For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt, and this page is available as Markdown at /config/test/snapshot-format.md.
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Rstest
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      • snapshotFormat

      • Type: PrettyFormatOptions
      • Default: { printShadowRoot: false }

      Customize the snapshot format using options from the pretty-format.

      Rstest omits shadow roots from snapshots by default. Set printShadowRoot to true to include them.

      rstest.config.ts
      import { defineConfig } from '@rstest/core';

export default defineConfig({
  snapshotFormat: {
    printBasicPrototype: true,
  },
});