test: fix linked_hash_set test relying on random state (#950)

nervosnetwork · Jun 5, 2019 · c38856c · c38856c
1 parent 234d52d
commit c38856c
Showing 1 changed file with 0 additions and 7 deletions.
diff --git a/util/src/linked_hash_set.rs b/util/src/linked_hash_set.rs
@@ -192,7 +192,6 @@ impl<K> ExactSizeIterator for IntoIter<K> {
 mod tests {
     use super::*;
     use numext_fixed_hash::{h256, H256};
-    use std::collections::HashSet as StdHashSet;
 
     #[test]
     fn insertion_order() {
@@ -205,12 +204,6 @@ mod tests {
 
         let txs = vec![tx1, tx2, tx3, tx4, tx5, tx6];
 
-        let mut std_set = StdHashSet::new();
-        std_set.extend(txs.iter().cloned());
-        // std hashset do not keep insertion order
-        let diff: Vec<H256> = std_set.difference(&StdHashSet::new()).cloned().collect();
-        assert!(txs != diff);
-
         let mut set = LinkedHashSet::default();
         set.extend(txs.iter().cloned());
         let diff: Vec<H256> = set.difference(&LinkedHashSet::default()).cloned().collect();