IncidentHistory.test.js
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	import { describe, it, expect, vi, beforeEach } from 'vitest'
	import { mount } from '@vue/test-utils'
	import { ref } from 'vue'
	import IncidentHistory from '@/views/IncidentHistory.vue'

	const mockIncidents = ref([])
	const mockLoading = ref(false)
	const mockFetchIncidents = vi.fn(() => Promise.resolve())

	vi.mock('@/composables/useIncidents', () => ({
	useIncidents: () => ({
	incidents: mockIncidents,
	loading: mockLoading,
	fetchIncidents: mockFetchIncidents,
	}),
	}))

	vi.mock('@/plugins/api', () => ({
	incidentsApi: {
	getById: vi.fn((id) => Promise.resolve({
	id,
	title: `Incident ${id}`,
	status: 'resolved',
	impact: 'minor',
	start_date: new Date().toISOString(),
	updates: [],
	})),
	},
	}))

	function mountIncidentHistory() {
	return mount(IncidentHistory, {
	global: {
	stubs: {
	'router-link': { template: '<a><slot /></a>' },
	IncidentTimeline: {
	template: '<div class="incident-timeline">{{ incident.title }}</div>',
	props: ['incident'],
	},
	},
	},
	})
	}

	describe('IncidentHistory', () => {
	beforeEach(() => {
	mockIncidents.value = []
	mockLoading.value = false
	vi.clearAllMocks()
	})

	it('renders page title', () => {
	const wrapper = mountIncidentHistory()
	expect(wrapper.text()).toContain('Incident History')
	})

	it('renders back to status link', () => {
	const wrapper = mountIncidentHistory()
	expect(wrapper.text()).toContain('Back to status')
	})

	it('renders all four filter buttons', () => {
	const wrapper = mountIncidentHistory()
	const buttons = wrapper.findAll('button')

	expect(buttons).toHaveLength(4)
	expect(buttons[0].text()).toBe('Last 7 Days')
	expect(buttons[1].text()).toBe('Last 30 Days')
	expect(buttons[2].text()).toBe('Last 90 Days')
	expect(buttons[3].text()).toBe('All')
	})

	it('highlights active filter button', () => {
	const wrapper = mountIncidentHistory()
	const buttons = wrapper.findAll('button')

	expect(buttons[0].classes()).toContain('bg-brand-500')
	expect(buttons[1].classes()).not.toContain('bg-brand-500')
	})

	it('changes active filter on click', async () => {
	const wrapper = mountIncidentHistory()
	const buttons = wrapper.findAll('button')

	await buttons[1].trigger('click')

	expect(buttons[1].classes()).toContain('bg-brand-500')
	expect(buttons[0].classes()).not.toContain('bg-brand-500')
	})

	it('shows empty state when no incidents', () => {
	const wrapper = mountIncidentHistory()
	expect(wrapper.text()).toContain('No incidents reported in this timeframe.')
	})

	it('shows loading spinner when loading', () => {
	mockLoading.value = true
	const wrapper = mountIncidentHistory()

	expect(wrapper.find('.animate-spin').exists()).toBe(true)
	expect(wrapper.text()).not.toContain('No incidents reported')
	})

	it('calls fetchIncidents on mount', () => {
	mountIncidentHistory()
	expect(mockFetchIncidents).toHaveBeenCalled()
	})
	})

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