REW-4685 set global nock assertion timeout (#12)

* Implement global setTimeout

* Update README

* Minor bump

* Audit fix non-breaking

* Audit fix with breaking changes (jest v24)

* List default timeout in readme

* Be -> by

* Add semicolons to readme code

* Explain timeout

* Clarify

* Remove the

* Reduce example

README.md

@@ -128,6 +128,22 @@ it('requestedWithHeadersMatch', () => {
 });
 ```
 
+## Setting a Timeout
+* By default, a timeout of 2 seconds is applied to assertions on nock requests. This means that if nock has not intercepted the request within the set time, the assertion will be false
+* You can set a custom global timeout by calling `setTimeout` on the `chaiNock` object:
+```javascript
+const chaiNock = require('chai-nock');
+
+chai.use(chaiNock);
+// Set a timeout of 10 seconds
+chaiNock.setTimeout(10000);
+```
+* WARNING: If not set already, the test timeout must be greater than that of chaiNock! 
+```javascript 
+jest.setTimeout(12000);
+```
+
+
 ## Usage
 
 ```javascript

index.js

@@ -2,9 +2,12 @@
 
 const equal = require('deep-equal');
 
-module.exports = chai => {
+const config = {
+  timeout: 2000,
+};
+
+const chaiNock = chai => {
   const { Assertion } = chai;
-  const MAX_TIMEOUT = 2000;
 
   function promisfyNockInterceptor(nock) {
     return new Promise((resolve, reject) => {
@@ -13,7 +16,7 @@ module.exports = chai => {
 
       const timeout = setTimeout(() => {
         reject(new Error('The request has not been recieved by Nock'));
-      }, MAX_TIMEOUT);
+      }, config.timeout);
 
       nock.once(
         'request',
@@ -155,3 +158,9 @@ module.exports = chai => {
     );
   });
 };
+
+module.exports = chaiNock;
+
+module.exports.setTimeout = timeout => {
+  config.timeout = timeout;
+};