overleaf/services/web/test/frontend/components/pdf-preview/pdf-js-viewer.spec.tsx

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import { EditorProviders } from '../../helpers/editor-providers'
import PdfJsViewer from '../../../../frontend/js/features/pdf-preview/components/pdf-js-viewer'
import { mockScope } from './scope'
import { getContainerEl } from 'cypress/react'
import { unmountComponentAtNode } from 'react-dom'
describe('<PdfJSViewer/>', function () {
beforeEach(function () {
cy.interceptCompile()
cy.interceptEvents()
})
it('loads all PDF pages', function () {
const scope = mockScope()
cy.mount(
<EditorProviders scope={scope}>
<div className="pdf-viewer">
<PdfJsViewer url="/build/123/output.pdf" />
</div>
</EditorProviders>
)
cy.findByLabelText('Page 1')
cy.findByLabelText('Page 2')
cy.findByLabelText('Page 3')
cy.findByLabelText('Page 4').should('not.exist')
cy.contains('Your Paper')
})
it('renders pages in a "loading" state', function () {
const scope = mockScope()
cy.mount(
<EditorProviders scope={scope}>
<div className="pdf-viewer">
<PdfJsViewer url="/build/123/output.pdf" />
</div>
</EditorProviders>
)
cy.findByLabelText('Loading…')
})
it('can be unmounted while loading a document', function () {
const scope = mockScope()
cy.mount(
<EditorProviders scope={scope}>
<div className="pdf-viewer">
<PdfJsViewer url="/build/123/output.pdf" />
</div>
</EditorProviders>
)
cy.then(() => unmountComponentAtNode(getContainerEl()))
})
it('can be unmounted after loading a document', function () {
const scope = mockScope()
cy.mount(
<EditorProviders scope={scope}>
<div className="pdf-viewer">
<PdfJsViewer url="/build/123/output.pdf" />
</div>
</EditorProviders>
)
cy.findByLabelText('Page 1')
cy.then(() => unmountComponentAtNode(getContainerEl()))
})
})