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  1. camunda BPM
  2. CAM-9452

Testing Spring Boot Applications: Support application context caching

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    Description

      Scenario:

      • I use the Camunda Spring Boot Starter with @EnableProcessApplication to use processes.xml for deployment
      • I write a test as follows
      package my.package;

import org.camunda.bpm.engine.RuntimeService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.ActiveProfiles;
import org.springframework.test.context.junit4.SpringRunner;
import static org.assertj.core.api.Assertions.assertThat;

@RunWith(SpringRunner.class)
@SpringBootTest
@ActiveProfiles("test")
public class MyTest {

    @Autowired
    private RuntimeService runtimeService;

    @Test
    public void test() {
        // do 
        runtimeService....;
    }
}

      Desired behavior:

      • Spring's test runner caches application context's by default grouped by test configuration. Under the assumption that a test has no side-effects (read: does not modify the application context or any embedded resources), the context can be safely reused in another test if the test has the exact same configuration. This speeds up test runtime.

      Current behavior:

      • When using context caching and there is more than one application context (e.g. because we have tests that use two different configurations; however the process engine configuration is the same), then the creation of the second context fails
      • The problem is that we then have two process engines with the same name at the same time. The second SpringBootProcessApplication bean tries to register its engine with the MBean container and an exception is raised.
      • In consequence, users must avoid to have multiple engines with the same name (e.g. by avoiding that there are two application contexts at the same time via @DirtiesContext or by ensuring unique engine names (which does not work well with processes.xml))

      mgm-controller-panel

        This is the controller panel for Smart Panels app

        Attachments

          Issue Links

            depends on

            Feature Request - A new feature of the product, which has yet to be developed. CAM-9910 I can read a testing guide for how to set up my tests with application context caching

            • L3 - Default - Minor issue or issue with existing workaround, feature requests and questions
            • Closed

            Feature Request - A new feature of the product, which has yet to be developed. CAM-9911 I can generate a random engine name on application context creation

            • L3 - Default - Minor issue or issue with existing workaround, feature requests and questions
            • Closed

            Feature Request - A new feature of the product, which has yet to be developed. CAM-9970 Spring Boot Process Applications are deployed to the default Spring Boot engine if no engine is available in processes.xml

            • L3 - Default - Minor issue or issue with existing workaround, feature requests and questions
            • Closed

            Feature Request - A new feature of the product, which has yet to be developed. CAM-9902 Minimal new deployment mechanism for the Spring Boot Starter

            • L3 - Default - Minor issue or issue with existing workaround, feature requests and questions
            • Ready
            is related to

            Task - A task that needs to be done. CAM-8117 Testing of spring boot process application

            • L3 - Default - Minor issue or issue with existing workaround, feature requests and questions
            • Closed

            Task - A task that needs to be done. CAM-10065 Evaluate application context caching when using camunda-bpm-assert

            • L3 - Default - Minor issue or issue with existing workaround, feature requests and questions
            • Closed
            links to

            Web Link https://github.com/camunda/camunda-bpm-platform/issues/2294

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              People

                Unassigned Unassigned
                thorben.lindhauer Thorben Lindhauer
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                Dates

                  Created:
                  Updated:
                  Resolved:

                  Salesforce