fix: Ensure that falsy response bodies are correctly handled

lib/scope.js

@@ -368,7 +368,7 @@ function define(nockDefs) {
     // Response is not always JSON as it could be a string or binary data or
     // even an array of binary buffers (e.g. when content is encoded).
     let response
-    if (!nockDef.response) {
+    if (typeof nockDef.response === undefined) {
       response = ''
       // TODO: Rename `responseIsBinary` to `responseIsUtf8Representable`.
     } else if (nockDef.responseIsBinary) {

tests/test_scope.js

@@ -8,6 +8,7 @@ const url = require('url')
 const Interceptor = require('../lib/interceptor')
 const nock = require('..')
 const got = require('./got_client')
+const { define } = require("../lib/scope")
 
 it('scope exposes interceptors', () => {
   const scopes = nock.load(
@@ -136,6 +137,21 @@ describe('`Scope#isDone()`', () => {
   })
 })
 
+describe('`define()`', function () {
+  it("accurately sets interceptor response when value is `false`", function () {
+    const [scope] = define([{
+      "scope": "http://www.example.test:80",
+      "method": "GET",
+      "path": "/",
+      "body": "",
+      "status": 200,
+      "response": false,
+    }])
+
+    expect(scope.interceptors[0].body).to.be.false()
+  })
+})
+
 describe('`filteringPath()`', function () {
   it('filter path with function', async function () {
     const scope = nock('http://example.test')