# Rule Repository Tests Implementation

**Date**: January 14, 2026  
**Session Duration**: ~1 hour  
**Status**: ✅ COMPLETE

## Overview

Implemented comprehensive integration tests for the Rule repository, completing the test coverage for core automation components. The Rule repository is critical as it connects triggers to actions with conditional logic, forming the heart of the automation engine.

## What Was Accomplished

### 1. Fixed Rule Repository Implementation

**Issues Found and Fixed**:
- ❌ All queries used `rules` instead of `attune.rule` (missing schema prefix)
- ❌ No error handling for unique constraint violations
- ❌ Missing proper Error type imports

**Changes Made**:
- ✅ Updated all 9 SQL queries to use `attune.rule` schema prefix
- ✅ Added `Error::already_exists()` for duplicate ref violations
- ✅ Ensured consistent error handling across all operations

**Files Modified**:
- `crates/common/src/repositories/rule.rs` - Fixed schema prefixes and error handling

### 2. Added Test Fixtures

**New Helper Functions**:
- `unique_rule_name()` - Generate unique rule names for parallel tests
- `TriggerFixture` - Complete fixture builder for creating test triggers
  - Supports both pack-scoped and core triggers
  - `new()` and `new_unique()` constructors
  - Builder methods: `with_label()`, `with_enabled()`, `with_param_schema()`, etc.

**Files Modified**:
- `crates/common/tests/helpers.rs` - Added TriggerFixture and rule helpers

### 3. Implemented 26 Comprehensive Tests

**Test Coverage** (`rule_repository_tests.rs`):

#### CREATE Tests (7 tests)
- ✅ `test_create_rule` - Basic rule creation
- ✅ `test_create_rule_disabled` - Create disabled rule
- ✅ `test_create_rule_with_complex_conditions` - Complex JSON conditions
- ✅ `test_create_rule_duplicate_ref` - Unique constraint validation
- ✅ `test_create_rule_invalid_ref_format_uppercase` - Lowercase constraint
- ✅ `test_create_rule_invalid_ref_format_no_dot` - Format constraint (pack.name)

#### READ Tests (6 tests)
- ✅ `test_find_rule_by_id` - Find by primary key
- ✅ `test_find_rule_by_id_not_found` - Not found handling
- ✅ `test_find_rule_by_ref` - Find by unique ref
- ✅ `test_find_rule_by_ref_not_found` - Not found handling
- ✅ `test_list_rules` - List all rules
- ✅ `test_list_rules_ordered_by_ref` - Verify alphabetical ordering

#### UPDATE Tests (6 tests)
- ✅ `test_update_rule_label` - Update label field
- ✅ `test_update_rule_description` - Update description field
- ✅ `test_update_rule_conditions` - Update JSON conditions
- ✅ `test_update_rule_enabled` - Toggle enabled state
- ✅ `test_update_rule_multiple_fields` - Update multiple fields
- ✅ `test_update_rule_no_changes` - Empty update (idempotency)

#### DELETE Tests (2 tests)
- ✅ `test_delete_rule` - Delete existing rule
- ✅ `test_delete_rule_not_found` - Delete non-existent rule

#### SPECIALIZED QUERY Tests (4 tests)
- ✅ `test_find_rules_by_pack` - Filter by pack
- ✅ `test_find_rules_by_action` - Filter by action
- ✅ `test_find_rules_by_trigger` - Filter by trigger
- ✅ `test_find_enabled_rules` - Filter enabled only

#### CONSTRAINT Tests (1 test)
- ✅ `test_cascade_delete_pack_deletes_rules` - CASCADE DELETE verification

#### TIMESTAMP Tests (1 test)
- ✅ `test_rule_timestamps` - Verify created/updated behavior

### 4. Test Results

**All Tests Passing**:
```
running 26 tests
test test_cascade_delete_pack_deletes_rules ... ok
test test_create_rule ... ok
test test_create_rule_disabled ... ok
test test_create_rule_duplicate_ref ... ok
test test_create_rule_invalid_ref_format_no_dot ... ok
test test_create_rule_invalid_ref_format_uppercase ... ok
test test_create_rule_with_complex_conditions ... ok
test test_delete_rule ... ok
test test_delete_rule_not_found ... ok
test test_find_enabled_rules ... ok
test test_find_rule_by_id ... ok
test test_find_rule_by_id_not_found ... ok
test test_find_rule_by_ref ... ok
test test_find_rule_by_ref_not_found ... ok
test test_find_rules_by_action ... ok
test test_find_rules_by_pack ... ok
test test_find_rules_by_trigger ... ok
test test_list_rules ... ok
test test_list_rules_ordered_by_ref ... ok
test test_rule_timestamps ... ok
test test_update_rule_conditions ... ok
test test_update_rule_description ... ok
test test_update_rule_enabled ... ok
test test_update_rule_label ... ok
test test_update_rule_multiple_fields ... ok
test test_update_rule_no_changes ... ok

test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
```

**Project-Wide Test Results**:
- Common library: **195 tests passing** (up from 169)
- API service: **57 tests passing**
- **Total: 252 tests passing** (up from 226)

### 5. Documentation Updates

**Updated Files**:
- `docs/testing-status.md` - Updated test counts and status
- `work-summary/TODO.md` - Marked Rule repository tests as complete

## Technical Details

### Rule Model Structure

Rules connect triggers to actions with conditional logic:
- **Required Fields**: ref, pack, label, description, action, trigger, conditions, enabled
- **Relationships**: 
  - Belongs to Pack (CASCADE DELETE)
  - References Action (NOT NULL)
  - References Trigger (NOT NULL)
- **Constraints**:
  - Unique ref (format: `pack.name`)
  - Lowercase ref enforcement
  - Valid JSON conditions

### Test Patterns Established

1. **Unique Fixture Generation**: All tests use `new_unique()` for parallel safety
2. **Relationship Setup**: Tests create Pack → Action + Trigger → Rule
3. **Error Validation**: Proper Error enum pattern matching
4. **JSON Handling**: Tests verify complex condition structures
5. **Cascade Testing**: Verify foreign key constraints

### Key Learnings

1. **Error Handling Pattern**: Use `Error::already_exists("Entity", "field", &value)`
2. **Schema Prefixes**: Always use `attune.table_name` in queries
3. **Test Dependencies**: Rules require Pack, Action, and Trigger fixtures
4. **Fixture Helpers**: Building comprehensive fixtures accelerates test writing

## Impact

### Testing Coverage
- **5 of 14 repositories** now have full test coverage
- Core automation flow (Pack → Action/Trigger → Rule) fully tested
- **195/252 project tests** are in common library (77%)

### Code Quality
- Rule repository queries all use correct schema prefixes
- Consistent error handling across all repositories
- All database constraints validated by tests

### Development Velocity
- Clear patterns for future repository tests
- Comprehensive fixtures reduce test setup time
- Parallel test execution remains fast (~0.14s for 26 tests)

## Next Steps

### Immediate (This Week)
1. **Execution Repository Tests** - Critical for workflow tracking
   - Covers execution state, parent-child relationships, status transitions
   - Needed for Executor service implementation
   - Estimated: 2-3 hours

2. **Event & Enforcement Repository Tests** - Automation event flow
   - Covers trigger events and rule enforcement instances
   - Links to execution chain
   - Estimated: 2-3 hours

### Near-Term (Next Week)
3. **Sensor Repository Tests** - Monitoring and event generation
4. **Inquiry Repository Tests** - Human-in-the-loop interactions
5. **Notification, Key, Worker, Runtime Repository Tests**

### Medium-Term
6. **Expand API Integration Tests** - Test all endpoint groups
7. **Add Error Scenario Tests** - Invalid inputs, constraint violations
8. **Performance Tests** - Query optimization validation

## Files Changed

### Modified
- `crates/common/src/repositories/rule.rs` - Fixed queries and error handling
- `crates/common/tests/helpers.rs` - Added TriggerFixture and helpers
- `docs/testing-status.md` - Updated test counts
- `work-summary/TODO.md` - Marked Rule tests complete

### Created
- `crates/common/tests/rule_repository_tests.rs` - 26 comprehensive tests
- `work-summary/2026-01-14-rule-repository-tests.md` - This document

## Conclusion

The Rule repository is now fully tested with 26 comprehensive integration tests covering all CRUD operations, specialized queries, constraints, and error handling. Combined with Identity, Trigger, Pack, and Action repository tests, we now have solid test coverage for the core automation components.

**Test Progress**: 
- Started session: 226 tests passing
- Ended session: **252 tests passing** (+26 new tests, +11.5%)
- Common library: **195 tests** (66 unit + 23 migration + 106 repository)

The pattern established for repository testing continues to accelerate development - each new repository test suite takes less time as fixtures and patterns are refined. The project is well-positioned to complete Execution repository tests next, which will unblock Executor service implementation.