131 lines
3.5 KiB
JavaScript
131 lines
3.5 KiB
JavaScript
/**
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* @jest-environment jsdom
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*/
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import { graphql } from 'gatsby'
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import { createPages } from '../src/gatsby-node.js'
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jest.mock('gatsby', () => ({
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graphql: jest.fn(),
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actions: { createRedirect: jest.fn() }
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}))
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describe('createPages', () => {
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let pluginOptions
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let actions
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let consoleLogSpy
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const markdownQuery = 'allMarkdownRemark'
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const edges = [
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{
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node: {
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fields: { slug: '/post-1' },
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frontmatter: { redirect_from: ['/old-url-1', '/old-url-2'] }
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}
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},
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{
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node: {
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fields: { slug: '/post-2' },
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frontmatter: { redirect_from: ['/old-url-3'] }
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}
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}
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]
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beforeEach(() => {
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actions = { createRedirect: jest.fn() }
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pluginOptions = { query: 'allMarkdownRemark' }
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consoleLogSpy = jest.spyOn(console, 'log').mockImplementation(() => {})
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})
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afterEach(() => {
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jest.resetAllMocks()
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consoleLogSpy.mockRestore()
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})
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it('should create redirects for each post with a redirect_from field', async () => {
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const data = { q: { edges } }
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graphql.mockReturnValueOnce(Promise.resolve({ data }))
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const createRedirectSpy = jest.spyOn(actions, 'createRedirect')
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await createPages({ graphql, actions }, { query: markdownQuery })
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expect(createRedirectSpy).toHaveBeenCalledTimes(3)
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expect(createRedirectSpy).toHaveBeenCalledWith({
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fromPath: '/old-url-1',
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toPath: '/post-1',
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isPermanent: true,
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redirectInBrowser: true
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})
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expect(createRedirectSpy).toHaveBeenCalledWith({
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fromPath: '/old-url-2',
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toPath: '/post-1',
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isPermanent: true,
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redirectInBrowser: true
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})
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expect(createRedirectSpy).toHaveBeenCalledWith({
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fromPath: '/old-url-3',
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toPath: '/post-2',
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isPermanent: true,
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redirectInBrowser: true
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})
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createRedirectSpy.mockRestore()
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})
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it('should use pluginOptions.query when defined', async () => {
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const customQuery = 'someCustomQuery'
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pluginOptions.query = customQuery
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graphql.mockImplementation((queryString) => {
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expect(queryString).toContain(customQuery)
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return Promise.resolve({ data: { q: { edges: [] } } })
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})
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await createPages({ graphql, actions }, pluginOptions)
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})
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it('should default to allMarkdownRemark when pluginOptions.query is undefined', async () => {
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pluginOptions.query = undefined
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graphql.mockImplementation((queryString) => {
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expect(queryString).toContain('allMarkdownRemark')
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return Promise.resolve({ data: { q: { edges: [] } } })
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})
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await createPages({ graphql, actions }, pluginOptions)
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})
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it('should log a success message when redirects are created', async () => {
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const data = { q: { edges } }
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graphql.mockReturnValueOnce(Promise.resolve({ data }))
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const createRedirectSpy = jest.spyOn(actions, 'createRedirect')
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await createPages({ graphql, actions }, { query: markdownQuery })
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expect(createRedirectSpy).toHaveBeenCalledTimes(3)
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expect(console.log).toHaveBeenCalledWith(
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'%c %s %c %s',
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'color:green',
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'success',
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'color:none',
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'created 3 redirects'
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)
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})
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it('should log an error message when an error occurs', async () => {
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const error = new Error('GraphQL query failed')
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graphql.mockImplementationOnce(() => {
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throw error
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})
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const consoleSpy = jest.spyOn(console, 'error').mockImplementation(() => {})
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try {
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await createPages({ graphql, actions }, pluginOptions)
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} catch (error) {
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expect(console.error).toHaveBeenCalledWith('GraphQL query failed')
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}
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consoleSpy.mockRestore()
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})
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})
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