Fix failing Database.test.ts test suite

[michaeloboyle]

Bug: Database.test.ts Failures

One test suite in Database.test.ts is failing and needs investigation.

Current Status

• ✅ 29+ other tests passing
• ❌ Database.test.ts has failures

Steps to Reproduce

npm test -- Database.test.ts

Expected Behavior

All Database.test.ts tests should pass

Investigation Needed

• Identify specific failing test(s)
• Determine root cause
• Fix implementation or test
• Verify no regressions

AgentDB Info

Pattern: test-debugging
Similar Issues: AgentDB will search for similar test failures
Can analyze with: agentdb-issue-analyzer skill

[michaeloboyle]

🤖 AgentDB Analysis

Pattern Recognized: TypeScript compilation error (confidence: 0.95)
Actual Issue: Not a test failure - compilation error preventing tests from running

Root Cause Identified

TypeScript error in src/core/Database.ts:471:

Type 'T' does not satisfy the constraint 'Record<string, GraphEntity>'
Type 'Record<string, unknown>' is not assignable to type 'Record<string, GraphEntity>'

Location: Database.ts:471-472 (pattern() method)

Recommended Fix

Update the generic constraint in the pattern() method:

// Current (incorrect):
pattern<T extends Record<string, unknown> = Record<string, unknown>>(): PatternQuery<T> {
  return new PatternQuery<T>(this.db);
}

// Fix:
pattern<T extends Record<string, GraphEntity> = Record<string, GraphEntity>>(): PatternQuery<T> {
  return new PatternQuery<T>(this.db);
}

Estimated Effort

Time: 5-10 minutes (simple type fix)
Complexity: Low
Confidence: 95%

Next Steps

1. Update generic constraint in pattern() method
2. Run npm run typecheck to verify fix
3. Run npm test to verify all tests pass
4. Commit fix

AgentDB Learning

• Pattern: typescript-type-constraint-mismatch
• Category: compilation-error
• Similar fixes: Type constraint mismatches typically resolved by aligning generic constraints with expected types

🤖 Powered by AgentDB pattern recognition

[michaeloboyle]

✅ Fix Applied

The issue has been resolved!

Changes Made

1. Added GraphEntity import from ../types/pattern
2. Updated pattern() method type constraint to use GraphEntity instead of unknown

Test Results

✅ All 79 tests passing in Database.test.ts
✅ Time: 1.3s

Commits

The fix will be committed with AgentDB learning data for future pattern recognition.

AgentDB Learning Update

• Pattern: typescript-missing-import
• Resolution Time: ~5 minutes (as predicted)
• Success: ✅ Fix confirmed
• Learning: Missing type import errors typically resolved by checking type definition locations

Closing this issue as resolved.

🤖 Fixed with AgentDB guidance