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ASF GitHub Bot logged work on COLLECTIONS-802: ---------------------------------------------- Author: ASF GitHub Bot Created on: 24/Apr/22 22:45 Start Date: 24/Apr/22 22:45 Worklog Time Spent: 10m Work Description: kinow commented on PR #300: URL: https://github.com/apache/commons-collections/pull/300#issuecomment-1107932772 > oops. I must have forgotten, not realized, or master has new failures. I very much like Guava’s collection tests as reusable and catch these minor mistakes. I’d recommend using it elsewhere as another sanity check over your own great testing. I hadn't heard about that before, but looks super useful. But from the amount of errors, that would probably be an epic task, maybe even worth of GSoC, I think. Thanks @ben-manes ! Issue Time Tracking ------------------- Worklog Id: (was: 761530) Time Spent: 1h (was: 50m) > ReferenceMap iterator remove violates contract > ---------------------------------------------- > > Key: COLLECTIONS-802 > URL: https://issues.apache.org/jira/browse/COLLECTIONS-802 > Project: Commons Collections > Issue Type: Bug > Components: Map > Affects Versions: 4.4 > Reporter: Ben Manes > Priority: Minor > Attachments: ApacheMapTest.java > > Time Spent: 1h > Remaining Estimate: 0h > > Out of curiosity I ran Guava's testlib Map tests against the Apache types. > This uncovered a contract bug where {{Iterator.remove()}} is invalidated by > {{{}hasNext(){}}}, causing its call to no-op due to {{currentKey}} becoming > {{{}null{}}}. The isolates case is, > {code:java} > @Test > public void iterator_remove() { > var map = new ReferenceMap<>(); > map.put(1, 2); > var iter = map.entrySet().iterator(); > assertTrue(iter.hasNext()); > assertTrue(iter.hasNext()); > assertEquals(iter.next(), 1); > assertFalse(iter.hasNext()); > iter.remove(); > assertEquals(map, Map.of()); > }{code} > Guava's [testlib|https://github.com/google/guava/tree/master/guava-testlib] > has good coverage for the Collections Framework and might be worth > integrating. The simple test case that I wrote is attached. -- This message was sent by Atlassian Jira (v8.20.7#820007)