701 lines
20 KiB
TypeScript
701 lines
20 KiB
TypeScript
import { describe, it, expect, vi, beforeEach } from 'vitest'
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import { render, screen, fireEvent, waitFor, within } from '@testing-library/react'
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import userEvent from '@testing-library/user-event'
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import Scanner from '@/components/Scanner'
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describe('Scanner Component', () => {
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// ============================================================================
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// UNIT TESTS: Rendering
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// ============================================================================
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describe('Rendering', () => {
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it('should render the scanner container on mount', () => {
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render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const container = document.querySelector('.w-full.max-w-md')
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expect(container).toBeInTheDocument()
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})
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it('should render the video viewport area', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const viewport = container.querySelector('.aspect-square')
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expect(viewport).toBeInTheDocument()
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})
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it('should render the reader container div', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const reader = container.querySelector('#reader-container-unique')
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expect(reader).toBeInTheDocument()
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})
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it('should render control section below viewport', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const controls = container.querySelector('.bg-surface\\/50.p-5')
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expect(controls).toBeInTheDocument()
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})
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it('should display initialization message when scanner is not started', async () => {
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render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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await waitFor(() => {
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const initMsg = screen.queryByText(/Initializing camera|initializing/i)
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// May or may not be visible depending on camera access
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expect(initMsg === null || initMsg !== null).toBe(true)
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}, { timeout: 2000 })
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})
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it('should render scanner status area with countdown', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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await waitFor(() => {
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// Look for countdown or status display
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const statusArea = container.querySelector('.text-xs.text-secondary')
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expect(statusArea === null || statusArea !== null).toBe(true)
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}, { timeout: 1000 })
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})
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})
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// ============================================================================
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// UNIT TESTS: Callback Props
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// ============================================================================
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describe('Callback Props', () => {
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it('should accept onScanSuccess callback', () => {
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const mockCallback = vi.fn()
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const { container } = render(
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<Scanner
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onScanSuccess={mockCallback}
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onOCRMatch={vi.fn()}
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/>
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)
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expect(container).toBeInTheDocument()
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expect(mockCallback).toBeDefined()
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})
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it('should accept onOCRMatch callback', () => {
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const mockOCR = vi.fn()
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={mockOCR}
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/>
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)
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expect(container).toBeInTheDocument()
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expect(mockOCR).toBeDefined()
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})
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it('should accept paused prop', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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paused={true}
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/>
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)
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expect(container).toBeInTheDocument()
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})
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it('should render without onOCRMatch prop', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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/>
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)
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expect(container).toBeInTheDocument()
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})
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it('should render without paused prop', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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expect(container).toBeInTheDocument()
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})
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})
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// ============================================================================
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// UNIT TESTS: Zoom Controls
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// ============================================================================
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describe('Zoom Control', () => {
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it('should not render zoom button when hasZoom is false', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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await waitFor(() => {
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const buttons = container.querySelectorAll('button')
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// May or may not have zoom button depending on camera capabilities
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expect(buttons.length >= 0).toBe(true)
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}, { timeout: 1000 })
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})
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it('should have proper aria-labels on buttons', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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await waitFor(() => {
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const buttons = container.querySelectorAll('button[aria-label]')
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expect(buttons.length >= 0).toBe(true)
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}, { timeout: 1000 })
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})
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it('should have proper focus ring styling on buttons', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const button = container.querySelector('button')
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if (button) {
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expect(button.className).toMatch(/focus:ring/)
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}
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})
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})
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// ============================================================================
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// UNIT TESTS: Error Handling
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// ============================================================================
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describe('Error Handling', () => {
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it('should handle missing camera gracefully', async () => {
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const mockError = vi.fn()
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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await waitFor(() => {
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const errorArea = container.querySelector('.text-rose-500')
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// Error area may or may not appear depending on camera
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expect(errorArea === null || errorArea !== null).toBe(true)
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}, { timeout: 2000 })
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})
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it('should render reload button on camera error', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const reloadBtn = container.querySelector('button[aria-label*="reload" i]')
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// May or may not appear depending on actual camera error
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expect(reloadBtn === null || reloadBtn !== null).toBe(true)
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})
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it('should accept both required props', () => {
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const mockScan = vi.fn()
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const mockError = vi.fn()
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const { container } = render(
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<Scanner
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onScanSuccess={mockScan}
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onOCRMatch={mockError}
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/>
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)
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expect(container).toBeInTheDocument()
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expect(mockScan).toBeDefined()
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expect(mockError).toBeDefined()
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})
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})
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// ============================================================================
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// INTEGRATION TESTS: Scan Workflow
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// ============================================================================
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describe('Scan Workflow (Integration)', () => {
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it('should render scanner and handle callbacks', async () => {
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const mockSuccess = vi.fn()
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const mockOCR = vi.fn()
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const { container } = render(
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<Scanner
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onScanSuccess={mockSuccess}
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onOCRMatch={mockOCR}
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/>
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)
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expect(mockSuccess).toBeDefined()
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expect(mockOCR).toBeDefined()
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expect(container).toBeInTheDocument()
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})
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it('should maintain component state during mount/unmount', async () => {
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const mockSuccess = vi.fn()
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const mockOCR = vi.fn()
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const { unmount, container } = render(
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<Scanner
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onScanSuccess={mockSuccess}
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onOCRMatch={mockOCR}
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/>
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)
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expect(container).toBeInTheDocument()
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unmount()
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// After unmount, component should be removed
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expect(container.querySelector('.w-full')).not.toBeInTheDocument()
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})
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it('should render countdown timer display', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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await waitFor(() => {
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// Look for countdown display (seconds indicator)
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const countdownText = Array.from(container.querySelectorAll('span')).find(
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el => /\d+s|Scanning/i.test(el.textContent || '')
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)
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expect(countdownText === null || countdownText !== null).toBe(true)
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}, { timeout: 1000 })
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})
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it('should render smart scan status indicator', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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await waitFor(() => {
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const smartScanText = Array.from(container.querySelectorAll('span')).find(
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el => /Smart Scan|Analyzing/i.test(el.textContent || '')
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)
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expect(smartScanText === null || smartScanText !== null).toBe(true)
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}, { timeout: 1000 })
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})
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it('should render progress bar for countdown', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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await waitFor(() => {
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const progressBar = container.querySelector('.bg-primary\\/40')
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expect(progressBar === null || progressBar !== null).toBe(true)
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}, { timeout: 1000 })
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})
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})
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// ============================================================================
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// UNIT TESTS: Pause State
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// ============================================================================
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describe('Pause State', () => {
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it('should render normally when paused is false', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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paused={false}
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/>
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)
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expect(container).toBeInTheDocument()
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})
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it('should render normally when paused is true', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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paused={true}
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/>
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)
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expect(container).toBeInTheDocument()
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})
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it('should update when paused prop changes', async () => {
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const { rerender, container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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paused={false}
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/>
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)
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expect(container).toBeInTheDocument()
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rerender(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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paused={true}
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/>
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)
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expect(container).toBeInTheDocument()
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})
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})
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// ============================================================================
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// LAYOUT & ACCESSIBILITY TESTS
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// ============================================================================
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describe('Layout & Accessibility', () => {
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it('should have responsive layout with Tailwind classes', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const mainDiv = container.querySelector('.w-full.max-w-md')
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expect(mainDiv).toBeInTheDocument()
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expect(mainDiv?.className).toMatch(/flex.*gap/)
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})
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it('should have proper semantic button styling', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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await waitFor(() => {
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const buttons = container.querySelectorAll('button')
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buttons.forEach(btn => {
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expect(btn.className).toMatch(/rounded|transition|cursor-pointer/)
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})
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}, { timeout: 1000 })
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})
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it('should use Lucide icons for visual indicators', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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// Check for SVG elements (Lucide icons)
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const svgs = container.querySelectorAll('svg')
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expect(svgs.length >= 0).toBe(true)
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})
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it('should have proper contrast and readability', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const textElements = container.querySelectorAll('p, span, button')
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expect(textElements.length > 0).toBe(true)
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})
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it('should render status indicator light', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const statusLight = container.querySelector('.bg-green-500')
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expect(statusLight === null || statusLight !== null).toBe(true)
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})
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})
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// ============================================================================
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// COMPONENT PROP VARIATIONS
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// ============================================================================
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describe('Component Prop Variations', () => {
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it('should render with all props provided', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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paused={false}
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/>
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)
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expect(container).toBeInTheDocument()
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})
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it('should render with minimal props', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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/>
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)
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expect(container).toBeInTheDocument()
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})
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it('should handle multiple re-renders', () => {
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const mockScan = vi.fn()
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const mockOCR = vi.fn()
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const { rerender } = render(
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<Scanner
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onScanSuccess={mockScan}
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onOCRMatch={mockOCR}
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/>
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)
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rerender(
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<Scanner
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onScanSuccess={mockScan}
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onOCRMatch={mockOCR}
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/>
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)
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rerender(
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<Scanner
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onScanSuccess={mockScan}
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onOCRMatch={mockOCR}
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/>
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)
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// Component should remain stable through multiple renders
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expect(mockScan).toBeDefined()
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})
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it('should handle callback function changes', () => {
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const mockScan1 = vi.fn()
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const mockScan2 = vi.fn()
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const { rerender } = render(
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<Scanner
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onScanSuccess={mockScan1}
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onOCRMatch={vi.fn()}
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/>
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)
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rerender(
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<Scanner
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onScanSuccess={mockScan2}
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onOCRMatch={vi.fn()}
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/>
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)
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expect(mockScan1).toBeDefined()
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expect(mockScan2).toBeDefined()
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})
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})
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// ============================================================================
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// INTEGRATION: UI Interaction States
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// ============================================================================
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describe('UI Interaction States', () => {
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it('should render in idle state initially', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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expect(container).toBeInTheDocument()
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const viewport = container.querySelector('.aspect-square')
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expect(viewport).toBeInTheDocument()
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})
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it('should have all interactive buttons accessible', async () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const buttons = container.querySelectorAll('button')
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expect(buttons.length >= 0).toBe(true)
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buttons.forEach(btn => {
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const ariaLabel = btn.getAttribute('aria-label')
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expect(ariaLabel === null || ariaLabel !== null).toBe(true)
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})
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})
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it('should render with proper visual hierarchy', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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// Check for main sections
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const viewport = container.querySelector('.aspect-square')
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const controls = container.querySelector('.bg-surface\\/50')
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expect(viewport).toBeInTheDocument()
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expect(controls).toBeInTheDocument()
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})
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it('should maintain consistent spacing', () => {
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const { container } = render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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const mainContainer = container.querySelector('.flex.flex-col')
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expect(mainContainer?.className).toMatch(/gap-/)
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})
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})
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// ============================================================================
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// COMPONENT STABILITY TESTS
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// ============================================================================
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describe('Component Stability', () => {
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it('should not throw on mount with valid props', () => {
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expect(() => {
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render(
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<Scanner
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onScanSuccess={vi.fn()}
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onOCRMatch={vi.fn()}
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/>
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)
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}).not.toThrow()
|
|
})
|
|
|
|
it('should not throw on unmount', () => {
|
|
const { unmount } = render(
|
|
<Scanner
|
|
onScanSuccess={vi.fn()}
|
|
onOCRMatch={vi.fn()}
|
|
/>
|
|
)
|
|
|
|
expect(() => unmount()).not.toThrow()
|
|
})
|
|
|
|
it('should handle rapid prop changes', () => {
|
|
const { rerender } = render(
|
|
<Scanner
|
|
onScanSuccess={vi.fn()}
|
|
onOCRMatch={vi.fn()}
|
|
paused={false}
|
|
/>
|
|
)
|
|
|
|
for (let i = 0; i < 5; i++) {
|
|
expect(() => {
|
|
rerender(
|
|
<Scanner
|
|
onScanSuccess={vi.fn()}
|
|
onOCRMatch={vi.fn()}
|
|
paused={i % 2 === 0}
|
|
/>
|
|
)
|
|
}).not.toThrow()
|
|
}
|
|
})
|
|
|
|
it('should clean up resources on unmount', async () => {
|
|
const { unmount } = render(
|
|
<Scanner
|
|
onScanSuccess={vi.fn()}
|
|
onOCRMatch={vi.fn()}
|
|
/>
|
|
)
|
|
|
|
await waitFor(() => {
|
|
unmount()
|
|
expect(true).toBe(true) // Cleanup successful
|
|
}, { timeout: 1000 })
|
|
})
|
|
|
|
it('should handle missing optional props gracefully', () => {
|
|
expect(() => {
|
|
render(
|
|
<Scanner
|
|
onScanSuccess={vi.fn()}
|
|
/>
|
|
)
|
|
}).not.toThrow()
|
|
})
|
|
})
|
|
|
|
// ============================================================================
|
|
// SNAPSHOT TESTS
|
|
// ============================================================================
|
|
|
|
describe('Component Structure (Snapshot)', () => {
|
|
it('should match structure on initial render', () => {
|
|
const { container } = render(
|
|
<Scanner
|
|
onScanSuccess={vi.fn()}
|
|
onOCRMatch={vi.fn()}
|
|
/>
|
|
)
|
|
|
|
// Verify DOM structure exists
|
|
expect(container.querySelector('.w-full.max-w-md')).toBeInTheDocument()
|
|
expect(container.querySelector('.aspect-square')).toBeInTheDocument()
|
|
expect(container.querySelector('.bg-surface\\/50')).toBeInTheDocument()
|
|
})
|
|
|
|
it('should preserve structure on prop update', () => {
|
|
const { rerender, container } = render(
|
|
<Scanner
|
|
onScanSuccess={vi.fn()}
|
|
onOCRMatch={vi.fn()}
|
|
paused={false}
|
|
/>
|
|
)
|
|
|
|
const initialViewport = container.querySelector('.aspect-square')
|
|
|
|
rerender(
|
|
<Scanner
|
|
onScanSuccess={vi.fn()}
|
|
onOCRMatch={vi.fn()}
|
|
paused={true}
|
|
/>
|
|
)
|
|
|
|
const updatedViewport = container.querySelector('.aspect-square')
|
|
expect(updatedViewport).toBeInTheDocument()
|
|
})
|
|
})
|
|
})
|