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Fix linkemap swap (#3468)

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* fix linkedmap swap

* version bump
This commit is contained in:
thiolliere
2019-08-24 06:51:40 +02:00
committed by Gavin Wood
parent 725aa0aec8
commit a3e2a710c8
3 changed files with 66 additions and 1 deletions
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substrate/srml/support/src/lib.rs
+29
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@@ -342,6 +342,35 @@ mod tests {
});
}
#[test]
fn linked_map_swap_works() {
with_externalities(&mut new_test_ext(), || {
OptionLinkedMap::insert(0, 0);
OptionLinkedMap::insert(1, 1);
OptionLinkedMap::insert(2, 2);
OptionLinkedMap::insert(3, 3);
let collect = || OptionLinkedMap::enumerate().collect::<Vec<_>>();
assert_eq!(collect(), vec![(3, 3), (2, 2), (1, 1), (0, 0)]);
// Two existing
OptionLinkedMap::swap(1, 2);
assert_eq!(collect(), vec![(3, 3), (2, 1), (1, 2), (0, 0)]);
// Back to normal
OptionLinkedMap::swap(2, 1);
assert_eq!(collect(), vec![(3, 3), (2, 2), (1, 1), (0, 0)]);
// Left existing
OptionLinkedMap::swap(2, 5);
assert_eq!(collect(), vec![(5, 2), (3, 3), (1, 1), (0, 0)]);
// Right existing
OptionLinkedMap::swap(5, 2);
assert_eq!(collect(), vec![(2, 2), (3, 3), (1, 1), (0, 0)]);
});
}
#[test]
fn linked_map_basic_insert_remove_should_work() {
with_externalities(&mut new_test_ext(), || {