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Tibor Digana commented on SUREFIRE-1328: ---------------------------------------- You have a problem with Eclipse. Try to use identical sources from Jira. And launch Junit in low level: {{List<Failure> = new JUnitCore().run(TestUseCustomCollection.class).getFailures();}} Evaluate it. I think everything is correct with both tests because the first one "test" does not have an assignment to {{WrongInterface}} and must not fail. The problem is that you value in map has {{java.lang.Object}}, see {{CustomCollection#put(String, Object)}}. From the point of view of Mockito this type can be either Item or WrongInterface. Since you passed {{new Item()}}, the type {{Item}} is not type of {{WrongInterface}} the line fails on ClassCastException. In the first test {{test()}} you do not have such assignment and therefore it must not fail. >From my point of view you have build and run different {{*.class}} files and >not the sources you gave me. As I said the result in IntelliJ IDEA is: "test" is successful. "testThatActualFails" fails I would close this issue as user's error. > Test should throw ClassCastException but doesn't > ------------------------------------------------ > > Key: SUREFIRE-1328 > URL: https://issues.apache.org/jira/browse/SUREFIRE-1328 > Project: Maven Surefire > Issue Type: Bug > Components: Junit 4.x support, Maven Surefire Plugin > Affects Versions: 2.19.1 > Environment: Windows and Linux (Ubuntu 14.04); Java 1.8.0 111 and 112 > x64; junit 4.12; mockito 2.6.8; assertj 3.6.2 > Reporter: Ossian Petri > Assignee: Tibor Digana > Attachments: 2017-04-10 13_09_48-surefireBug.jpg, surefireBug.zip, > test_eclipes.png, testThatActualFails_eclipes.png > > > When using argument captor together with assertThat::isInstanceOf in the > example code that is provided an ClassCastException is expected. This > behavior can be seen when running the test from command line and as well from > Intellij which uses surefire plugin. However this code behaves predictably in > Eclipse since it has its own test executor. -- This message was sent by Atlassian JIRA (v6.3.15#6346)