Motivation:
According the feedback from the community, the e2e tests are hard for
them to understand and get them started, so this pull request aims to
rewrite the e2e tests with some improvements:
- debuggable locally, now you can run every individual case directly
inside the IDE, just like running a plain unit test.
- same functionalities of multiple counterparts share the same codes,
cases like different storages and cluster coordinators share the same
codes, easy to add more similar cases.
- the "end" now extends to the Doccker images, meaning that some bugs
like #4483 and #4471 can be more easily and early to be discovered.
- codes style and license headers are checked
Modifications:
- adopt jupeter (a.k.a junit 5), testcontainers as the new test
framework, all containers are orchestrated by docker-compose.yml,
well-known technology that developers should be familiar with.
- rewrite all test cases and verify them.
- reorganize the workflows in GitHub Actions.
Result:
- new e2e test should be easy to add.
- closes https://github.com/apache/skywalking/issues/4472
* Remove the local span and exit span register mechanism in Java agent scenario.
* Fix config, plugin, and document, as exit span is not required register anymore.
* Try to fix the test case expected data due to no register for exit span.
* Fix toolkit case.
* Remove exit span from plugin test framework document.
* Update protocol, FAQ, and CHANGELOG documents to highlight this change.
* Fix NPE when no entry span in the whole segment. Set endpoint to null in segment entity.
* Fix the snapshot and add inexistence operation name id.
* Fix several async cases.
* Fix undertow test case.
* Fix wrong error log name.
* Keep name consistent with 6.x concepts.
* Try to fix 3 async scenarios.
* Fix okhttp case.
* Fix Spring Async case.
* Fix another NPE
* Fix NPE when first span has no endpoint id when it is local or exit span.
* Still fill first operation name when no endpoint id.
* Move oal tool back into main repo, and fix compile issue.
* Fix two bugs.
* Remove all generated codes.
* Make all oal generated codes out of source control.
* Make mvn compile and package work.
* Fix test cases.
* Make compile right and provide new documents.
* Remove an unnecessary tokens file.