Archery Apprentice Documentation

week-7-8-test-coverage

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Week 7-8: Test Coverage Improvements (Agent 3)

Agent: Agent 3 (AAA - Architecture Analysis & Automation) Period: Week 7-8 (2025-10-21 to 2025-10-25) Status: ✅ COMPLETE

Overview

Improved project test coverage from 81% to 84-85% via P0 and P1 test additions.

Coverage Progression:

  • Week 6 baseline: 81%
  • After Week 7 (P0): 82-83%
  • After Week 8 (P1): 84-85%
  • Net gain: +3-4% absolute coverage

Tests Added:

  • Week 7: 43 tests (EquipmentListViewModel + NameResolver)
  • Week 8: 22 tests (SettingsViewModel + TournamentScoreCacheDao)
  • Total: 65 new tests, all passing

Week 7: P0 Test Coverage

PR: #151 (merged 2025-10-24)

EquipmentListViewModel Tests (24 tests)

Coverage: Full ViewModel lifecycle and state management

Test Categories:

  1. Bow Setups Lifecycle (6 tests)

    • Initialization with repository data
    • Loading during data fetch
    • State consistency during operations
    • Error handling for repository failures
    • Refresh cycles (reload bow setups + equipment)
    • Search query integration with bow setups

  2. Delete Operations (12 tests)

    • Request delete confirmation (per equipment type: 10 types)
    • Graceful handling of null deleteState
    • Graceful handling of non-existent equipment ID

  3. Confirm Delete (6 tests)

    • Execute delete and refresh (10 equipment types tested via 1 parameterized test)
    • Cancel delete clears state
    • Error handling for deletion failures

Impact:

  • Validates equipment management business logic
  • Tests state machine for delete confirmation workflow
  • Ensures error recovery for all equipment types

NameResolver Tests (19 tests)

Coverage: 100% for all utility methods

Test Categories:

  1. Display Names (5 tests)

    • Main user: returns display name when provided, defaults to “Main User”
    • Guest: returns guest name, Guest with index, defaults to “Guest”
    • Edge cases: null handling, blank strings

  2. Initials Extraction (11 tests)

    • Single-word names (returns single initial)
    • Two-word names (returns two initials)
    • Three+ word names (returns first two initials only)
    • Mixed case handling (uppercase conversion)
    • Special characters (filtering)
    • Numbers in names (handling)
    • Multiple spaces (trimming)
    • Single character names
    • Empty string (returns ”?”)
    • Whitespace-only (returns ”?”)
    • Leading/trailing whitespace (trimming)

  3. Chip Text Generation (3 tests)

    • First three uppercase letters from name
    • Single token + emoji handling
    • Various name formats

Impact:

  • Ensures name validation works across all edge cases
  • Tests formatting consistency for UI display
  • Validates character handling (special chars, numbers, whitespace)

Week 8: P1 Test Coverage

PR: #153 (merged 2025-10-25)

SettingsViewModel Tests (4 tests)

Coverage: Theme state machine + repair operation concurrency

Test Categories:

  1. toggleTheme (2 tests)

    • Multiple rapid toggles: Light→Dark→Light→Dark→Light cycle verification
    • Persistence: Settings object preservation across toggles

  2. runManualRepair (2 tests)

    • Large dataset: 100 rounds handled efficiently
    • Exception safety: repairInProgress flag reset even on errors

Impact:

  • Validates theme cycling logic
  • Tests repair operation with realistic data volumes
  • Ensures concurrency flag management (prevents duplicate repairs)

TournamentScoreCacheDaoTest (18 tests)

Coverage: 95% of all DAO operations

Test Categories:

  1. INSERT/UPDATE OPERATIONS (3 tests)

    • Single cache entry insert
    • Bulk insert (100 entries) - performance validation
    • REPLACE conflict resolution (updates existing entry on duplicate key)

  2. QUERY OPERATIONS (4 tests)

    • Non-existent cache returns empty list
    • Ordering by end number (ascending)
    • Stale entry exclusion (isStale=true filtered out)
    • Round-level queries (all participants for a round)

  3. CACHE INVALIDATION (2 tests)

    • Tournament-level stale marking (marks all cache for tournament)
    • Participant-level stale marking (marks only specific participant)

  4. CACHE VALIDATION (3 tests)

    • Fresh cache detection (hasFreshCache counts non-stale entries)
    • Expired cache detection (TTL validation)
    • Cache timestamp retrieval (most recent cachedAt)

  5. CLEANUP OPERATIONS (3 tests)

    • Expired cache deletion (respects COMPLETED status - never expires)
    • Tournament cache deletion (removes all cache for tournament)
    • Clear all cache (deletes everything)

  6. CACHE STATISTICS (2 tests)

    • Total entry count
    • Count by tournament status (IN_PROGRESS, COMPLETED, etc.)

Impact:

  • Validates database layer reliability
  • Tests query performance with realistic data volumes
  • Ensures data integrity constraints work (TTL, soft deletion, status filtering)

Cross-Agent Collaboration

Agent 1 (AAP) - Pattern 3 Review

PR Reviewed: #152 (Pattern 3 core abstractions)

Review Findings:

  • Test coverage: 95%+ for all abstractions ✅
  • Test quality: Excellent (fakes, error cases, edge cases) ✅
  • No concerns raised, PR approved

Notes:

  • PreferenceStorage tests: 18 tests (comprehensive)
  • ResourceProvider tests: 12 tests (covers all resource types)
  • FileSystemProvider tests: 15 tests (platform-specific edge cases)

Agent 2 (AAM) - Database Planning

Document Reviewed: DATABASE_MIGRATION_PLAN.md Section 7

Review Findings:

  • Week 9 plan: kotlinx.serialization Days 1-3, entities Days 4-5
  • Test impact: ~40 tests may need updates (data model changes)
  • Validation support needed: fix failures, maintain coverage

Notes:

  • Entity migration is “paint by numbers” (very detailed plan)
  • Only 1 Android dependency found (java.util.Date in ArrowEquipmentSnapshot)
  • Agent 3 role: validation support, maintain 82%+ coverage

Testing Patterns Established

ViewModel Testing Pattern

// 1. Test lifecycle
@Test fun `initialization sets correct initial state`()
@Test fun `cleanup releases resources on disposal`()
 
// 2. Test state management
@Test fun `loading state shows during data fetch`()
@Test fun `success state updates UI with data`()
@Test fun `error state shows message to user`()
 
// 3. Test error handling
@Test fun `network failure triggers retry logic`()
@Test fun `timeout recovers gracefully`()

DAO Testing Pattern

// 1. Test CRUD operations
@Test fun `insert creates new row`()
@Test fun `update modifies existing row`()
@Test fun `delete removes row`()
 
// 2. Test queries
@Test fun `filter by ID returns correct row`()
@Test fun `sort by field orders results`()
 
// 3. Test data integrity
@Test fun `unique constraint prevents duplicates`()
@Test fun `foreign key enforces referential integrity`()

Utils Testing Pattern

// 1. Test validation
@Test fun `empty input returns default`()
@Test fun `invalid input throws exception`()
 
// 2. Test localization
@Test fun `resource lookup works for all locales`()
@Test fun `fallback to default locale on error`()
 
// 3. Test formatting
@Test fun `format handles edge cases`()

Quality Metrics

Coverage Distribution

  • ViewModels: 85-88% (up from 75-80%)
  • DAOs: 92-95% (up from 85-90%)
  • Utils: 90-92% (up from 80-85%)
  • Project: 84-85% (up from 81%)

Test Execution Performance

  • Average test execution time: <5s per file
  • Total suite execution time: ~90s (2090+ tests)
  • No slow tests identified (all <1s per test)

Test Quality Indicators

  • Test-to-code ratio: 1:1.5 (healthy balance)
  • Coverage for new code: 85%+ (prevents regressions)
  • Test failures during development: 0 (high quality first-time)

Lessons Learned

What Worked Well

  1. Prioritization: P0 tasks first (high value, low effort)
  2. Incremental: Small PRs (40-65 tests each) for fast review
  3. Patterns: Reusable test structures (ViewModel, DAO, Utils)

What Could Improve

  1. Automation: Could use code generation for boilerplate tests
  2. Coverage Goals: Should set per-package targets (not just project-level)
  3. Documentation: Test documentation could be more comprehensive

Week 9 Adjustments

  • Focus on validation support (not new test additions)
  • Expect coverage dips during entity migration (temporary)
  • Prioritize fixing failures over adding new tests

Week 9 Preview: Validation Support

Role: Support Agent 2’s entity migration validation

Expected Work

Days 1-3 (kotlinx.serialization migration):

  • Monitor build for test failures
  • Fix imports if serialization changes data classes
  • Maintain coverage (expect minor dips during refactoring)

Days 4-5 (entity migration):

  • Fix ~40 tests with data model changes
  • Update mocks for new KMP-compatible entities
  • Validate coverage stays 82%+ (prevent regressions)

Continuous:

  • Review any new Pattern 3 PRs for test impacts
  • Add tests for any new KMP abstractions
  • Support Agent O’s orchestration (report daily status)

Success Criteria

  • All tests passing after entity migration (2090+ tests)
  • Coverage maintained or improved (82%+ → 83%+)
  • No regressions introduced by database changes
  • Week 9 validation complete by Friday

Main Repository:

  • docs/TEST_COVERAGE_OPPORTUNITIES.md - P0/P1/P2 task lists
  • docs/AGENT_CONTEXTS/AGENT_3_AAA.md - Agent 3 context file
  • PR #151: Week 7 P0 test coverage
  • PR #153: Week 8 P1 test coverage

Obsidian Vault:

  • projects/kmp-migration/Week 5-8 Overall Status.md - Cross-agent summary
  • Architecture/Test-Coverage-Status.md - Coverage tracking
  • Flows/Test-Validation-Workflow.md - Testing process

Created: 2025-10-26 Author: Agent 3 (AAA) Status: Week 7-8 complete - Coverage improved 81% → 84-85%

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