feat(compare): DotStrip with England-average anchor

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0146VHeLAWjDVE2B5uU67jCB
2026-07-13 19:18:33 +01:00
parent 48ca042b08
commit 60cbc3f46d
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+import { render, screen } from '@testing-library/react';
+
+import { DotStrip } from '@/components/DotStrip';
+
+describe('DotStrip', () => {
+  it('enumerates anchor and school values in the aria-label', () => {
+    render(
+      <DotStrip
+        label="Reading"
+        values={[91, 92, 87]}
+        schoolNames={['Barclay', 'Elmhurst', 'Plumcroft']}
+        anchor={{ value: 75, label: 'England 75%' }}
+      />,
+    );
+    const strip = screen.getByRole('img');
+    expect(strip).toHaveAccessibleName(
+      'Reading: England 75%, Barclay 91%, Elmhurst 92%, Plumcroft 87%',
+    );
+  });
+
+  it('renders the anchor tick when provided and not otherwise', () => {
+    const { rerender } = render(
+      <DotStrip
+        label="Reading"
+        values={[91]}
+        schoolNames={['Barclay']}
+        anchor={{ value: 75, label: 'England 75%' }}
+      />,
+    );
+    expect(screen.getByText('England 75%')).toBeInTheDocument();
+
+    rerender(
+      <DotStrip label="Science" values={[95]} schoolNames={['Barclay']} anchor={null} />,
+    );
+    expect(screen.queryByText(/England/)).not.toBeInTheDocument();
+  });
+
+  it('skips schools without a value', () => {
+    render(
+      <DotStrip
+        label="Maths"
+        values={[91, null]}
+        schoolNames={['Barclay', 'Elmhurst']}
+      />,
+    );
+    expect(screen.getByRole('img')).toHaveAccessibleName('Maths: Barclay 91%');
+  });
+});