overleaf/services/web/test/frontend/features/settings-modal/settings/compiler-setting.test.tsx

import { screen, within, render } from '@testing-library/react'
import { expect } from 'chai'
import fetchMock from 'fetch-mock'
import { SettingsModalProvider } from '@/features/ide-redesign/contexts/settings-modal-context'
import {
  EditorProviders,
  projectDefaults,
} from '../../../helpers/editor-providers'
import CompilerSetting from '@/features/settings/components/compiler-settings/compiler-setting'
import userEvent from '@testing-library/user-event'

const OPTIONS = [
  {
    label: 'pdfLaTeX',
    value: 'pdflatex',
  },
  {
    label: 'LaTeX',
    value: 'latex',
  },
  {
    label: 'XeLaTeX',
    value: 'xelatex',
  },
  {
    label: 'LuaLaTeX',
    value: 'lualatex',
  },
]

describe('<CompilerSetting />', function () {
  afterEach(function () {
    fetchMock.removeRoutes().clearHistory()
  })

  it('each option is shown and can be selected', async function () {
    render(
      <EditorProviders>
        <SettingsModalProvider>
          <CompilerSetting />
        </SettingsModalProvider>
      </EditorProviders>
    )

    const saveSettingsMock = fetchMock.post(
      `express:/project/:projectId/settings`,
      {
        status: 200,
      },
      { delay: 0 }
    )

    const select = screen.getByLabelText('Compiler')

    // Reverse order so we test changing to each option
    for (const option of OPTIONS.reverse()) {
      const optionElement = within(select).getByText(option.label)
      expect(optionElement.getAttribute('value')).to.equal(option.value)
      await userEvent.selectOptions(select, [optionElement])

      expect(
        saveSettingsMock.callHistory.called(
          `/project/${projectDefaults._id}/settings`,
          {
            body: { compiler: option.value },
          }
        )
      ).to.be.true
    }
  })
})