dify/web/app/components/datasets/create-from-pipeline/__tests__/index.spec.tsx

import { render, screen } from '@testing-library/react'
import { describe, expect, it, vi } from 'vitest'
import CreateFromPipeline from '../index'

// Mock child components to isolate testing
vi.mock('../header', () => ({
  default: () => <div data-testid="mock-header">Header</div>,
}))

vi.mock('../list', () => ({
  default: () => <div data-testid="mock-list">List</div>,
}))

vi.mock('../footer', () => ({
  default: () => <div data-testid="mock-footer">Footer</div>,
}))

vi.mock('../../../base/effect', () => ({
  default: ({ className }: { className?: string }) => (
    <div data-testid="mock-effect" className={className}>
      Effect
    </div>
  ),
}))

// CreateFromPipeline Component Tests

describe('CreateFromPipeline', () => {
  describe('Rendering', () => {
    it('should render without crashing', () => {
      render(<CreateFromPipeline />)
      expect(screen.getByTestId('mock-header')).toBeInTheDocument()
    })

    it('should render Header component', () => {
      render(<CreateFromPipeline />)
      expect(screen.getByTestId('mock-header')).toBeInTheDocument()
    })

    it('should render List component', () => {
      render(<CreateFromPipeline />)
      expect(screen.getByTestId('mock-list')).toBeInTheDocument()
    })

    it('should render Footer component', () => {
      render(<CreateFromPipeline />)
      expect(screen.getByTestId('mock-footer')).toBeInTheDocument()
    })

    it('should render Effect component', () => {
      render(<CreateFromPipeline />)
      expect(screen.getByTestId('mock-effect')).toBeInTheDocument()
    })
  })

  describe('Layout', () => {
    it('should have proper container classes', () => {
      const { container } = render(<CreateFromPipeline />)
      const mainDiv = container.firstChild as HTMLElement
      expect(mainDiv).toHaveClass(
        'relative',
        'flex',
        'flex-col',
        'overflow-hidden',
        'rounded-t-2xl',
      )
    })

    it('should have correct height calculation', () => {
      const { container } = render(<CreateFromPipeline />)
      const mainDiv = container.firstChild as HTMLElement
      expect(mainDiv).toHaveClass('h-[calc(100vh-56px)]')
    })

    it('should have border and background styling', () => {
      const { container } = render(<CreateFromPipeline />)
      const mainDiv = container.firstChild as HTMLElement
      expect(mainDiv).toHaveClass(
        'border-t',
        'border-effects-highlight',
        'bg-background-default-subtle',
      )
    })

    it('should position Effect component correctly', () => {
      render(<CreateFromPipeline />)
      const effect = screen.getByTestId('mock-effect')
      expect(effect).toHaveClass('left-8', 'top-[-34px]', 'opacity-20')
    })
  })

  // Component Order Tests
  describe('Component Order', () => {
    it('should render components in correct order', () => {
      const { container } = render(<CreateFromPipeline />)
      const children = Array.from(container.firstChild?.childNodes || [])

      // Effect, Header, List, Footer
      expect(children.length).toBe(4)
    })
  })
})