Testing Standards and Practices

Core Principles

• Write tests for all new features
• Follow AAA pattern: Arrange, Act, Assert
• Use descriptive test names: "should do X when Y"
• CRITICAL: Never use fixed time waits - tests must be deterministic
• CRITICAL: Use faker library (@faker-js/faker) for test data

Test Organization

describe('FeatureService', () => {
  describe('findById', () => {
    it('should return entity when found', () => {});
    it('should throw NotFoundException when not found', () => {});
  });