83 lines
2.6 KiB
TypeScript
83 lines
2.6 KiB
TypeScript
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/**
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* Tests for DsmrPanel — latest parsed DSMR telegram view.
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*
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* Coverage:
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* 1. Loading state.
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* 2. Empty state (found=false) with a helpful hint.
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* 3. Renders the payload as a key/value table; null values shown as "—".
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* 4. Error state.
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*/
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import { describe, it, expect, vi, beforeEach } from 'vitest'
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import { screen, waitFor } from '@testing-library/react'
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import { renderWithProviders } from '../test-utils'
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const mockGet = 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: vi.fn(),
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PATCH: vi.fn(),
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DELETE: vi.fn(),
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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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import { DsmrPanel } from './DsmrPanel'
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describe('DsmrPanel', () => {
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beforeEach(() => vi.clearAllMocks())
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it('renders loading state initially', () => {
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mockGet.mockImplementation(() => new Promise(() => {}))
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renderWithProviders(<DsmrPanel />)
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expect(screen.getByTestId('dsmr-loading')).toBeInTheDocument()
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})
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it('shows an empty hint when no DSMR data has been ingested', async () => {
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mockGet.mockResolvedValue({ data: { found: false, recorded_at: null, payload: null } })
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renderWithProviders(<DsmrPanel />)
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await waitFor(() => expect(screen.getByTestId('dsmr-empty')).toBeInTheDocument())
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expect(screen.queryByTestId('dsmr-table')).not.toBeInTheDocument()
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})
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it('renders the latest telegram as a key/value table; null shown as dash', async () => {
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mockGet.mockResolvedValue({
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data: {
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found: true,
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recorded_at: '2026-06-23T12:16:00Z',
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payload: {
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electricity_delivered_1: '20915.154',
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phase_voltage_l2: null,
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},
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},
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})
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renderWithProviders(<DsmrPanel />)
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await waitFor(() => expect(screen.getByTestId('dsmr-table')).toBeInTheDocument())
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// Field rows present (keys are sorted).
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expect(screen.getByTestId('dsmr-row-electricity_delivered_1')).toHaveTextContent('20915.154')
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// Null phase value rendered as an em dash, not omitted.
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expect(screen.getByTestId('dsmr-row-phase_voltage_l2')).toHaveTextContent('—')
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expect(screen.getByTestId('dsmr-recorded-at')).toBeInTheDocument()
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})
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it('renders an error state when the request fails', async () => {
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mockGet.mockRejectedValue(new Error('network down'))
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renderWithProviders(<DsmrPanel />)
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await waitFor(() => expect(screen.getByTestId('dsmr-error')).toBeInTheDocument())
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})
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})
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