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Integration Testing Guide

Document Version: 1.0.0
Status: Published
Last Updated: December 3, 2025
Audience: Developers, QA
Maintained By: IoT Bay Documentation Team

Overview

Integration tests verify that different modules work together correctly, specifically the interaction between DAOs and the Database.

Tools

  • JUnit 5: Testing framework
  • H2 Database: In-memory database for testing
  • TestContainers: Docker-based integration testing (optional)

Scope

  • DAO methods (CRUD operations)
  • Database constraints and triggers
  • Transaction management

Example

@Test
void shouldSaveAndRetrieveUser() throws SQLException {
    User user = new User("test@example.com", "password");
    userDAO.save(user);
    
    User retrieved = userDAO.findByEmail("test@example.com");
    assertEquals(user.getEmail(), retrieved.getEmail());
}