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import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest'
import { renderHook, waitFor, act } from '@testing-library/react'
import { server } from '../../mocks/server'
import { errorHandlers } from '../../mocks/handlers'
import { useSegmentation } from '../useSegmentation'
describe('useSegmentation', () => {
beforeEach(() => {
vi.useFakeTimers({ shouldAdvanceTime: true })
})
afterEach(() => {
vi.useRealTimers()
})
it('starts with null result and not loading', () => {
const { result } = renderHook(() => useSegmentation())
expect(result.current.result).toBeNull()
expect(result.current.isLoading).toBe(false)
expect(result.current.error).toBeNull()
expect(result.current.jobStatus).toBeNull()
})
it('sets loading state and job status during segmentation', async () => {
const { result } = renderHook(() => useSegmentation())
act(() => {
result.current.runSegmentation('sub-stroke0001')
})
expect(result.current.isLoading).toBe(true)
// Wait for job to be created
await waitFor(() => {
expect(result.current.jobId).toBeDefined()
})
expect(result.current.jobStatus).toBeDefined()
})
it('returns result on job completion', async () => {
const { result } = renderHook(() => useSegmentation())
act(() => {
result.current.runSegmentation('sub-stroke0001')
})
// Wait for job creation
await waitFor(() => {
expect(result.current.jobId).toBeDefined()
})
// Advance time to allow job to complete (mock jobs complete in ~3s)
await act(async () => {
await vi.advanceTimersByTimeAsync(5000)
})
await waitFor(() => {
expect(result.current.isLoading).toBe(false)
expect(result.current.result).not.toBeNull()
})
expect(result.current.result?.metrics.caseId).toBe('sub-stroke0001')
expect(result.current.result?.metrics.diceScore).toBe(0.847)
expect(result.current.result?.dwiUrl).toContain('dwi.nii.gz')
})
it('shows progress updates during job execution', async () => {
const { result } = renderHook(() => useSegmentation())
act(() => {
result.current.runSegmentation('sub-stroke0001')
})
// Wait for job to start
await waitFor(() => {
expect(result.current.jobId).toBeDefined()
})
// Progress should be tracked
expect(result.current.progress).toBeGreaterThanOrEqual(0)
expect(result.current.progressMessage).toBeDefined()
})
it('sets error on job creation failure', async () => {
server.use(errorHandlers.segmentCreateError)
const { result } = renderHook(() => useSegmentation())
act(() => {
result.current.runSegmentation('sub-stroke0001')
})
await waitFor(() => {
expect(result.current.isLoading).toBe(false)
})
expect(result.current.error).toMatch(/failed to create job/i)
expect(result.current.result).toBeNull()
})
it('clears previous error on new request', async () => {
server.use(errorHandlers.segmentCreateError)
const { result } = renderHook(() => useSegmentation())
// First request fails
act(() => {
result.current.runSegmentation('sub-stroke0001')
})
await waitFor(() => {
expect(result.current.error).not.toBeNull()
})
// Reset to success handler
server.resetHandlers()
// Second request should clear error
act(() => {
result.current.runSegmentation('sub-stroke0001')
})
expect(result.current.error).toBeNull()
expect(result.current.isLoading).toBe(true)
})
it('can cancel a running job', async () => {
const { result } = renderHook(() => useSegmentation())
act(() => {
result.current.runSegmentation('sub-stroke0001')
})
await waitFor(() => {
expect(result.current.isLoading).toBe(true)
})
// Cancel the job
act(() => {
result.current.cancelJob()
})
expect(result.current.isLoading).toBe(false)
expect(result.current.jobStatus).toBeNull()
})
it('cleans up polling on unmount', async () => {
const { result, unmount } = renderHook(() => useSegmentation())
act(() => {
result.current.runSegmentation('sub-stroke0001')
})
await waitFor(() => {
expect(result.current.isLoading).toBe(true)
})
// Unmount should not throw
unmount()
})
})
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