Spring Boot 2

Spring Boot Plugins

• The below plugin dependencies are the ones responsible for treating this project as a spring boot project.

plugins {
	id 'org.springframework.boot' version '2.2.0.RELEASE'
	id 'io.spring.dependency-management' version '1.0.8.RELEASE'
	id 'java'
}

Junit 5

• Junit5 information is available in this link

Slice Testing

• This is the kind of testing where you slice the application context and use that for your test

@WebMvcTest // This just tests the controller later

• More info about slice based annotations are available in the below link.

https://docs.spring.io/spring-boot/docs/current/reference/html/appendix-test-auto-configuration.html#test-auto-configuration

Actuator

• Add the below dependency for the actuator.

implementation 'org.springframework.boot:spring-boot-starter-actuator'

• More info about actuator is available in the below link.

https://docs.spring.io/spring-boot/docs/current/reference/html/production-ready-features.html#production-ready-enabling

-Customizing the default actuator behavior

management:
  endpoints:
    enabled-by-default: true
    web:
      exposure:
        include: "*" # This exposes all the endpoints to the actuator
      base-path: "/manage" #This is the base endpoint for the actuator.

Testing Spring Boot Applications

Testing Spring Boot Deck

MockRestServiceServer

• This works only for the RestTemplate.
• If you using Spring WebClient then use WireMock or OkHttps's MockWebServer

Spring Data JPA

• The below configuration displays the sql queries with the bind parameters in the console.

spring.jpa.show-sql: true
logging.level.org.hibernate.SQL: debug
logging.level.org.hibernate.type.descriptor.sql: trace