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testland/chart-render-tests

Chart-render regression testing across the three chart-library families - Canvas (Chart.js: locator screenshot snapshot + `canvas.toDataURL()` diff with animations disabled), SVG (D3: `outerHTML` structural snapshot with generated-ID normalization + per-element data-binding tests), and declarative specs (Vega / Vega-Lite: JSON Schema validation + Vega-Lite → Vega compile test). Detects the family from package.json imports (chart.js / d3 / vega-lite), then applies the matching recipe; full per-library depth with citations in references/chartjs.md, references/d3.md, references/vega.md. Use when a dashboard or data product renders charts and their output needs regression coverage - before a chart-library major upgrade, after a theming change, or when runtime-generated Vega specs must be proven valid before render.

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Files

plugin.json.tessl-plugin/

{
  "name": "testland/chart-render-tests",
  "description": "Chart-render regression testing across the three chart-library families - Canvas (Chart.js: locator screenshot snapshot + `canvas.toDataURL()` diff with animations disabled), SVG (D3: `outerHTML` structural snapshot with generated-ID normalization + per-element data-binding tests), and declarative specs (Vega / Vega-Lite: JSON Schema validation + Vega-Lite \u2192 Vega compile test). Detects the family from package.json imports (chart.js / d3 / vega-lite), then applies the matching recipe; full per-library depth with citations in references/chartjs.md, references/d3.md, references/vega.md. Use when a dashboard or data product renders charts and their output needs regression coverage - before a chart-library major upgrade, after a theming change, or when runtime-generated Vega specs must be proven valid before render.",
  "private": false,
  "skills": [
    "."
  ],
  "version": "1.0.0"
}

.tessl-plugin

plugin.json

SKILL.md

tile.json