Function simulateGenSubstitution

test/resolver-entry.test.ts:108–126

(
    template: string,
    registry: Record<string, import('../scripts/resolvers/types').ResolverValue>,
    ctx: TemplateContext,
  )

 */
describe('gen-skill-docs substitution loop respects the appliesTo gate', () => {
  function simulateGenSubstitution(
    template: string,
    registry: Record<string, import('../scripts/resolvers/types').ResolverValue>,
    ctx: TemplateContext,
  ): string {
    // Mirrors scripts/gen-skill-docs.ts:457-467 (the {{NAME}} substitution
    // loop). Keep this in sync with the real loop. Drift here is what the
    // test is designed to catch.
    return template.replace(/\{\{(\w+(?::[^}]+)?)\}\}/g, (_match, fullKey) => {
      const parts = fullKey.split(':');
      const resolverName = parts[0];
      const args = parts.slice(1);
      const entry = registry[resolverName];
      if (!entry) throw new Error(`Unknown placeholder {{${resolverName}}}`);
      const { resolve, appliesTo } = unwrapResolver(entry);
      if (appliesTo && !appliesTo(ctx)) return '';
      return args.length > 0 ? resolve(ctx, args) : resolve(ctx);
    });
  }

  test('plain-function resolver fires unconditionally', () => {
    const tpl = '{{ALWAYS}}';