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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /library/core/tests/iter/adapters/copied.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | library/core/tests/iter/adapters/copied.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/library/core/tests/iter/adapters/copied.rs b/library/core/tests/iter/adapters/copied.rs new file mode 100644 index 000000000..b12f2035d --- /dev/null +++ b/library/core/tests/iter/adapters/copied.rs @@ -0,0 +1,18 @@ +use core::iter::*; + +#[test] +fn test_copied() { + let xs = [2, 4, 6, 8]; + + let mut it = xs.iter().copied(); + assert_eq!(it.len(), 4); + assert_eq!(it.next(), Some(2)); + assert_eq!(it.len(), 3); + assert_eq!(it.next(), Some(4)); + assert_eq!(it.len(), 2); + assert_eq!(it.next_back(), Some(8)); + assert_eq!(it.len(), 1); + assert_eq!(it.next_back(), Some(6)); + assert_eq!(it.len(), 0); + assert_eq!(it.next_back(), None); +} |