Merge pull request #15895 from overleaf/jpa-latexqc-fetch-backend

[latexqc] migrate backend from axios to fetch

GitOrigin-RevId: 6dc1a9ca0aa96da01229fec96d3c4b34750f4aa2

libraries/fetch-utils/test/unit/FetchUtilsTests.js

@@ -7,6 +7,7 @@ const {
   fetchJson,
   fetchStream,
   fetchNothing,
+  fetchRedirect,
   fetchString,
   RequestFailedError,
 } = require('../..')
@@ -205,6 +206,36 @@ describe('fetch-utils', function () {
       await expectRequestAborted(this.server.lastReq)
     })
   })
+
+  describe('fetchRedirect', function () {
+    it('returns the immediate redirect', async function () {
+      const body = await fetchRedirect(this.url('/redirect/1'))
+      expect(body).to.equal(this.url('/redirect/2'))
+    })
+
+    it('rejects status 200', async function () {
+      await expect(fetchRedirect(this.url('/hello'))).to.be.rejectedWith(
+        RequestFailedError
+      )
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('rejects empty redirect', async function () {
+      await expect(fetchRedirect(this.url('/redirect/empty-location')))
+        .to.be.rejectedWith(RequestFailedError)
+        .and.eventually.have.property('cause')
+        .and.to.have.property('message')
+        .to.equal('missing Location response header on 3xx response')
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('handles errors', async function () {
+      await expect(fetchRedirect(this.url('/500'))).to.be.rejectedWith(
+        RequestFailedError
+      )
+      await expectRequestAborted(this.server.lastReq)
+    })
+  })
 })
 
 async function streamToString(stream) {

libraries/fetch-utils/test/unit/helpers/TestServer.js

@@ -73,6 +73,18 @@ class TestServer {
     // Never returns
 
     this.app.post('/hang', (req, res) => {})
+
+    // Redirect
+
+    this.app.get('/redirect/1', (req, res) => {
+      res.redirect('/redirect/2')
+    })
+    this.app.get('/redirect/2', (req, res) => {
+      res.send('body after redirect')
+    })
+    this.app.get('/redirect/empty-location', (req, res) => {
+      res.sendStatus(302)
+    })
   }
 
   start(port) {