init project

tests/unit/components/actions.test.tsx

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+import { Button } from '@/components/actions/Button';
+import { ActionLink } from '@/components/actions/ActionLink';
+import { fireEvent, render, screen } from '@testing-library/react';
+import { describe, expect, it, vi } from 'vitest';
+
+describe('action components', () => {
+  it('prevents duplicate interaction while loading and preserves the accessible name', () => {
+    const onClick = vi.fn();
+    render(
+      <Button loading onClick={onClick}>
+        Save reservation
+      </Button>,
+    );
+    const button = screen.getByRole('button', { name: 'Save reservation' });
+    expect(button).toBeDisabled();
+    expect(button).toHaveAttribute('aria-busy', 'true');
+    fireEvent.click(button);
+    expect(onClick).not.toHaveBeenCalled();
+  });
+
+  it('requires an accessible label for icon-only use through its public contract', () => {
+    render(<Button icon="close" aria-label="Close panel" />);
+    expect(screen.getByRole('button', { name: 'Close panel' })).toBeVisible();
+  });
+
+  it('renders unresolved navigation as a disabled non-link', () => {
+    render(
+      <ActionLink href="/en" disabledReason="Destination pending approval">
+        Book a demo
+      </ActionLink>,
+    );
+    expect(screen.queryByRole('link')).not.toBeInTheDocument();
+    expect(screen.getByText('Book a demo').closest('[aria-disabled="true"]')).toBeInTheDocument();
+  });
+});

tests/unit/components/controls.test.tsx

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+import { Accordion } from '@/components/controls/Accordion';
+import { Tabs } from '@/components/controls/Tabs';
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { describe, expect, it } from 'vitest';
+
+describe('selection and disclosure controls', () => {
+  it('moves tab focus and selection with arrow keys', async () => {
+    const user = userEvent.setup();
+    render(
+      <Tabs
+        label="Views"
+        items={[
+          { id: 'one', label: 'One', content: 'Panel one' },
+          { id: 'two', label: 'Two', content: 'Panel two' },
+        ]}
+      />,
+    );
+    const first = screen.getByRole('tab', { name: 'One' });
+    await user.click(first);
+    await user.keyboard('{ArrowRight}');
+    expect(screen.getByRole('tab', { name: 'Two' })).toHaveAttribute('aria-selected', 'true');
+    expect(screen.getByRole('tabpanel', { name: 'Two' })).toHaveTextContent('Panel two');
+  });
+
+  it('uses native disclosure semantics for accordion items', () => {
+    render(<Accordion items={[{ id: 'faq', title: 'Question', content: 'Answer' }]} />);
+    expect(screen.getByText('Question').closest('summary')).toBeInTheDocument();
+    expect(screen.getByText('Answer').closest('details')).not.toHaveAttribute('open');
+  });
+});

tests/unit/components/evidence.test.tsx

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+import { canRenderProductionEvidence, Metric } from '@/components/marketing/Evidence';
+import { render, screen } from '@testing-library/react';
+import { describe, expect, it } from 'vitest';
+
+describe('evidence governance', () => {
+  it('allows only approved evidence in production mode', () => {
+    expect(canRenderProductionEvidence('approved')).toBe(true);
+    expect(canRenderProductionEvidence('pending-review')).toBe(false);
+    expect(canRenderProductionEvidence('research-only')).toBe(false);
+    expect(canRenderProductionEvidence('prohibited')).toBe(false);
+  });
+
+  it('suppresses research-only metrics in production mode', () => {
+    const { container } = render(
+      <Metric
+        production
+        statusLabel="Research only"
+        content={{ value: '24', label: 'Fixture', status: 'research-only' }}
+      />,
+    );
+    expect(container).toBeEmptyDOMElement();
+  });
+
+  it('renders approved evidence with its source reference', () => {
+    render(
+      <Metric
+        production
+        statusLabel="Approved"
+        content={{
+          value: '1',
+          label: 'Approved fixture',
+          status: 'approved',
+          sourceReference: 'SRC-001',
+        }}
+      />,
+    );
+    expect(screen.getByText('SRC-001')).toBeVisible();
+  });
+});

tests/unit/components/forms.test.tsx

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+import { ErrorSummary } from '@/components/forms/ErrorSummary';
+import { FormField } from '@/components/forms/FormField';
+import { TextInput } from '@/components/forms/TextInput';
+import { render, screen } from '@testing-library/react';
+import { describe, expect, it } from 'vitest';
+
+describe('form primitives', () => {
+  it('associates labels, help, required state, and errors', () => {
+    render(
+      <FormField
+        id="work-email"
+        label="Work email"
+        required
+        supportingText="Use work email"
+        error="Enter a valid address"
+      >
+        <TextInput
+          id="work-email"
+          type="email"
+          required
+          invalid
+          describedBy="work-email-help work-email-error"
+        />
+      </FormField>,
+    );
+    const input = screen.getByLabelText(/Work email/);
+    expect(input).toHaveAttribute('required');
+    expect(input).toHaveAttribute('aria-invalid', 'true');
+    expect(input).toHaveAccessibleDescription('Use work email Enter a valid address');
+  });
+
+  it('links summary errors back to fields', () => {
+    render(
+      <ErrorSummary
+        title="Correct the fields"
+        errors={[{ fieldId: 'work-email', message: 'Enter a valid address' }]}
+      />,
+    );
+    expect(screen.getByRole('alert').querySelector('a')).toHaveAttribute('href', '#work-email');
+  });
+});