Add comprehensive test suite with 97% code coverage

Implemented full test coverage for core bot components:

Test Coverage:
- MentionDetector: 98% (28 tests) - mention detection, nickname handling, content extraction
- Logger: 98% (15 tests) - file logging, log levels, unicode support
- ConversationMemory: 91% (25 tests) - history management, time filtering, JSON persistence
- PerplexityProvider: 100% (22 tests) - API calls, error handling, statistics
- Config: 100% (26 tests) - env loading, validation, JSON config

Infrastructure:
- Added pytest, pytest-asyncio, pytest-mock, pytest-cov to requirements.txt
- Created pytest.ini with coverage configuration
- Created .coveragerc to exclude non-production files
- Added conftest.py with shared fixtures and test isolation

Test Features:
- 116 total tests, all passing
- Isolated test environment (clean env vars, logging handlers)
- Async testing support for PerplexityProvider
- Mocked HTTP requests to avoid real API calls
- Comprehensive edge case coverage
- Unicode/German character support testing

Total: 97% code coverage across 273 statements

2026-01-02 22:10:14 +00:00

2.9 KiB

Raw Blame History

Test Suite for Eugen Twitch Bot

Comprehensive test coverage for the Eugen bot components.

Test Coverage

Overall: 97% code coverage

Components Tested

MentionDetector (utils.py) - 98% coverage
- Explicit mentions (@Eugen, Eugen:, etc.)
- Nickname detection and generation
- Ambiguous greeting detection
- Content extraction
- Edge cases and unicode support
Logger (utils.py) - 98% coverage
- File-based logging
- Log levels (INFO, DEBUG, ERROR, WARNING)
- API call logging
- Unicode character support
ConversationMemory (memory.py) - 91% coverage
- User history storage and retrieval
- Time-based message filtering
- Message limits enforcement
- JSON persistence
- Error handling
PerplexityProvider (ai_provider.py) - 100% coverage
- API request/response handling
- Error handling (timeouts, network errors, HTTP errors)
- Statistics tracking
- API key validation
Config (config.py) - 100% coverage
- Environment variable loading
- JSON configuration
- Validation
- Default values

Running Tests

Run all tests

pytest tests/

Run with coverage report

pytest tests/ --cov=. --cov-report=term-missing

Run specific test file

pytest tests/test_utils.py
pytest tests/test_memory.py
pytest tests/test_ai_provider.py
pytest tests/test_config.py

Run specific test

pytest tests/test_utils.py::TestMentionDetector::test_mention_with_at_symbol

Test Structure

tests/
├── __init__.py              # Package marker
├── conftest.py              # Shared fixtures and test configuration
├── test_utils.py            # Tests for MentionDetector and Logger
├── test_memory.py           # Tests for ConversationMemory
├── test_ai_provider.py      # Tests for PerplexityProvider
└── test_config.py           # Tests for Config

Key Features

Test Isolation: Each test runs in a clean environment with:
- Isolated environment variables
- Clean logging handlers
- Temporary directories for file operations
Async Testing: Full support for async/await with pytest-asyncio
Mocking: HTTP requests mocked using pytest-mock to avoid real API calls
Fixtures: Reusable test data in conftest.py:
- temp_dir: Temporary directory with automatic cleanup
- mock_env_file: Sample .env file
- mock_config_json: Sample config.json
- sample_conversation_history: Test chat history
- mock_perplexity_response: Sample API response

Test Statistics

Total Tests: 116
Passing: 116 (100%)
Code Coverage: 97%
Test Execution Time: ~1.2 seconds

Coverage Gaps

The 3% uncovered code consists of:

Error handling edge cases in memory.py (lines 92-94, 111-112, 143-144)
Rarely-used utility functions in utils.py (lines 101, 165)

These are defensive code paths that are difficult to trigger in tests.

2.9 KiB Raw Blame History