Skywalking: Consider to use testcontainer for collector test cases

[wu-sheng]

We don't improve our collector test cases for a long time, most reasons are about env dependencies. And I found testcontainers-java by following @bsideup .

It looks like interesting to me, several simple lines of code, you could start up a container in Java test cases.

I think we could try to use this, at least in our ElasticSearch or H2 storage implementor. At least, write some POC codes first.

FYI @hanahmily @ascrutae @peng-yongsheng Let's find out would this be helpful?

[wu-sheng]

Thanks @bsideup to write this interesting project.

[bsideup]

@wu-sheng thanks for your warm words, but I must point out that the project was created and being leaded by @rnorth, he wrote it! 💪

But I'm indeed happy to help you folks to integrate it, especially given the fact that I joined the Testcontainers project when I was doing the APM development at ZeroTurnaround :D

Let me know how I can help!

[bsideup]

Here is a list of similar uses:

• https://github.com/bsideup/javaagent-boilerplate/tree/master/src/test/java
  this is more or less how we were doing it in ZeroTurnaround
• https://bsideup.gitbooks.io/spring-io-testcontainers-workshop/content/
  this workshop has details about different scenarios of usage: JDBC containers, Singleton-like containers (where you want to share a single container between all tests) and JUnit rules (e.g. container per test)

[wu-sheng]

@wu-sheng thanks for your warm words, but I must point out that the project was created and being leaded by @rnorth, he wrote it! 💪

Sorry. Thank both @rnorth and @bsideup

[wu-sheng]

e2e and CI with IT tests have been set up by @kezhenxu94. No need to keep this open.

We keep working on e2e and IT tests.