feat(estratega): marco line-art listo para el retrato real

components/primitives/__tests__/MarcoRetrato.test.tsx

@@ -0,0 +1,20 @@
+import { render, screen } from '@testing-library/react';
+import { describe, it, expect } from 'vitest';
+import { MarcoRetrato } from '../MarcoRetrato';
+
+describe('<MarcoRetrato />', () => {
+  it('renders whatever portrait it is given', () => {
+    render(<MarcoRetrato><span>retrato</span></MarcoRetrato>);
+    expect(screen.getByText('retrato')).toBeInTheDocument();
+  });
+
+  it('keeps the frame decorative: the portrait carries the meaning', () => {
+    const { container } = render(<MarcoRetrato><span>retrato</span></MarcoRetrato>);
+    expect(container.querySelector('svg')).toHaveAttribute('aria-hidden', 'true');
+  });
+
+  it('draws the arc that will survive the real photograph landing', () => {
+    const { container } = render(<MarcoRetrato><span>retrato</span></MarcoRetrato>);
+    expect(container.querySelectorAll('circle').length).toBeGreaterThanOrEqual(1);
+  });
+});