1 files changed, 44 insertions, 0 deletions
diff --git a/test/jest/instanceof-error.test.js b/test/jest/instanceof-error.test.js
new file mode 100644
index 0000000..8bb36d2
--- /dev/null
+++ b/test/jest/instanceof-error.test.js
@@ -0,0 +1,44 @@
+'use strict'
+
+const { createServer } = require('http')
+const { once } = require('events')
+
+/* global expect, it, jest, AbortController */
+
+// https://github.com/facebook/jest/issues/11607#issuecomment-899068995
+jest.useRealTimers()
+
+const runIf = (condition) => condition ? it : it.skip
+const nodeMajor = Number(process.versions.node.split('.', 1)[0])
+
+runIf(nodeMajor >= 16)('isErrorLike sanity check', () => {
+  const { isErrorLike } = require('../../lib/fetch/util')
+  const { DOMException } = require('../../lib/fetch/constants')
+  const error = new DOMException('')
+
+  // https://github.com/facebook/jest/issues/2549
+  expect(error instanceof Error).toBeFalsy()
+  expect(isErrorLike(error)).toBeTruthy()
+})
+
+runIf(nodeMajor >= 16)('Real use-case', async () => {
+  const { fetch } = require('../..')
+
+  const ac = new AbortController()
+  ac.abort()
+
+  const server = createServer((req, res) => {
+    res.end()
+  }).listen(0)
+
+  await once(server, 'listening')
+
+  const promise = fetch(`https://localhost:${server.address().port}`, {
+    signal: ac.signal
+  })
+
+  await expect(promise).rejects.toThrowError(/^Th(e|is) operation was aborted\.?$/)
+
+  server.close()
+  await once(server, 'close')
+})