hensei-api/docs/rspec-test-analysis.md

RSpec Test Suite Analysis

Executive Summary

The hensei-api project has a partial test suite with significant coverage gaps. While the existing tests demonstrate good practices and patterns, only about 35% of models and 33% of controllers have test coverage. The test suite contains 36 spec files with approximately 3,713 lines of test code.

Test Coverage Overview

Current State

• Total Spec Files: 36
• Total Test Lines: ~3,713 lines
• SimpleCov: Configured but basic setup only
• CI/CD: No CI configuration detected (.github, .gitlab-ci, .circleci)

Coverage by Component

Models (8/23 = 35% coverage)

Tested Models:

• gacha_spec.rb
• grid_characters_spec.rb
• grid_summons_spec.rb
• grid_weapon_spec.rb
• party_spec.rb
• user_spec.rb (contains only pending example)
• weapon_key_spec.rb
• weapon_spec.rb

Missing Tests (15 models):

• app_update
• application_record
• awakening
• character
• data_version
• favorite
• grid_character (note: grid_characters_spec exists)
• grid_summon (note: grid_summons_spec exists)
• guidebook
• job
• job_accessory
• job_skill
• raid
• raid_group
• summon
• weapon_awakening

Controllers/Requests (8/24 = 33% coverage)

Tested Endpoints:

• drag_drop_api_spec.rb
• drag_drop_endpoints_spec.rb
• grid_characters_controller_spec.rb
• grid_summons_controller_spec.rb
• grid_weapons_controller_spec.rb
• import_controller_spec.rb
• job_skills_spec.rb
• parties_controller_spec.rb

Controller Concerns:

• party_authorization_concern_spec.rb
• party_querying_concern_spec.rb

Services (5 tested)

• party_query_builder_spec.rb
• processors/base_processor_spec.rb
• processors/character_processor_spec.rb
• processors/job_processor_spec.rb
• processors/summon_processor_spec.rb
• processors/weapon_processor_spec.rb

Test Quality Assessment

Strengths

1. Well-Structured Tests

   • Clear describe/context/it blocks
   • Good use of RSpec conventions
   • Descriptive test names

2. Comprehensive Validation Testing

   # Example from party_spec.rb
   context 'for element' do
     it 'is valid when element is nil'
     it 'is valid when element is one of the allowed values'
     it 'is invalid when element is not one of the allowed values'
     it 'is invalid when element is not an integer'
   end
   

3. Good Factory Usage

   • FactoryBot configured with appropriate defaults
   • Uses Faker for realistic test data
   • Sequences for unique values

4. Authorization Testing

   • Tests for both authenticated and anonymous users
   • Edit key validation for anonymous parties
   • Owner vs non-owner permission checks

5. Request Specs Follow Best Practices

   • Full request cycle testing
   • JSON response parsing
   • HTTP status code verification
   • Database change expectations

Weaknesses

1. Low Coverage

   • 65% of models untested
   • 67% of controllers untested
   • Critical models like Character, Summon, Job lack tests

2. Incomplete Test Files

   • user_spec.rb contains only: pending "add some examples"
   • No actual tests for User model despite it being central to authentication

3. Missing Integration Tests

   • No end-to-end workflow tests
   • No tests for complex multi-model interactions
   • Missing tests for background jobs

4. No Performance Tests

   • No tests for query optimization
   • No load testing for endpoints
   • No N+1 query detection

5. Limited Error Scenario Testing

   • Few tests for error handling
   • Missing edge case coverage
   • Limited testing of failure scenarios

Test Patterns and Conventions

Model Tests Pattern

RSpec.describe Model, type: :model do
  # Association tests
  it { is_expected.to belong_to(:related_model) }

  # Validation tests
  describe 'validations' do
    it { should validate_presence_of(:field) }
    it { should validate_numericality_of(:number_field) }
  end

  # Custom method tests
  describe '#custom_method' do
    # Test implementation
  end
end

Request Tests Pattern

RSpec.describe 'API Endpoint', type: :request do
  let(:user) { create(:user) }
  let(:access_token) { create_doorkeeper_token(user) }
  let(:headers) { auth_headers(access_token) }

  describe 'POST /endpoint' do
    it 'creates resource' do
      expect { post '/api/v1/endpoint', params: params, headers: headers }
        .to change(Model, :count).by(1)
      expect(response).to have_http_status(:created)
    end
  end
end

Critical Gaps

High Priority Missing Tests

1. Authentication & Authorization

   • User model specs incomplete
   • No tests for OAuth/Doorkeeper integration
   • Missing role-based access control tests

2. Core Domain Models

   • Character model (central to parties)
   • Summon model (key grid component)
   • Weapon/Awakening models
   • Job and JobSkill models

3. Data Import/Export

   • Limited import controller testing
   • No export functionality tests
   • Missing validation for imported data

4. Collection Features

   • No tests for planned collection tracking
   • Missing artifact system tests
   • No crew feature tests

Recommendations

Immediate Actions

1. Complete User Model Tests

   • Replace pending example with actual tests
   • Test authentication methods
   • Test associations and validations

2. Add Core Model Tests

   • Priority: Character, Summon, Job models
   • Focus on validations and associations
   • Test business logic methods

3. Implement CI/CD

   • Set up GitHub Actions or GitLab CI
   • Run tests on every PR
   • Add coverage reporting

Short-term Improvements

1. Increase Coverage Target

   • Aim for 80% model coverage
   • Aim for 70% controller coverage
   • Use SimpleCov to track progress

2. Add Integration Tests

   • Test complete user workflows
   • Test party creation with all components
   • Test import/export flows

3. Implement Test Helpers

   • Create shared examples for common patterns
   • Add custom matchers for domain logic
   • Build test data builders for complex scenarios

Long-term Goals

1. Comprehensive Test Suite

   • Achieve 90%+ code coverage
   • Add performance test suite
   • Implement mutation testing

2. Test Documentation

   • Document testing conventions
   • Create testing guidelines
   • Maintain test writing standards

3. Automated Quality Checks

   • Pre-commit hooks for tests
   • Automated coverage reporting
   • Test quality metrics tracking

Conclusion

The current test suite provides a solid foundation with good patterns and practices, but significant gaps exist in coverage. The testing infrastructure (FactoryBot, RSpec configuration) is well-set up, making it straightforward to add missing tests. Priority should be given to testing core domain models and implementing CI/CD to ensure test execution on every code change.