Step 10 of v5.1.0 humanizer Wave 4. Adds tests/json-backcompat.test.mjs
asserting that --json output of every CLI remains backwards-compatible
with the v5.0.0 contract.
Coverage strategy mirrors Wave 3 cli-humanizer test discovery:
- 4 fixture-deterministic CLIs (scan-orchestrator, posture,
token-hotspots-cli, fix-cli) get strict byte-equal byte-equal --json
vs frozen tests/snapshots/v5.0.0/ snapshot, with time-varying fields
(timestamp, target path, duration_ms, generatedAt, durationMs)
normalized.
- drift-cli is checked with the same byte-equal contract guarded by an
ensureDriftBaseline precondition; the test silently skips when the
baseline cannot be created.
- 3 environment-aware CLIs (plugin-health-scanner, manifest,
whats-active) read live config-cascade state, so frozen snapshots
drift as the marketplace evolves. They are verified by mode-
equivalence (--json equals --raw) instead — the same approach
established in Wave 3 cli-humanizer.test.mjs.
A cross-cutting suite asserts --json output of the 4 deterministic
CLIs never carries humanizer fields (userImpactCategory,
userActionLanguage, relevanceContext) on any finding, walking both
top-level findings arrays and scanners[].findings paths.
Tests: 739 to 751 (+12 SC-6 cases). Full suite passes.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
