# VexLens Truth Table Tests

## Status
NOT_FOUND

## Description
Systematic truth table tests for VEX lattice merge correctness. The VexLens engine exists but comprehensive truth table test coverage is missing.

## Why Not Implemented
- No systematic truth table tests for VEX lattice merge correctness found
- The VexLens test infrastructure does exist:
  - `src/VexLens/__Tests/StellaOps.VexLens.Tests/` -- VexLens tests project
  - `src/VexLens/StellaOps.VexLens/__Tests/StellaOps.VexLens.Tests/` -- additional test project
  - `src/VexLens/StellaOps.VexLens/__Tests/StellaOps.VexLens.Core.Tests/` -- core tests
  - Tests cover: `NormalizerTests`, `PurlParserTests`, `ProductMapperTests`, `CpeParserTests`
  - `src/VexLens/__Libraries/__Tests/StellaOps.VexLens.Spdx3.Tests/` -- SPDX3 integration tests
- The VexLens engine has merge logic (consensus projections, delta computation) but does not have exhaustive truth table tests covering all VEX status transition combinations
- TASKS.md files in test directories indicate planned but incomplete test coverage
- The advisory called for systematic coverage of all status pairs (affected/not_affected/fixed/under_investigation x all transitions)

## Source
- Feature matrix scan

## Notes
- Module: VexLens
- Modules referenced: `src/VexLens`
- Related: `src/VexLens/__Tests/` (existing tests cover parsing/mapping but not exhaustive lattice merge truth tables)