I use test-infra stuff even at ckc but before deprecating the testcontainers components I'd like to have feedback from existing users..
Il mar 5 gen 2021, 11:36 Otavio Rodolfo Piske <angusyo...@gmail.com> ha scritto: > Thanks Claus! That's a good point and I haven't written much - other than > the pre 3.7 release doc update - about it. > > Let me show what a conversion from the camel-testcontainer to > camel-test-infra would look like ... I am using the work on camel-nats as > an example and we can compare how the base test class for nats changed > between 3.6.x [1] and 3.7.x [2]. > > The first conversion step is to replace the camel-testcontainer > dependencies [3] with the ones from the test-infra module [4]. Then, it's > necessary to replace the container handling code and the old base class [5] > with the service provided in the module. It's important to register it as a > JUnit 5 extension [6]. Then, we replace the ContainerAwareTestSupport (and > similar classes from other camel-testcontainer modules) with > CamelTestSupport (or the spring based one) as it is not needed anymore. > > The next step is to make sure that addresses (URLs, hostnames, ports, etc) > and resources (usernames, passwords, tokens, etc) referenced during the > test execution, use the test-infra services. This may differ according to > each service. Replacing the call to get the service URL [7] with the one > provided by the test infra service [8] is a good example of this. > > This was the bulk of the work for the Camel code base. > > There are a few other cases which may require extra attention/work. They > were not so common, but to highlight: > > - It may be necessary to adjust the variables used in simple language [9] > so that they match the property format used in the test infra service [10] > (as was the case for camel-consul). > - There are some cases where the container instance requires extra > customization [11]. The code still benefits from the test-infra approach, > but this may be very specific to the test scenario [12] . > > All in all, it's not a significantly complicated task but it's not a > drop-in replacement either. > > I am linking here to the PR which I submitted for the camel-nats conversion > [13] just in case I missed anything. At first sight it may look more > complicated than what I said, but that's because it also contains the > test-infra code for Nats. > > 1. > > https://github.com/apache/camel/blob/camel-3.6.0/components/camel-nats/src/test/java/org/apache/camel/component/nats/NatsTestSupport.java > 2. > > https://github.com/apache/camel/blob/camel-3.7.0/components/camel-nats/src/test/java/org/apache/camel/component/nats/NatsTestSupport.java > 3. > > https://github.com/apache/camel/blob/camel-3.6.0/components/camel-nats/pom.xml#L59-L63 > 4. > > https://github.com/apache/camel/blob/camel-3.7.0/components/camel-nats/pom.xml#L61-L75 > 5. > > https://github.com/apache/camel/blob/camel-3.6.0/components/camel-nats/src/test/java/org/apache/camel/component/nats/NatsTestSupport.java#L24-L45 > 6. > > https://github.com/apache/camel/blob/camel-3.7.0/components/camel-nats/src/test/java/org/apache/camel/component/nats/NatsTestSupport.java#L25-L27 > 7. > > https://github.com/apache/camel/blob/camel-3.6.0/components/camel-nats/src/test/java/org/apache/camel/component/nats/NatsAuthConsumerLoadTest.java#L38 > 8. > > https://github.com/apache/camel/blob/camel-3.7.0/components/camel-nats/src/test/java/org/apache/camel/component/nats/NatsAuthConsumerLoadTest.java#L38 > 9. > > https://github.com/apache/camel/blob/camel-3.6.0/components/camel-consul/src/test/resources/org/apache/camel/component/consul/cloud/SpringConsulRibbonServiceCallRouteTest.xml#L36 > 10. > > https://github.com/apache/camel/blob/camel-3.7.0/components/camel-consul/src/test/resources/org/apache/camel/component/consul/cloud/SpringConsulRibbonServiceCallRouteTest.xml#L36 > 11. > > https://github.com/apache/camel/blob/camel-3.6.0/components/camel-pg-replication-slot/src/test/java/org/apache/camel/component/pg/replication/slot/integration/PgReplicationTestSupport.java#L31 > 12. > > https://github.com/apache/camel/blob/camel-3.7.0/components/camel-pg-replication-slot/src/test/java/org/apache/camel/component/pg/replication/slot/integration/PgReplicationTestSupport.java#L31 > 13. https://github.com/apache/camel/pull/4706/files > > On Tue, Jan 5, 2021 at 10:36 AM Claus Ibsen <claus.ib...@gmail.com> wrote: > > > Hi Otavia > > > > Great work. > > > > Can you maybe tell a bit about what if an end user have used > > camel-testcontainers-junit5 to do his/her own container testing with > > Camel (for example to use their own container image, or for example a > > database container or something). How would they do that today with > > the test infra? > > > > > > On Tue, Jan 5, 2021 at 9:37 AM Otavio Rodolfo Piske > > <angusyo...@gmail.com> wrote: > > > > > > Hello, > > > > > > as of 3.7.x, all the test infrastructure code that we had was converted > > to > > > use the test-infra modules. > > > > > > This brings several benefits for in terms of maintenance for the test > > code: > > > - we can share more easily, among the sub-projects, the code handling > the > > > test infrastructure. For example: setting up and running message > brokers, > > > databases, cloud simulation containers, etc. > > > - we "outsource" the management of the resources to JUnit 5 and let it > > > handle the lifecycle, setup, etc ... thus simplifying the test code. > > > - we can separate the interface from implementation. This allows us and > > > colleagues running and testing the Camel code to run integration and > > > interoperability tests more easily. For example, it makes it possible > to > > > run the same tests against remote instances of the said infrastructure. > > > This is very handy for AWS tests, for example, where we can switch to > run > > > the tests from Localstack containers to an actual AWS instance by > simply > > > adjusting the test parameters. It still uses testcontainers under the > > hood, > > > but it is abstracted from the test code. > > > > > > As result of this migration, the code in the following components has > > > become unused within Camel: > > > - camel-testcontainers > > > - camel-testcontainers-junit5 > > > - camel-testcontainers-spring > > > - camel-testcontainers-spring-junit5 > > > > > > I'd like to propose deprecating these components, starting with 3.8 and > > > then removing them before we release the next LTS. > > > > > > Therefore, I'd like to gather feedback from the community about usage > of > > > those modules, thoughts on the idea and if any roadblock remains. > > > > > > Kind regards > > > -- > > > Otavio R. Piske > > > http://orpiske.net > > > > > > > > -- > > Claus Ibsen > > ----------------- > > http://davsclaus.com @davsclaus > > Camel in Action 2: https://www.manning.com/ibsen2 > > > > > -- > Otavio R. Piske > http://orpiske.net >
