Merge pull request #14029 from overleaf/bg-csh-kustomize-spelling-2

kustomize spelling

GitOrigin-RevId: 5b5203c5de92c3443741cabc081df7afe1063e71

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

@@ -0,0 +1,230 @@
+const { expect } = require('chai')
+const { FetchError, AbortError } = require('node-fetch')
+const { Readable } = require('stream')
+const { once } = require('events')
+const { TestServer } = require('./helpers/TestServer')
+const {
+  fetchJson,
+  fetchStream,
+  fetchNothing,
+  fetchString,
+  RequestFailedError,
+} = require('../..')
+
+const PORT = 30001
+
+describe('fetch-utils', function () {
+  before(async function () {
+    this.server = new TestServer()
+    await this.server.start(PORT)
+    this.url = path => `http://localhost:${PORT}${path}`
+  })
+
+  after(async function () {
+    await this.server.stop()
+  })
+
+  describe('fetchJson', function () {
+    it('parses a JSON response', async function () {
+      const json = await fetchJson(this.url('/json/hello'))
+      expect(json).to.deep.equal({ msg: 'hello' })
+    })
+
+    it('parses JSON in the request', async function () {
+      const json = await fetchJson(this.url('/json/add'), {
+        method: 'POST',
+        json: { a: 2, b: 3 },
+      })
+      expect(json).to.deep.equal({ sum: 5 })
+    })
+
+    it('accepts stringified JSON as body', async function () {
+      const json = await fetchJson(this.url('/json/add'), {
+        method: 'POST',
+        body: JSON.stringify({ a: 2, b: 3 }),
+        headers: { 'Content-Type': 'application/json' },
+      })
+      expect(json).to.deep.equal({ sum: 5 })
+    })
+
+    it('throws a FetchError when the payload is not JSON', async function () {
+      await expect(fetchJson(this.url('/hello'))).to.be.rejectedWith(FetchError)
+    })
+
+    it('aborts the request if JSON parsing fails', async function () {
+      await expect(fetchJson(this.url('/large'))).to.be.rejectedWith(FetchError)
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('handles errors when the payload is JSON', async function () {
+      await expect(fetchJson(this.url('/json/500'))).to.be.rejectedWith(
+        RequestFailedError
+      )
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('handles errors when the payload is not JSON', async function () {
+      await expect(fetchJson(this.url('/500'))).to.be.rejectedWith(
+        RequestFailedError
+      )
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('supports abort signals', async function () {
+      await expect(
+        fetchJson(this.url('/hang'), { signal: AbortSignal.timeout(10) })
+      ).to.be.rejectedWith(AbortError)
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('supports basic auth', async function () {
+      const json = await fetchJson(this.url('/json/basic-auth'), {
+        basicAuth: { user: 'user', password: 'pass' },
+      })
+      expect(json).to.deep.equal({ key: 'verysecret' })
+    })
+
+    it("destroys the request body if it doesn't get consumed", async function () {
+      const stream = Readable.from(infiniteIterator())
+      await fetchJson(this.url('/json/ignore-request'), {
+        method: 'POST',
+        body: stream,
+      })
+      expect(stream.destroyed).to.be.true
+    })
+  })
+
+  describe('fetchStream', function () {
+    it('returns a stream', async function () {
+      const stream = await fetchStream(this.url('/large'))
+      const text = await streamToString(stream)
+      expect(text).to.equal(this.server.largePayload)
+    })
+
+    it('aborts the request when the stream is destroyed', async function () {
+      const stream = await fetchStream(this.url('/large'))
+      stream.destroy()
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('aborts the request when the request body is destroyed', async function () {
+      const stream = Readable.from(infiniteIterator())
+      const promise = fetchStream(this.url('/hang'), {
+        method: 'POST',
+        body: stream,
+      })
+      stream.destroy()
+      await expect(promise).to.be.rejectedWith(AbortError)
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('handles errors', async function () {
+      await expect(fetchStream(this.url('/500'))).to.be.rejectedWith(
+        RequestFailedError
+      )
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('supports abort signals', async function () {
+      await expect(
+        fetchStream(this.url('/hang'), { signal: AbortSignal.timeout(10) })
+      ).to.be.rejectedWith(AbortError)
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('destroys the request body when an error occurs', async function () {
+      const stream = Readable.from(infiniteIterator())
+      await expect(
+        fetchStream(this.url('/hang'), {
+          body: stream,
+          signal: AbortSignal.timeout(10),
+        })
+      ).to.be.rejectedWith(AbortError)
+      expect(stream.destroyed).to.be.true
+    })
+  })
+
+  describe('fetchNothing', function () {
+    it('closes the connection', async function () {
+      await fetchNothing(this.url('/large'))
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('aborts the request when the request body is destroyed', async function () {
+      const stream = Readable.from(infiniteIterator())
+      const promise = fetchNothing(this.url('/hang'), {
+        method: 'POST',
+        body: stream,
+      })
+      stream.destroy()
+      await expect(promise).to.be.rejectedWith(AbortError)
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it("doesn't abort the request if the request body ends normally", async function () {
+      const stream = Readable.from('hello there')
+      await fetchNothing(this.url('/sink'), { method: 'POST', body: stream })
+    })
+
+    it('handles errors', async function () {
+      await expect(fetchNothing(this.url('/500'))).to.be.rejectedWith(
+        RequestFailedError
+      )
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('supports abort signals', async function () {
+      await expect(
+        fetchNothing(this.url('/hang'), { signal: AbortSignal.timeout(10) })
+      ).to.be.rejectedWith(AbortError)
+      await expectRequestAborted(this.server.lastReq)
+    })
+
+    it('destroys the request body when an error occurs', async function () {
+      const stream = Readable.from(infiniteIterator())
+      await expect(
+        fetchNothing(this.url('/hang'), {
+          body: stream,
+          signal: AbortSignal.timeout(10),
+        })
+      ).to.be.rejectedWith(AbortError)
+      expect(stream.destroyed).to.be.true
+    })
+  })
+
+  describe('fetchString', function () {
+    it('returns a string', async function () {
+      const body = await fetchString(this.url('/hello'))
+      expect(body).to.equal('hello')
+    })
+
+    it('handles errors', async function () {
+      await expect(fetchJson(this.url('/500'))).to.be.rejectedWith(
+        RequestFailedError
+      )
+      await expectRequestAborted(this.server.lastReq)
+    })
+  })
+})
+
+async function streamToString(stream) {
+  let s = ''
+  for await (const chunk of stream) {
+    s += chunk
+  }
+  return s
+}
+
+async function* infiniteIterator() {
+  let i = 1
+  while (true) {
+    yield `chunk ${i++}\n`
+  }
+}
+
+async function expectRequestAborted(req) {
+  if (!req.destroyed) {
+    await once(req, 'close')
+    expect(req.destroyed).to.be.true
+  }
+}