Log JUnit ClassOrderer Random Seed with Spring Boot and Logback

Question

I am trying to log the JUnit ClassOrderer random seed using Logback, Spring Boot and Gradle. I found How can I make my JUnit tests run in random order? as related to my problem, but it uses the JUL framework for logging rather than Logback.

I am expecting the following output from ./gradlew clean test, but it does not appear with my configuration below:

Gradle Test Executor 2 STANDARD_ERROR
Apr 06, 2024 3:59:00 PM org.junit.jupiter.api.ClassOrderer$Random <clinit>
CONFIG: ClassOrderer.Random default seed: 5480048958461
Apr 06, 2024 3:59:00 PM org.junit.jupiter.api.MethodOrderer$Random <clinit>
CONFIG: MethodOrderer.Random default seed: 5480082278753

Can someone spot the problem?

build.gradle file

    plugins {
      id("org.springframework.boot") version "3.2.4"
      id("io.spring.dependency-management") version "1.1.4"
      kotlin("jvm") version "1.9.23"
      kotlin("plugin.spring") version "1.9.23"
    }


    dependencies {
      implementation("org.springframework.boot:spring-boot-starter-web")
    

      testImplementation("org.springframework.boot:spring-boot-starter-test")
      testImplementation("org.testcontainers:junit-jupiter")
    }


    tasks.withType<Test> {
      useJUnitPlatform()

      testLogging {
        events("passed", "skipped", "failed", "standardOut", "standardError")
      }
    }

src/test/resources/logback-spring.xml file

    <?xml version="1.0" encoding="UTF-8"?>
    <configuration debug="true">
      <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
      <include resource="org/springframework/boot/logging/logback/console-appender.xml" />
      <root level="DEBUG">
        <appender-ref ref="CONSOLE" />
      </root>
      <!-- According to https://jira.qos.ch/browse/LOGBACK-1612 DEBUG should include JUL CONFIG -->
      <!-- Name property based on https://github.com/junit-team/junit5/blob/main/junit-jupiter-api/src/main/java/org/junit/jupiter/api/MethodOrderer.java -->
      <logger name="org.junit.jupiter.api.ClassOrderer$Random" level="DEBUG"/>
      <logger name="org.junit.jupiter.api.MethodOrderer$Random" level="DEBUG"/>
    </configuration>

src/test/resources/junit-platform.properties file

    junit.jupiter.testmethod.order.default = org.junit.jupiter.api.MethodOrderer$Random
    junit.jupiter.testclass.order.default = org.junit.jupiter.api.ClassOrderer$Random

I also tried setting "logging.config" and "logback.configurationFile" in systemProperties via Gradle without success:

tasks.withType<Test> {
  systemProperties(
    "logging.config" to file("src/test/resources/logback-spring.xml")
    "logback.configurationFile" to file("src/test/resources/logback-spring.xml")
   )
   // To print the JUnit logs in console
   testLogging {
     events("passed", "skipped", "failed", "standardOut", "standardError")
   }
}

Brinker