(&val_ref)); + assert_eq!(opt_ref_ref.clone().copied(), Some(&val)); + assert_eq!(opt_ref_ref.copied().copied(), Some(1)); +} #[test] fn test_cloned() { |