test: Clarify that cleanAll removes persistent mocks (#1647)

Closes #1042

README.md

@@ -1007,7 +1007,7 @@ const scope = nock('http://example.com')
 
 Note that while a persisted scope will always intercept the requests, it is considered "done" after the first interception.
 
-If you want to stop persisting a persistent nock you can call `persist(false)`:
+If you want to stop persisting an individual persisted mock you can call `persist(false)`:
 
 ```js
 const scope = nock('http://example.com')
@@ -1020,6 +1020,8 @@ const scope = nock('http://example.com')
 scope.persist(false)
 ```
 
+You can also use `nock.cleanAll()` which removes all mocks, including persistent mocks.
+
 To specify an exact number of times that nock should repeat the response, use [.times()](#repeat-response-n-times).
 
 ### .pendingMocks()

tests/test_nock_lifecycle.js

@@ -61,6 +61,7 @@ test('(re-)activate after restore', async t => {
 test('clean all works', async t => {
   nock('http://example.test')
     .get('/')
+    .twice()
     .reply()
 
   await got('http://example.test/')
@@ -90,6 +91,20 @@ test('cleanAll should remove pending mocks from all scopes', t => {
   t.end()
 })
 
+test('cleanAll removes persistent mocks', async t => {
+  nock('http://example.test')
+    .persist()
+    .get('/')
+    .reply()
+
+  nock.cleanAll()
+
+  await t.rejects(got('http://example.test/'), {
+    name: 'RequestError',
+    code: 'ENOTFOUND',
+  })
+})
+
 test('is done works', async t => {
   nock('http://example.test')
     .get('/')