60 行
1.9 KiB
TypeScript
60 行
1.9 KiB
TypeScript
import { fireEvent, render, screen } from '@testing-library/react'
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import { beforeEach, describe, expect, it, vi } from 'vitest'
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import PostImportThumbnailPreview from '@/components/posts/import/PostImportThumbnailPreview'
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describe ('PostImportThumbnailPreview', () => {
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beforeEach (() => {
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vi.clearAllMocks ()
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globalThis.URL.createObjectURL = vi.fn (() => 'blob:preview')
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globalThis.URL.revokeObjectURL = vi.fn ()
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})
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it ('renders the remote URL directly without a backend proxy', () => {
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render (
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<PostImportThumbnailPreview
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url="https://example.com/thumbnail.jpg"
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className="h-10 w-10"/>)
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expect (screen.getByRole ('img')).toHaveAttribute (
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'src',
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'https://example.com/thumbnail.jpg')
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expect (screen.getByRole ('img')).toHaveAttribute (
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'referrerpolicy',
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'no-referrer')
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})
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it ('shows the empty frame after the remote image fails', () => {
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const { container } = render (
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<PostImportThumbnailPreview
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url="https://example.com/missing.jpg"
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className="h-10 w-10"/>)
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fireEvent.error (screen.getByRole ('img'))
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expect (screen.queryByRole ('img')).toBeNull ()
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expect (container.querySelector ('div.rounded.border.bg-muted')).not.toBeNull ()
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expect (container.textContent).toBe ('')
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})
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it ('uses and revokes an object URL only when the remote URL is blank', () => {
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const file = new File (['image'], 'thumbnail.png', { type: 'image/png' })
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const { rerender, unmount } = render (
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<PostImportThumbnailPreview url="" file={file} className="h-10 w-10"/>)
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expect (screen.getByRole ('img')).toHaveAttribute ('src', 'blob:preview')
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rerender (
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<PostImportThumbnailPreview
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url="https://example.com/remote.jpg"
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file={file}
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className="h-10 w-10"/>)
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expect (screen.getByRole ('img')).toHaveAttribute (
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'src',
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'https://example.com/remote.jpg')
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unmount ()
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expect (globalThis.URL.revokeObjectURL).toHaveBeenCalledWith ('blob:preview')
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})
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})
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