[CAMEL-15755] Spring Boot tests broken when using TestInstance.Lifecycle.PER_CLASS

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Abandoned
• Affects Version/s: 3.6.0
• Fix Version/s: 3.x
• Component/s: camel-spring, camel-test
• Estimated Complexity: Unknown
• Assignee: Unassigned
• Reporter: Alex Arana
• Created: 25/Oct/20 12:37
• Updated: 02/Sep/22 17:17
• Resolved: 02/Sep/22 17:17

Description

After upgrading to 3.6.0 existing Spring Boot tests in my codebase started to fail. After some investigation I discovered that this is due to my unit tests having a single instance per class as configured using JUnit's 

@TestInstance(TestInstance.Lifecycle.PER_CLASS)

Some changes were introduced in a recent commit that affected the existing behaviour in CamelSpringBootExecutionListener: https://github.com/apache/camel/commit/efc34ab2b98f3697ebb482cf1645fda6f0794797

I have remediated my tests by running the following code in a JUnit BeforeEach method within a base test class:

// Kotlin
@BeforeEach
fun init() {
    SpringCamelContext.setNoStart(false)
    camelContext.start()
}

I am currently looking for a more permanent solution to this issue that properly supports single instance JUnit5 Test classes.