portfolio/src/components/molecules/Availability.test.jsx

import React from 'react'
import { render } from '@testing-library/react'
import Availability from './Availability'
import { useStaticQuery } from 'gatsby'

describe('Availability', () => {
  it('renders correctly from data file values', () => {
    const { container } = render(<Availability />)
    expect(container.firstChild).toBeInTheDocument()
  })

  it('renders correctly when status: true', () => {
    useStaticQuery.mockImplementationOnce(() => {
      return {
        metaYaml: {
          availability: {
            status: true,
            available: 'I am available.',
            unavailable: 'Not available.'
          }
        }
      }
    })

    const { container } = render(<Availability />)
    expect(container.firstChild).toBeInTheDocument()
    expect(container.firstChild).toHaveTextContent('I am available.')
  })

  it('renders correctly when status: false', () => {
    useStaticQuery.mockImplementationOnce(() => {
      return {
        metaYaml: {
          availability: {
            status: false,
            available: 'I am available.',
            unavailable: 'Not available.'
          }
        }
      }
    })

    const { container } = render(<Availability />)
    expect(container.firstChild).toBeInTheDocument()
    expect(container.firstChild).toHaveTextContent('Not available.')
  })

  it('can be hidden', () => {
    const { container } = render(<Availability hide={true} />)
    expect(container.firstChild).not.toBeInTheDocument()
  })
})