feat(simulations): config par tâche + hook useTimer + 7 tests

src/features/simulations/hooks/__tests__/useTimer.test.ts

@@ -0,0 +1,100 @@
+/**
+ * Tests du hook useTimer — logique de décompte critique (auto-submit à l'expiration).
+ */
+
+import { act, renderHook } from '@testing-library/react'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+import { useTimer } from '../useTimer'
+
+describe('useTimer', () => {
+  beforeEach(() => {
+    vi.useFakeTimers()
+  })
+
+  afterEach(() => {
+    vi.useRealTimers()
+  })
+
+  it('initialise secondesRestantes à dureeMinutes × 60', () => {
+    const { result } = renderHook(() => useTimer(10, true))
+    expect(result.current.secondesRestantes).toBe(600)
+    expect(result.current.isExpired).toBe(false)
+  })
+
+  it('décrémente de 1 par seconde quand active=true', () => {
+    const { result } = renderHook(() => useTimer(1, true))
+    expect(result.current.secondesRestantes).toBe(60)
+
+    act(() => {
+      vi.advanceTimersByTime(1000)
+    })
+    expect(result.current.secondesRestantes).toBe(59)
+
+    act(() => {
+      vi.advanceTimersByTime(3000)
+    })
+    expect(result.current.secondesRestantes).toBe(56)
+  })
+
+  it('ne décrémente pas quand active=false', () => {
+    const { result } = renderHook(() => useTimer(1, false))
+    expect(result.current.secondesRestantes).toBe(60)
+
+    act(() => {
+      vi.advanceTimersByTime(5000)
+    })
+    expect(result.current.secondesRestantes).toBe(60)
+    expect(result.current.isExpired).toBe(false)
+  })
+
+  it('passe isExpired=true quand secondesRestantes atteint 0', () => {
+    const { result } = renderHook(() => useTimer(1 / 60, true)) // 1 seconde
+    expect(result.current.secondesRestantes).toBe(1)
+
+    act(() => {
+      vi.advanceTimersByTime(1000)
+    })
+    expect(result.current.secondesRestantes).toBe(0)
+    expect(result.current.isExpired).toBe(true)
+  })
+
+  it("n'évolue pas sous zéro", () => {
+    const { result } = renderHook(() => useTimer(1 / 60, true)) // 1 seconde
+    act(() => {
+      vi.advanceTimersByTime(5000)
+    })
+    expect(result.current.secondesRestantes).toBe(0)
+    expect(result.current.isExpired).toBe(true)
+  })
+
+  it('reset() restaure la valeur initiale', () => {
+    const { result } = renderHook(() => useTimer(1, true))
+    act(() => {
+      vi.advanceTimersByTime(10000)
+    })
+    expect(result.current.secondesRestantes).toBe(50)
+
+    act(() => {
+      result.current.reset()
+    })
+    expect(result.current.secondesRestantes).toBe(60)
+    expect(result.current.isExpired).toBe(false)
+  })
+
+  it('reprend le décompte quand active passe de false à true sans reset', () => {
+    const { result, rerender } = renderHook(({ active }) => useTimer(1, active), {
+      initialProps: { active: false },
+    })
+
+    act(() => {
+      vi.advanceTimersByTime(3000)
+    })
+    expect(result.current.secondesRestantes).toBe(60)
+
+    rerender({ active: true })
+    act(() => {
+      vi.advanceTimersByTime(2000)
+    })
+    expect(result.current.secondesRestantes).toBe(58)
+  })
+})