Overflow Stress TestLong String
Verifies that 140+ character product titles and unbroken technical identifiers wrap cleanly without horizontal overflow or misaligned action rows.
QUALITY ASSURANCE // EDGE-CASE & RESILIENCE GALLERY
Component & State Verification Gallery
A production theme must remain composed under real-world content stress: extreme titles, missing media, zero-result queries, large collections, unsupported preview presets, and offline commerce boundaries.
1. Extreme Long Titles & 2. Missing Image Blueprint Fallback
Missing Image State16:10 Locked
When an EmDash product entry has a null or invalid media URL, ProductImage.astro renders a zero-CLS 16:10 architectural blueprint SVG rather than a broken image icon.
3. Zero Search / Filter Results Recovery State
Zero Matching Editions (Query: "nonexistent-quantum-theme")
No themes match your current filter combination.
Visitors never encounter a blank grid: the empty state explains preset constraints and offers a single-click reset back to the full collection.
Reset Collection Filters4. Unsupported Preview Options & Constraint Reconciliation
LIVE CONSTRAINT VERIFICATION // WHITE BOUTIQUE (saari-design-versions/version-4 (EmDash 1.2.0 port))
When a visitor or shared link requests ?theme=white-boutique&scheme=dark&density=compact&typography=technical-mono, normalizeAtelierState() refuses to fake compatibility, falls back to calibrated defaults (scheme=light, density=editorial), and surfaces these exact diagnostic notices:
- White Boutique is calibrated strictly for daylight gallery reproduction (#fbfaf8 chalk canvas); Dark scheme is intentionally unsupported.
- White Boutique uses museum wall-label typography; Technical Mono display headers are unsupported.
- White Boutique enforces generous archival museum matte framing; Compact density is unsupported.
5. Unavailable Commerce State (COMMERCE_ENABLED=0)
Graceful Degradation Specimen
Commerce Runtime Disabled or Unreachable
When COMMERCE_ENABLED=0 is set or the installed Registry Commerce plugin (r_gshdrqaldna3r7sn) cannot be reached, the storefront disables cart mutations, returns HTTP 503 on transactional endpoints, and preserves full access to the live Theme Atelier and documentation.
6. Large Catalog Stress Grid (24 Editions with content-visibility: auto)
Verifies grid density, consistent card footer alignment, and offscreen rendering deferral across a 24-item collection matrix.
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