Spring Boot Testing

Tech Stack

• Spring Boot
• JUnit for unit and integration testing
• Mockito for mocking dependencies
• AssertJ for fluent assertions
• Kafka for messaging
• PostgreSQL for database integration
• MongoDB for NoSQL database integration
• Docker and Docker Compose for service orchestration

Test Coverage

This repository contains multiple Spring Boot projects and:

• Over 250 unit and integration tests covering various Spring Boot components.

• Tests for native queries using both JDBC and R2DBC.

• Thorough testing of security, Kafka configurations, and reactive components.

• It is not intended for production use but can be used as a reference for developing robust test suites in real projects.

  Native Query Tests for Jdbc and R2dbc
  Service Method Unit Tests/ Itegration Tests
  WebMvc Tests
  WebFlux Test
  Kafka Configuration Tests
  Security Configurations Tests
  JPA Auditing Tests
  

Using common testing utilities,

Mockito
JUnit, AssertJ
mockMvc, Webclient
Mockito Argument Matchers
Bean Mocking, Object Mocking
Injecting Authentication
Multipart Controllers
StepVerifier, ArgumentCaptor
Testing Reactive metnods and Controllers

And more

Known Issues

• Some tests may take longer when running with large datasets in the PostgreSQL service.
• Reactive WebFlux tests may require tuning depending on the machine's processing power.

---

Setup Instructions

Prerequisites

• Java 17+
• Maven/Gradle
• Docker and Docker Compose

Run the Tests

Use the docker-compose.yml file to set up the necessary infrastructure for testing:

version: '3.8'

services:
  postgres:
    container_name: postgres
    image: postgres
    environment:
      POSTGRES_USER: username
      POSTGRES_PASSWORD: password
    volumes:
      - postgres:/var/lib/postgresql/data  
    ports:
      - "5432:5432"
    restart: unless-stopped
    networks:
      - TestingNetwork

  mongodb:
    image: mongo:latest
    container_name: mongodb
    ports:
      - "27017:27017"
    environment:
      MONGO_INITDB_DATABASE: demo
    volumes:
      - mongo-data:/data/db
    networks:
      - TestingNetwork

  zookeeper:
    image: confluentinc/cp-zookeeper:latest
    container_name: ReelsOrbit-zookeeper
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    networks:
      - TestingNetwork

  kafka:
    image: confluentinc/cp-kafka:latest
    container_name: ReelsOrbit-kafka
    ports:
      - "9092:9092"
    depends_on:
      - zookeeper
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_INTERNAL:PLAINTEXT
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:9092,PLAINTEXT_INTERNAL://ReelsOrbit-kafka:29092
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
    networks:
      - TestingNetwork

  mail-dev:
    container_name: ReelsOrbit-mail
    image: maildev/maildev
    ports:
      - "1080:1080"
      - "1025:1025"

volumes:
  mongo-data:
  postgres:

networks:
  TestingNetwork:
    driver: bridge