CodeRabbit Generated Unit Tests: Add 65 unit tests for CLI, coordinator, and configuration

TEST_SUMMARY.md

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+# Comprehensive Test Coverage Summary
+
+This document summarizes the comprehensive test suite generated for the cortex-linux project.
+
+## Overview
+
+Total tests added: **65 new tests** across 3 new test files
+Total project tests: **161 tests** (including existing tests)
+
+## New Test Files Created
+
+### 1. cortex/test_cli_additional.py (17 tests)
+Comprehensive additional tests for the CLI covering edge cases and scenarios not covered by the original test suite.
+
+#### Test Categories:
+- **API Key Management (3 tests)**
+  - `test_get_api_key_both_set_prefers_openai`: Validates OpenAI key preference when both keys are set
+  - `test_get_provider_both_set_prefers_openai`: Validates provider selection with multiple keys
+  - `test_get_provider_no_keys_defaults_openai`: Tests default provider behavior
+
+- **Spinner Animation (2 tests)**
+  - `test_spinner_wraps_around`: Tests spinner index wraparound
+  - `test_spinner_increments_correctly`: Tests spinner progression through all characters
+
+- **UI Output (1 test)**
+  - `test_clear_line_writes_escape_sequence`: Validates terminal escape sequence output
+
+- **Progress Callback Integration (3 tests)**
+  - `test_install_progress_callback_success_status`: Tests callback SUCCESS status
+  - `test_install_progress_callback_failed_status`: Tests callback with FAILED status
+  - `test_install_progress_callback_pending_status`: Tests callback with PENDING status
+
+- **Error Handling (2 tests)**
+  - `test_install_with_execute_failure_no_error_message`: Tests failure handling without error message
+  - `test_install_with_execute_failure_no_failed_step`: Tests failure handling without failed step index
+
+- **Provider Integration (1 test)**
+  - `test_install_with_claude_provider`: Tests Claude provider usage
+
+- **CLI Arguments (3 tests)**
+  - `test_main_install_both_execute_and_dry_run`: Tests combined flags
+  - `test_main_install_complex_software_name`: Tests multi-word software names
+  - `test_main_help_flag`: Tests help flag behavior
+
+- **Edge Cases (2 tests)**
+  - `test_cli_initialization_spinner_chars`: Tests CLI initialization
+  - `test_install_empty_software_name`: Tests empty software name handling
+
+### 2. cortex/test_coordinator_additional.py (17 tests)
+Comprehensive additional tests for the InstallationCoordinator covering complex execution scenarios and error conditions.
+
+#### Test Categories:
+- **Timeout Handling (2 tests)**
+  - `test_execute_command_timeout_expired`: Tests subprocess.TimeoutExpired exception
+  - `test_custom_timeout_value`: Tests custom timeout values
+
+- **Rollback Functionality (5 tests)**
+  - `test_rollback_with_no_commands`: Tests rollback with no registered commands
+  - `test_rollback_with_multiple_commands`: Tests multiple rollback commands in reverse order
+  - `test_rollback_command_failure`: Tests rollback continuation on command failure
+  - `test_rollback_disabled`: Tests that rollback doesn't execute when disabled
+
+- **Installation Verification (3 tests)**
+  - `test_verify_installation_with_failures`: Tests verification with mixed success/failure
+  - `test_verify_installation_with_exception`: Tests verification exception handling
+  - `test_verify_installation_timeout`: Tests verification timeout handling
+
+- **Summary and Logging (3 tests)**
+  - `test_get_summary_with_mixed_statuses`: Tests summary with mixed step statuses
+  - `test_log_file_write_error_handling`: Tests graceful handling of log write errors
+  - `test_export_log_creates_valid_json`: Tests JSON export validity
+
+- **Edge Cases (4 tests)**
+  - `test_empty_commands_list`: Tests coordinator with no commands
+  - `test_step_return_code_captured`: Tests return code capture
+  - `test_step_output_and_error_captured`: Tests stdout/stderr capture
+  - `test_step_duration_not_calculated_without_times`: Tests duration calculation edge case
+  - `test_installation_result_with_no_failure`: Tests result when all steps succeed
+
+### 3. test_setup_and_config.py (31 tests)
+Comprehensive validation tests for project configuration files and package structure.
+
+#### Test Categories:
+- **Setup.py Validation (9 tests)**
+  - File existence and readability
+  - Required fields validation
+  - Package name verification
+  - Entry points validation
+  - Dependency file checks
+
+- **Gitignore Configuration (5 tests)**
+  - File existence
+  - Python-specific patterns
+  - Virtual environment patterns
+  - Test coverage patterns
+  - Format validation
+
+- **MANIFEST.in Configuration (7 tests)**
+  - File existence
+  - README inclusion
+  - LICENSE inclusion
+  - Python files inclusion
+  - Package inclusions (LLM, cortex)
+  - Format validation
+
+- **LICENSE File (3 tests)**
+  - File existence
+  - Readability
+  - Copyright information presence
+
+- **Package Structure (7 tests)**
+  - Package directory existence
+  - `__init__.py` files
+  - Version definitions
+  - Import statements
+  - Test file discoverability
+
+## Test Coverage by Component
+
+### CLI (cortex/cli.py)
+- **Original tests**: 22
+- **Additional tests**: 17
+- **Total coverage**: 39 tests
+- **Coverage areas**: API key management, provider selection, installation flow, error handling, progress callbacks, spinner animation, UI output
+
+### Coordinator (cortex/coordinator.py)
+- **Original tests**: 20
+- **Additional tests**: 17
+- **Total coverage**: 37 tests
+- **Coverage areas**: Command execution, timeout handling, rollback functionality, verification, logging, summary generation, edge cases
+
+### Configuration Files
+- **New tests**: 31 tests
+- **Coverage areas**: setup.py, .gitignore, MANIFEST.in, LICENSE, package structure
+
+## Key Testing Patterns Used
+
+1. **Mocking External Dependencies**: All tests use unittest.mock to isolate components
+2. **Environment Variable Testing**: Extensive use of @patch.dict for environment testing
+3. **Edge Case Coverage**: Tests for empty inputs, missing data, and error conditions
+4. **Integration Testing**: Progress callbacks and coordinator-CLI integration
+5. **Configuration Validation**: File format and content validation
+
+## Test Execution
+
+All tests can be executed using:
+
+```bash
+# Run all tests
+python -m unittest discover -s . -p "test_*.py"
+
+# Run specific test file
+python -m unittest cortex.test_cli_additional
+python -m unittest cortex.test_coordinator_additional
+python -m unittest test_setup_and_config
+
+# Run with verbose output
+python -m unittest discover -s . -p "test_*.py" -v
+```
+
+## Test Quality Assurance
+
+✓ All test files successfully import
+✓ All tests follow unittest conventions
+✓ Descriptive test names and docstrings
+✓ Comprehensive mocking of external dependencies
+✓ Edge case and error condition coverage
+✓ Integration test scenarios included
+✓ Configuration validation tests included
+
+## Coverage Improvements
+
+The new tests significantly improve coverage by:
+
+1. **API Key Priority**: Testing behavior when multiple API keys are set
+2. **Timeout Handling**: Explicit testing of subprocess.TimeoutExpired
+3. **Rollback Scenarios**: Multiple rollback commands and failure handling
+4. **Verification Failures**: Testing verification command failures and timeouts
+5. **Progress Callbacks**: Testing all status types in callback functions
+6. **Configuration Validation**: Ensuring package structure and configs are correct
+7. **Edge Cases**: Empty inputs, missing files, format validation
+
+## Recommendations
+
+1. Consider adding integration tests that actually execute commands (in a controlled environment)
+2. Add performance benchmarking tests for large command sequences
+3. Consider property-based testing with hypothesis for input validation
+4. Add tests for concurrent execution if that's a future feature
+5. Consider mutation testing to verify test effectiveness
+
+## Conclusion
+
+This comprehensive test suite provides extensive coverage of:
+- Happy path scenarios
+- Edge cases and boundary conditions
+- Error handling and recovery
+- Configuration validation
+- Integration between components
+- UI and user interaction
+
+The tests are maintainable, well-documented, and follow Python testing best practices.