[FIXED] SpringCloud 2020.0.2 upgrade generates testing error

Issue

I'm trying to upgrade a project from SpringCloud BOM 2020.0.1 to 2020.0.2

When I change the BOM and re-build, I get an error in JUnit tests, saying that the new parameter spring.config.import is not set for configserver.

This project is not a ConfigServer, neither use ConfigServer (commented config client)

This is the reported error in tests contextLoads()

java.lang.IllegalStateException: Failed to load ApplicationContext
    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:132)
    at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:124)
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:118)
    .. Many more
Caused by: org.springframework.cloud.config.client.ConfigServerConfigDataMissingEnvironmentPostProcessor$ImportException: No spring.config.import set
    at org.springframework.cloud.config.client.ConfigServerConfigDataMissingEnvironmentPostProcessor.postProcessEnvironment(ConfigServerConfigDataMissingEnvironmentPostProcessor.java:60)
    at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEnvironmentPreparedEvent(EnvironmentPostProcessorApplicationListener.java:100)
    at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEvent(EnvironmentPostProcessorApplicationListener.java:86)
    ... Many more

This is my build.gradle

plugins {
    id 'org.springframework.boot' version '2.4.2'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'java'
}

group = 'com.example.microservices.composite.product'
version = '1.0.0-SNAPSHOT'
sourceCompatibility = '1.8'

repositories {
    mavenCentral()
    maven {
        url 'https://repo.spring.io/milestone'
    }
}

ext {
   // resilience4jVersion = "1.7.0"
   resilience4jVersion = "1.6.1"

}

dependencies {
    // Local projects dependencies
    implementation project(':api')
    implementation project(':util') 

    // Implementations dependencies
    // Standard (actuator - for monitoring and Health)  
    implementation 'org.springframework.boot:spring-boot-starter-actuator'
    // WebFlux (asynchronous Web)
    implementation 'org.springframework.boot:spring-boot-starter-webflux'

    // SpringFox dependencies
    implementation "io.springfox:springfox-boot-starter:3+"
    implementation('io.springfox:springfox-spring-webflux:3+')

    // Implementation: Spring cloud
    implementation('org.springframework.cloud:spring-cloud-starter-config')
    implementation('org.springframework.cloud:spring-cloud-starter-stream-rabbit')
    implementation('org.springframework.cloud:spring-cloud-starter-stream-kafka')

    // Security
    implementation('org.springframework.boot:spring-boot-starter-security')
    implementation('org.springframework.security:spring-security-oauth2-resource-server')
    implementation('org.springframework.security:spring-security-oauth2-jose')

    // CircuitBreaker with Resilience4J
    implementation("io.github.resilience4j:resilience4j-spring-boot2:${resilience4jVersion}")
    implementation("io.github.resilience4j:resilience4j-reactor:${resilience4jVersion}")
  
    // Implementation: Tracing
    implementation('org.springframework.cloud:spring-cloud-starter-sleuth') 

    // Implementation: Performance metrics
    implementation("io.micrometer:micrometer-registry-prometheus")
    
    // TEST dependencies
    testImplementation('org.springframework.boot:spring-boot-starter-test') {
        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }
    testImplementation 'io.projectreactor:reactor-test'
    testImplementation('org.springframework.cloud:spring-cloud-stream-test-support')

}


dependencyManagement {
    imports {
        // mavenBom 'org.springframework.cloud:spring-cloud-dependencies:2020.0.1'
        mavenBom "org.springframework.cloud:spring-cloud-dependencies:2020.0.2"
    }
}

test {
    useJUnitPlatform()
}

And my contextLoads() method in test class is trivial

// Test: Application
@AutoConfigureWebTestClient
@SpringBootTest(
    webEnvironment = WebEnvironment.RANDOM_PORT, 
    classes = { 
        ProductCompositeServiceApplication.class,
        TestSecurityConfig.class }, 
    properties = { 
        "spring.main.allow-bean-definition-overriding=true" })

    @Test
    public void contextLoads() {
    }
}

NOTE: I have also tried defining the `spring.config.import' property to empty or none in the class, with no change

@SpringBootTest(
    webEnvironment = WebEnvironment.RANDOM_PORT, 
    classes = { 
        ProductCompositeServiceApplication.class,
        TestSecurityConfig.class }, 
    properties = { 
        "spring.main.allow-bean-definition-overriding=true",
        "spring.config.import=" })

Solution

I have noted the same problem after upgrading to SpringCloud 2020.0.2

Adding spring.cloud.config.enabled=false in the tests solved the issue.

E.g.:

@SpringBootTest(
  webEnvironment = RANDOM_PORT, 
  properties = {"spring.cloud.config.enabled=false"}
)

Answered By - Magnus Larsson
Answer Checked By - Candace Johnson (JavaFixing Volunteer)