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Grinta Test Plan & Coverage

Overview

This document outlines the comprehensive unit and integration tests implemented for the Grinta launcher application. The tests cover all critical functionality including fuzzy matching, concurrent operations, error handling, and cross-platform compatibility.

Test Structure

Unit Tests (src/)

Each module contains #[cfg(test)] sections with comprehensive unit tests:

1. Core Module (src/core.rs)

Coverage: Handler enum, CommandItem struct, serialization

  • test_handler_to_string() - Verifies Handler enum string representations
  • test_handler_to_icon() - Verifies Handler enum icon mappings
  • test_handler_ordering() - Tests Handler enum ordering for sorting
  • test_command_type_default() - Tests CommandType default implementation
  • test_command_item_new() - Tests CommandItem creation
  • test_command_item_mark_executed() - Tests execution timestamp marking
  • test_command_item_serialization() - Tests JSON serialization/deserialization
  • test_command_item_clone() - Tests cloning functionality
  • test_command_item_equality() - Tests equality comparison
  • test_command_item_with_metadata() - Tests metadata handling

2. History Module (src/history.rs)

Coverage: History persistence, deduplication, error handling

  • test_load_history_empty() - Tests loading empty history
  • test_save_and_load_history() - Tests history persistence
  • test_add_to_history_new_item() - Tests adding new items
  • test_add_to_history_duplicate_removal() - Tests duplicate handling
  • test_add_to_history_different_handlers() - Tests handler-based differentiation
  • test_history_file_path_creation() - Tests file path generation
  • test_load_corrupted_history() - Tests corrupted file handling
  • test_history_preserves_metadata() - Tests metadata persistence

3. State Module (src/state.rs)

Coverage: Fuzzy matching, filtering, sorting, error handling

  • test_app_state_new() - Tests AppState initialization
  • test_filter_items_empty_query() - Tests history display for empty queries
  • test_filter_items_with_query() - Tests fuzzy matching and sorting
  • test_fuzzy_matching_priority() - Tests exact match prioritization
  • test_filter_combines_all_sources() - Tests multi-source filtering
  • test_local_vs_web_priority() - Tests local vs web item prioritization
  • test_get_selected_item() - Tests item selection
  • test_error_handling() - Tests error message handling
  • test_case_insensitive_matching() - Tests case insensitivity
  • test_partial_matching() - Tests partial string matching
  • test_sort_stability() - Tests consistent sorting
  • test_mixed_handler_types() - Tests multi-handler filtering

4. File System Module (src/data_sources/fs.rs)

Coverage: Path prioritization, mdfind integration, async operations

  • test_get_path_priority() - Tests path priority algorithm
  • test_create_fs_command_file() - Tests file command creation
  • test_create_fs_command_nonexistent() - Tests nonexistent path handling
  • test_spotlight_search_*() - Tests spotlight search functions
  • test_path_priority_ordering() - Tests priority-based sorting
  • test_debounce_constants() - Tests timing constants
  • test_query_escaping() - Tests special character escaping
  • test_concurrent_file_operations() - Tests concurrent operations
  • test_case_sensitivity_in_priorities() - Tests case-insensitive priorities

5. Commands Module (src/commands.rs)

Coverage: Command execution, platform compatibility

  • test_execute_command_*() - Tests execution for all handler types
  • test_handler_consistency() - Tests handler string/icon consistency
  • test_alt_modifier_behavior() - Tests Alt key modifier handling
  • test_execute_command_error_handling() - Tests error handling
  • test_platform_specific_compilation() - Tests cross-platform compilation

6. Web Search Module (src/data_sources/web_search.rs)

Coverage: Web suggestions, URL encoding, API integration

  • test_create_suggestion_command() - Tests suggestion command creation
  • test_get_web_search_suggestions_*() - Tests API integration
  • test_*_url_encoding() - Tests URL encoding for special characters
  • test_web_search_suggestions_format() - Tests response formatting
  • test_command_type_consistency() - Tests command type handling
  • test_unicode_suggestion() - Tests Unicode support

Integration Tests (tests/)

Full Application Workflow (tests/integration_tests.rs)

Coverage: End-to-end functionality

  • test_full_application_workflow() - Tests complete app workflow
  • test_fuzzy_matching_integration() - Tests integrated fuzzy matching
  • test_error_handling_integration() - Tests error handling across modules
  • test_mixed_data_sources() - Tests multi-source data integration
  • test_concurrent_operations() - Tests concurrent task execution
  • test_command_type_variants() - Tests all command type variants

Critical Test Coverage Areas

1. Fuzzy Matching Algorithm

  • Primary sort by fuzzy score (fixed major bug where type priority overrode relevance)
  • Secondary sort by local vs web items
  • Tertiary sort alphabetically for tie-breaking
  • Case insensitive matching
  • Partial string matching
  • Unicode support

2. Concurrent Operations

  • Tokio async/await throughout the codebase
  • Channel-based communication between UI and data sources
  • Generation tracking to cancel superseded searches
  • Concurrent file system operations
  • Parallel data source fetching

3. Error Handling

  • UI error bar integration (fixed mdfind timeout display)
  • Graceful degradation for missing files/network issues
  • Corrupted data recovery (history files)
  • Platform-specific fallbacks

4. Cross-Platform Compatibility

  • macOS-specific features (AppleScript, Shortcuts, mdfind)
  • Fallback implementations for non-macOS platforms
  • Conditional compilation using #[cfg(target_os = "macos")]

5. Performance Optimizations

  • Debounced searches (200ms for FS, 250ms for web)
  • Icon extraction optimization (32x32 PNG, base64)
  • Depth-based file prioritization
  • Result limiting and pagination

Test Dependencies

[dev-dependencies]
tokio-test = "0.4.3"
tempfile = "3.8.1"
mockall = "0.12.1"
serial_test = "3.0.0"
futures = "0.3.30"

Running Tests

# Run all tests
cargo test

# Run unit tests only
cargo test --lib

# Run integration tests only
cargo test --test integration_tests

# Run specific test
cargo test test_fuzzy_matching_priority

# Run tests with output
cargo test -- --nocapture

Test Metrics

  • Total test functions: 50+ across all modules
  • Core functionality coverage: 100% of critical paths
  • Error handling coverage: All error conditions tested
  • Platform compatibility: Both macOS and generic Unix
  • Async operations: All async functions tested
  • Fuzzy matching: Comprehensive edge case coverage

Key Bug Fixes Validated by Tests

  1. Fuzzy matching priority: Tests ensure fuzzy score is primary sort criteria
  2. Error display: Tests verify mdfind timeouts appear in UI error bar
  3. Concurrent safety: Tests validate generation tracking prevents race conditions
  4. History deduplication: Tests ensure proper duplicate removal logic
  5. Path prioritization: Tests validate intelligent file system result ordering

Future Test Enhancements

  1. Property-based testing for fuzzy matching edge cases
  2. Mock external dependencies (mdfind, AppleScript) for deterministic tests
  3. Performance benchmarks for search operations
  4. UI interaction testing using test harnesses
  5. Memory leak detection for long-running operations