fix: add test

Author: KhafraDev

package.json

@@ -48,7 +48,7 @@
     "lint:fix": "standard --fix | snazzy",
     "test": "npm run test:tap && npm run test:node-fetch && npm run test:fetch && npm run test:jest && tsd",
     "test:node-fetch": "node scripts/verifyVersion.js 16 || mocha test/node-fetch",
-    "test:fetch": "node scripts/verifyVersion.js 16 || tap test/fetch/*.js",
+    "test:fetch": "node scripts/verifyVersion.js 16 || npm run build:node && tap test/fetch/*.js",
     "test:jest": "jest",
     "test:tap": "tap test/*.js test/diagnostics-channel/*.js",
     "test:tdd": "tap test/*.js test/diagnostics-channel/*.js -w",

test/fetch/issue-1447.js

@@ -0,0 +1,40 @@
+'use strict'
+
+const { test } = require('tap')
+
+const undici = require('../..')
+const { fetch: theoreticalGlobalFetch } = require('../../undici-fetch')
+
+test('Mocking works with both fetches', async (t) => {
+  const mockAgent = new undici.MockAgent()
+  const body = JSON.stringify({ foo: 'bar' })
+
+  mockAgent.disableNetConnect()
+  undici.setGlobalDispatcher(mockAgent)
+  const pool = mockAgent.get('https://example.com')
+
+  pool.intercept({
+    path: '/path',
+    method: 'POST',
+    body (bodyString) {
+      t.equal(bodyString, body)
+      return true
+    }
+  }).reply(200, { ok: 1 }).times(2)
+
+  const url = new URL('https://example.com/path').href
+
+  // undici fetch from node_modules
+  await undici.fetch(url, {
+    method: 'POST',
+    body
+  })
+
+  // the global fetch bundled with esbuild
+  await theoreticalGlobalFetch(url, {
+    method: 'POST',
+    body
+  })
+
+  t.end()
+})