test: add comprehensive tests for use-template-detail hook
Add complete test coverage for use-template-detail hook including: - Initial state verification - Execute function with success and error cases - Loading state management - Refetch functionality - Error handling and clearing All tests passing (10/10). Hook already has complete loading states and refetch functionality as documented in REVIEW.md. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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import { renderHook, act } from '@testing-library/react-native'
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import { useTemplateDetail } from './use-template-detail'
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import { root } from '@repo/core'
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import { TemplateController } from '@repo/sdk'
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import { handleError } from './use-error'
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jest.mock('@repo/core', () => ({
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root: {
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get: jest.fn(),
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},
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}))
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jest.mock('./use-error', () => ({
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handleError: jest.fn(async (cb) => {
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try {
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const data = await cb()
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return { data, error: null }
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} catch (e) {
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return { data: null, error: e }
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}
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}),
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}))
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describe('useTemplateDetail', () => {
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beforeEach(() => {
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jest.clearAllMocks()
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})
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afterEach(() => {
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jest.restoreAllMocks()
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})
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describe('initial state', () => {
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it('should return initial state with no data', () => {
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const { result } = renderHook(() => useTemplateDetail())
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expect(result.current.data).toBeUndefined()
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expect(result.current.loading).toBe(false)
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expect(result.current.error).toBeNull()
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})
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})
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describe('execute function', () => {
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it('should load template detail successfully', async () => {
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const mockData = {
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id: 'template-1',
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name: 'Test Template',
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description: 'Test Description',
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}
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const mockController = {
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get: jest.fn().mockResolvedValue(mockData),
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}
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;(root.get as jest.Mock).mockReturnValue(mockController)
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const { result } = renderHook(() => useTemplateDetail())
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await act(async () => {
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await result.current.execute({ id: 'template-1' })
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})
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expect(mockController.get).toHaveBeenCalledWith('template-1')
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expect(result.current.data).toEqual(mockData)
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expect(result.current.error).toBeNull()
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})
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it('should handle API errors', async () => {
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const mockError = {
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status: 404,
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statusText: 'Not Found',
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message: 'Template not found',
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}
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const mockController = {
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get: jest.fn().mockRejectedValue(mockError),
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}
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;(root.get as jest.Mock).mockReturnValue(mockController)
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const { result } = renderHook(() => useTemplateDetail())
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await act(async () => {
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await result.current.execute({ id: 'invalid-id' })
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})
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expect(result.current.error).toEqual(mockError)
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expect(result.current.data).toBeUndefined()
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})
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it('should return error in response when API fails', async () => {
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const mockError = {
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status: 500,
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statusText: 'Internal Server Error',
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message: 'Server error',
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}
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const mockController = {
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get: jest.fn().mockRejectedValue(mockError),
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}
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;(root.get as jest.Mock).mockReturnValue(mockController)
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const { result } = renderHook(() => useTemplateDetail())
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let response
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await act(async () => {
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response = await result.current.execute({ id: 'template-1' })
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})
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expect(response).toEqual({ data: undefined, error: mockError })
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})
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it('should return data in response when API succeeds', async () => {
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const mockData = {
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id: 'template-1',
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name: 'Test Template',
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}
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const mockController = {
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get: jest.fn().mockResolvedValue(mockData),
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}
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;(root.get as jest.Mock).mockReturnValue(mockController)
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const { result } = renderHook(() => useTemplateDetail())
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let response
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await act(async () => {
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response = await result.current.execute({ id: 'template-1' })
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})
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expect(response).toEqual({ data: mockData, error: null })
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})
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})
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describe('loading state', () => {
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it('should set loading to true during fetch', async () => {
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let resolveFetch: (value: any) => void
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const fetchPromise = new Promise((resolve) => {
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resolveFetch = resolve
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})
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const mockController = {
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get: jest.fn().mockReturnValue(fetchPromise),
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}
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;(root.get as jest.Mock).mockReturnValue(mockController)
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const { result } = renderHook(() => useTemplateDetail())
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act(() => {
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result.current.execute({ id: 'template-1' })
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})
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expect(result.current.loading).toBe(true)
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await act(async () => {
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resolveFetch!({ id: 'template-1', name: 'Test' })
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await fetchPromise
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})
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expect(result.current.loading).toBe(false)
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})
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it('should set loading to false after error', async () => {
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const mockError = { status: 500, statusText: 'Error', message: 'Error' }
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const mockController = {
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get: jest.fn().mockRejectedValue(mockError),
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}
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;(root.get as jest.Mock).mockReturnValue(mockController)
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const { result } = renderHook(() => useTemplateDetail())
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await act(async () => {
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await result.current.execute({ id: 'template-1' })
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})
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expect(result.current.loading).toBe(false)
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})
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})
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describe('refetch function', () => {
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it('should reload template data', async () => {
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const initialData = {
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id: 'template-1',
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name: 'Initial Name',
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}
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const refreshedData = {
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id: 'template-1',
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name: 'Updated Name',
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}
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const mockController = {
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get: jest.fn()
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.mockResolvedValueOnce(initialData)
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.mockResolvedValueOnce(refreshedData),
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}
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;(root.get as jest.Mock).mockReturnValue(mockController)
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const { result } = renderHook(() => useTemplateDetail())
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await act(async () => {
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await result.current.execute({ id: 'template-1' })
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})
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expect(result.current.data).toEqual(initialData)
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await act(async () => {
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await result.current.refetch({ id: 'template-1' })
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})
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expect(result.current.data).toEqual(refreshedData)
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expect(mockController.get).toHaveBeenCalledTimes(2)
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})
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it('should call execute with same params', async () => {
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const mockData = { id: 'template-1', name: 'Test' }
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const mockController = {
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get: jest.fn().mockResolvedValue(mockData),
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}
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;(root.get as jest.Mock).mockReturnValue(mockController)
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const { result } = renderHook(() => useTemplateDetail())
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await act(async () => {
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await result.current.refetch({ id: 'template-1' })
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})
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expect(mockController.get).toHaveBeenCalledWith('template-1')
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})
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})
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describe('error handling', () => {
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it('should clear error on successful execute', async () => {
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const mockError = { status: 500, statusText: 'Error', message: 'Error' }
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const mockData = { id: 'template-1', name: 'Test' }
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const mockController = {
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get: jest.fn()
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.mockRejectedValueOnce(mockError)
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.mockResolvedValueOnce(mockData),
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}
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;(root.get as jest.Mock).mockReturnValue(mockController)
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const { result } = renderHook(() => useTemplateDetail())
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await act(async () => {
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await result.current.execute({ id: 'template-1' })
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})
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expect(result.current.error).toEqual(mockError)
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await act(async () => {
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await result.current.execute({ id: 'template-1' })
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})
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expect(result.current.error).toBeNull()
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})
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})
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})
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