[jira] [Work logged] (COLLECTIONS-811) Consider integration Guava testlib tests

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COLLECTIONS-811?focusedWorklogId=778646&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-778646 ]

ASF GitHub Bot logged work on COLLECTIONS-811:
----------------------------------------------

                Author: ASF GitHub Bot
            Created on: 06/Jun/22 14:29
            Start Date: 06/Jun/22 14:29
    Worklog Time Spent: 10m 
      Work Description: garydgregory commented on code in PR #301:
URL: https://github.com/apache/commons-collections/pull/301#discussion_r890210693


##########
src/test/java/org/apache/commons/collections4/GuavaTestlibTest.java:
##########
@@ -0,0 +1,126 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.commons.collections4;
+
+import java.util.List;
+import java.util.Map;
+import java.util.function.Supplier;
+
+import org.apache.commons.collections4.list.TreeList;
+import org.apache.commons.collections4.map.HashedMap;
+import org.apache.commons.collections4.map.LRUMap;
+import org.apache.commons.collections4.map.LinkedMap;
+import org.apache.commons.collections4.map.ReferenceMap;
+
+import com.google.common.collect.testing.ListTestSuiteBuilder;
+import com.google.common.collect.testing.MapTestSuiteBuilder;
+import com.google.common.collect.testing.TestStringListGenerator;
+import com.google.common.collect.testing.TestStringMapGenerator;
+import com.google.common.collect.testing.features.CollectionFeature;
+import com.google.common.collect.testing.features.CollectionSize;
+import com.google.common.collect.testing.features.Feature;
+import com.google.common.collect.testing.features.ListFeature;
+import com.google.common.collect.testing.features.MapFeature;
+
+import junit.framework.Test;
+import junit.framework.TestCase;
+import junit.framework.TestSuite;
+
+/**
+ * This test uses Google's Guava Testlib testing libraries to validate the
+ * contract of collection classes in Commons Collections. This was introduced
+ * after COLLECTIONS-802, where the issue reported was found with Testlib,
+ * with thanks to Ben Manes.

Review Comment:
   We don't use `@author` tags, so would you please move attribution to `changes.xml` and/or `pom.xml`?





Issue Time Tracking
-------------------

    Worklog Id:     (was: 778646)
    Time Spent: 2h 20m  (was: 2h 10m)

> Consider integration Guava testlib tests
> ----------------------------------------
>
>                 Key: COLLECTIONS-811
>                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-811
>             Project: Commons Collections
>          Issue Type: Test
>    Affects Versions: 4.4
>            Reporter: Bruno P. Kinoshita
>            Assignee: Bruno P. Kinoshita
>            Priority: Minor
>             Fix For: 4.5
>
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> In COLLECTIONS-802 an issue reported was found with the help of Google Guava testlib tests.
> Maybe we could either have something similar (i.e. build ourselves?), use Google Guava's testlib, or find another similar solution. From what I understood, it uses a factory function to create an implementation of a collection interface (e.g. Map) and then runs a series of functional tests over the created object, failing tests if a contract is broken (e.g. iterating a map doesn't leave the next-object as null, as it was the case of the 802 issue).



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