Revert "fix: restore express prototypes so injecting doesn't break http requests (#333)"

This reverts commit a9899cb.

Author: mcollina

index.js

@@ -74,21 +74,8 @@ function doInject (dispatchFunc, options, callback) {
 
   // Express.js detection
   if (dispatchFunc.request && dispatchFunc.request.app === dispatchFunc) {
-    const reqProto = Object.getPrototypeOf(dispatchFunc.request)
-    const resProto = Object.getPrototypeOf(dispatchFunc.response)
-    const reqExpressProto = Object.getPrototypeOf(reqProto)
-    const resExpressProto = Object.getPrototypeOf(resProto)
-    Object.setPrototypeOf(reqProto, RequestConstructor.prototype)
-    Object.setPrototypeOf(resProto, Response.prototype)
-
-    // Restore original express prototypes after dispatch is called
-    const distpach = dispatchFunc
-    dispatchFunc = function (req, res) {
-      const result = distpach.call(this, req, res)
-      Object.setPrototypeOf(reqProto, reqExpressProto)
-      Object.setPrototypeOf(resProto, resExpressProto)
-      return result
-    }
+    Object.setPrototypeOf(Object.getPrototypeOf(dispatchFunc.request), RequestConstructor.prototype)
+    Object.setPrototypeOf(Object.getPrototypeOf(dispatchFunc.response), Response.prototype)
   }
 
   if (typeof callback === 'function') {

test/index.test.js

@@ -2129,36 +2129,6 @@ test("passes payload when using express' send", (t, done) => {
   })
 })
 
-test('can both inject and make HTTP requests with express', (t, done) => {
-  t.plan(5)
-
-  const app = express()
-
-  app.get('/hello', (_req, res) => {
-    res.send('some text')
-  })
-
-  const server = app.listen()
-  t.after(() => server.close())
-
-  inject(app, { method: 'GET', url: 'http://example.com:8080/hello' }, (err, res) => {
-    t.assert.ifError(err)
-    t.assert.strictEqual(res.headers['content-length'], '9')
-    t.assert.strictEqual(res.payload, 'some text')
-
-    fetch(`http://localhost:${server.address().port}/hello`)
-      .then((res) => {
-        t.assert.strictEqual(res.headers.get('content-length'), '9')
-        return res.text()
-      })
-      .then(body => {
-        t.assert.strictEqual(body, 'some text')
-        done()
-      })
-      .catch((err) => done(err))
-  })
-})
-
 test('request that is destroyed errors', (t, done) => {
   t.plan(2)
   const dispatch = function (req, res) {