feat(M13): auto_pr toggle in product settings — server action + UI component + tests

__tests__/components/products/auto-pr-toggle.test.tsx

@@ -0,0 +1,46 @@
+// @vitest-environment jsdom
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import '@testing-library/jest-dom'
+
+vi.mock('@/actions/products', () => ({
+  updateAutoPrAction: vi.fn(),
+}))
+
+vi.mock('sonner', () => ({ toast: { error: vi.fn() } }))
+
+import { updateAutoPrAction } from '@/actions/products'
+import { AutoPrToggle } from '@/components/products/auto-pr-toggle'
+
+const mockAction = updateAutoPrAction as ReturnType<typeof vi.fn>
+
+beforeEach(() => {
+  vi.clearAllMocks()
+  mockAction.mockResolvedValue({ success: true })
+})
+
+describe('AutoPrToggle', () => {
+  it('renders in off state with aria-checked=false', () => {
+    render(<AutoPrToggle productId="prod-1" initialValue={false} />)
+    const toggle = screen.getByRole('switch')
+    expect(toggle).toHaveAttribute('aria-checked', 'false')
+  })
+
+  it('renders in on state with aria-checked=true', () => {
+    render(<AutoPrToggle productId="prod-1" initialValue={true} />)
+    const toggle = screen.getByRole('switch')
+    expect(toggle).toHaveAttribute('aria-checked', 'true')
+  })
+
+  it('calls updateAutoPrAction with true when toggled on', async () => {
+    render(<AutoPrToggle productId="prod-1" initialValue={false} />)
+    fireEvent.click(screen.getByRole('switch'))
+    expect(mockAction).toHaveBeenCalledWith('prod-1', true)
+  })
+
+  it('calls updateAutoPrAction with false when toggled off', async () => {
+    render(<AutoPrToggle productId="prod-1" initialValue={true} />)
+    fireEvent.click(screen.getByRole('switch'))
+    expect(mockAction).toHaveBeenCalledWith('prod-1', false)
+  })
+})