M5-T06: add Energy device management UI and sidebar entry
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/**
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* Tests for EnergyPage (M5-T06).
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*
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* Coverage:
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* 1. Renders device list from GET /api/modbus/devices.
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* 2. Empty state when no devices.
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* 3. "New Device" button opens DeviceForm modal.
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* 4. Edit button opens DeviceForm modal pre-filled with device data.
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* 5. Delete button opens confirmation modal; confirm calls DELETE.
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* 6. Delete 409 error shows friendly hint in confirmation modal.
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* 7. Test-read button calls POST /api/modbus/devices/{uuid}/test and shows result.
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* 8. Test-read failure shows error in modal.
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*/
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import { describe, it, expect, vi, beforeEach } from 'vitest'
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import { screen, waitFor, fireEvent } from '@testing-library/react'
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import { renderWithProviders } from '../test-utils'
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import { EnergyPage } from './EnergyPage'
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// ---------------------------------------------------------------------------
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// Fixtures
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// ---------------------------------------------------------------------------
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const DEVICE = {
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uuid: 'abc-123',
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friendly_name: 'SDM120 Main',
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transport: 'tcp',
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host: '192.168.1.100',
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port: 502,
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unit_id: 1,
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profile: 'sdm120',
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poll_interval_s: 5,
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enabled: true,
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last_poll_at: '2026-06-22T10:00:00Z',
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last_poll_ok: true,
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created_at: '2026-06-01T00:00:00Z',
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updated_at: '2026-06-01T00:00:00Z',
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}
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const PROFILES_RESP = {
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profiles: [{ name: 'sdm120', description: 'Eastron SDM120 single-phase energy meter' }],
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}
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// ---------------------------------------------------------------------------
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// Mock apiClient
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// ---------------------------------------------------------------------------
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const mockGet = vi.fn()
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const mockPost = vi.fn()
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const mockDelete = vi.fn()
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const mockPatch = vi.fn()
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vi.mock('../api/client', () => ({
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default: {
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GET: (...args: unknown[]) => mockGet(...args),
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POST: (...args: unknown[]) => mockPost(...args),
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PATCH: (...args: unknown[]) => mockPatch(...args),
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DELETE: (...args: unknown[]) => mockDelete(...args),
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},
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ApiError: class ApiError extends Error {
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status: number
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body: unknown
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constructor(status: number, body: unknown) {
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super(`API error ${status}`)
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this.name = 'ApiError'
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this.status = status
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this.body = body
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}
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},
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registerLoginRedirect: vi.fn(),
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}))
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// ---------------------------------------------------------------------------
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// Helpers
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// ---------------------------------------------------------------------------
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function setupDefaultMocks(devices = [DEVICE]) {
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mockGet.mockImplementation((path: string) => {
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if (path === '/api/modbus/devices') {
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return Promise.resolve({ data: { items: devices, total: devices.length } })
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}
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if (path === '/api/modbus/profiles') {
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return Promise.resolve({ data: PROFILES_RESP })
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}
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return Promise.resolve({ data: null })
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})
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}
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function renderEnergy() {
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return renderWithProviders(<EnergyPage />, { initialPath: '/energy' })
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}
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// ---------------------------------------------------------------------------
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// Tests
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// ---------------------------------------------------------------------------
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describe('EnergyPage — device list', () => {
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beforeEach(() => {
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vi.clearAllMocks()
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setupDefaultMocks()
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})
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it('renders device list from GET /api/modbus/devices', async () => {
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renderEnergy()
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await waitFor(() => {
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expect(screen.getByTestId('devices-table')).toBeInTheDocument()
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})
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expect(screen.getByText('SDM120 Main')).toBeInTheDocument()
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expect(screen.getByText('192.168.1.100')).toBeInTheDocument()
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expect(screen.getByText('sdm120')).toBeInTheDocument()
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})
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it('shows empty state when no devices', async () => {
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setupDefaultMocks([])
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renderEnergy()
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await waitFor(() => {
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expect(screen.getByTestId('devices-empty')).toBeInTheDocument()
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})
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})
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it('shows loading state initially', () => {
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// Delay resolution so we can catch the loading state
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mockGet.mockReturnValue(new Promise(() => {}))
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renderEnergy()
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expect(screen.getByTestId('energy-loading')).toBeInTheDocument()
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})
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})
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describe('EnergyPage — create device', () => {
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beforeEach(() => {
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vi.clearAllMocks()
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setupDefaultMocks()
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})
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it('opens DeviceForm modal when New Device is clicked', async () => {
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renderEnergy()
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await waitFor(() => {
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expect(screen.getByTestId('device-new-button')).toBeInTheDocument()
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})
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fireEvent.click(screen.getByTestId('device-new-button'))
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// Wait for both modal AND the form (which appears after profiles load)
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await waitFor(() => {
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expect(screen.getByTestId('device-form-modal')).toBeInTheDocument()
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})
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await waitFor(() => {
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expect(screen.getByTestId('device-form')).toBeInTheDocument()
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})
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expect(screen.getByTestId('device-friendly-name')).toBeInTheDocument()
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expect(screen.getByTestId('device-host')).toBeInTheDocument()
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})
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it('submit on new device form calls POST /api/modbus/devices', async () => {
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mockPost.mockResolvedValue({ data: DEVICE })
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renderEnergy()
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await waitFor(() => expect(screen.getByTestId('device-new-button')).toBeInTheDocument())
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fireEvent.click(screen.getByTestId('device-new-button'))
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// Wait for profiles to load so the form is visible (profiles auto-select sdm120)
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await waitFor(() => expect(screen.getByTestId('device-form')).toBeInTheDocument())
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// Fill required fields (profile is auto-selected to 'sdm120')
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fireEvent.change(screen.getByTestId('device-friendly-name'), {
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target: { value: 'Test Device' },
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})
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fireEvent.change(screen.getByTestId('device-host'), {
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target: { value: '10.0.0.1' },
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})
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fireEvent.submit(screen.getByTestId('device-form'))
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await waitFor(() => {
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expect(mockPost).toHaveBeenCalledWith(
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'/api/modbus/devices',
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expect.objectContaining({
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body: expect.objectContaining({
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friendly_name: 'Test Device',
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host: '10.0.0.1',
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profile: 'sdm120',
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}),
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}),
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)
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})
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})
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})
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describe('EnergyPage — edit device', () => {
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beforeEach(() => {
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vi.clearAllMocks()
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setupDefaultMocks()
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})
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it('opens DeviceForm modal with device data when Edit is clicked', async () => {
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renderEnergy()
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await waitFor(() => {
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expect(screen.getByTestId(`device-edit-${DEVICE.uuid}`)).toBeInTheDocument()
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})
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fireEvent.click(screen.getByTestId(`device-edit-${DEVICE.uuid}`))
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await waitFor(() => {
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expect(screen.getByTestId('device-form-modal')).toBeInTheDocument()
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})
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// Wait for profiles to load so form body is visible
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await waitFor(() => {
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expect(screen.getByTestId('device-form')).toBeInTheDocument()
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})
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// UUID shown in edit mode
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expect(screen.getByTestId('device-uuid-display').textContent).toContain(DEVICE.uuid)
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})
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})
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describe('EnergyPage — delete device', () => {
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beforeEach(() => {
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vi.clearAllMocks()
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setupDefaultMocks()
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})
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it('shows confirmation modal on Delete click', async () => {
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renderEnergy()
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await waitFor(() => {
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expect(screen.getByTestId(`device-delete-${DEVICE.uuid}`)).toBeInTheDocument()
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})
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fireEvent.click(screen.getByTestId(`device-delete-${DEVICE.uuid}`))
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await waitFor(() => {
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expect(screen.getByTestId('device-delete-modal')).toBeInTheDocument()
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})
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expect(screen.getByTestId('device-delete-message').textContent).toContain('SDM120 Main')
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})
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it('calls DELETE on confirm and closes modal', async () => {
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mockDelete.mockResolvedValue({ data: null })
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renderEnergy()
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await waitFor(() => expect(screen.getByTestId(`device-delete-${DEVICE.uuid}`)).toBeInTheDocument())
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fireEvent.click(screen.getByTestId(`device-delete-${DEVICE.uuid}`))
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await waitFor(() => expect(screen.getByTestId('device-delete-confirm')).toBeInTheDocument())
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fireEvent.click(screen.getByTestId('device-delete-confirm'))
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await waitFor(() => {
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expect(mockDelete).toHaveBeenCalledWith('/api/modbus/devices/{uuid}', {
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params: { path: { uuid: DEVICE.uuid } },
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})
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})
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})
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it('cancel button closes confirmation modal', async () => {
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renderEnergy()
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await waitFor(() => expect(screen.getByTestId(`device-delete-${DEVICE.uuid}`)).toBeInTheDocument())
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fireEvent.click(screen.getByTestId(`device-delete-${DEVICE.uuid}`))
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await waitFor(() => expect(screen.getByTestId('device-delete-cancel')).toBeInTheDocument())
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fireEvent.click(screen.getByTestId('device-delete-cancel'))
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await waitFor(() => {
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expect(screen.queryByTestId('device-delete-modal')).not.toBeInTheDocument()
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})
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})
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it('shows friendly 409 hint when device has readings', async () => {
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const { ApiError } = await import('../api/client')
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mockDelete.mockRejectedValue(new ApiError(409, { detail: 'device has readings' }))
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renderEnergy()
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await waitFor(() => expect(screen.getByTestId(`device-delete-${DEVICE.uuid}`)).toBeInTheDocument())
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fireEvent.click(screen.getByTestId(`device-delete-${DEVICE.uuid}`))
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await waitFor(() => expect(screen.getByTestId('device-delete-confirm')).toBeInTheDocument())
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fireEvent.click(screen.getByTestId('device-delete-confirm'))
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await waitFor(() => {
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expect(screen.getByTestId('device-delete-409-hint')).toBeInTheDocument()
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})
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})
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})
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describe('EnergyPage — test-read', () => {
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beforeEach(() => {
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vi.clearAllMocks()
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setupDefaultMocks()
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})
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it('shows success payload modal after successful test-read', async () => {
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mockPost.mockResolvedValue({
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data: { ok: true, payload: { voltage: 230.2, current: 1.3 } },
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})
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renderEnergy()
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await waitFor(() => {
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expect(screen.getByTestId(`device-test-${DEVICE.uuid}`)).toBeInTheDocument()
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})
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fireEvent.click(screen.getByTestId(`device-test-${DEVICE.uuid}`))
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await waitFor(() => {
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expect(screen.getByTestId('test-read-modal')).toBeInTheDocument()
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})
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expect(screen.getByTestId('test-read-ok')).toBeInTheDocument()
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expect(screen.getByTestId('test-read-payload').textContent).toContain('230.2')
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})
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it('shows error modal after failed test-read', async () => {
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mockPost.mockResolvedValue({
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data: { ok: false, error: 'Connection timed out' },
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})
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renderEnergy()
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await waitFor(() => {
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expect(screen.getByTestId(`device-test-${DEVICE.uuid}`)).toBeInTheDocument()
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})
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fireEvent.click(screen.getByTestId(`device-test-${DEVICE.uuid}`))
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await waitFor(() => {
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expect(screen.getByTestId('test-read-modal')).toBeInTheDocument()
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})
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expect(screen.getByTestId('test-read-error')).toBeInTheDocument()
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expect(screen.getByTestId('test-read-error').textContent).toContain('Connection timed out')
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})
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})
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