feat: afterRecord support for custom formatting after recording. (#…

…1682)

* ci(travis): run release stage on [Version].x, next, beta branches

* ci(package): update semantic-release to beta.13

* feat: `afterRecord` support for custom formatting after recording.

#1599

README.md

@@ -1437,7 +1437,7 @@ As an optional second parameter you can pass the following options
 
 - `before`: a preprocessing function, gets called before nock.define
 - `after`: a postprocessing function, gets called after nock.define
-- `afterRecord`: a postprocessing function, gets called after recording. Is passed the array of scopes recorded and should return the array scopes to save to the fixture
+- `afterRecord`: a postprocessing function, gets called after recording. Is passed the array of scopes recorded and should return the intact array, a modified version of the array, or if custom formatting is desired, a stringified version of the array to save to the fixture
 - `recorder`: custom options to pass to the recorder
 
 ##### Example

lib/back.js

@@ -171,7 +171,8 @@ const record = {
         outputs = options.afterRecord(outputs)
       }
 
-      outputs = JSON.stringify(outputs, null, 4)
+      outputs =
+        typeof outputs === 'string' ? outputs : JSON.stringify(outputs, null, 4)
       debug('recorder outputs:', outputs)
 
       mkdirp.sync(path.dirname(fixture))

tests/test_back.js

@@ -408,6 +408,48 @@ test('nockBack record tests', nw => {
     })
     nw.end()
   })
+
+  nw.test('it can format after recording', t => {
+    const fixture = 'filteredFixture.json'
+    const fixtureLoc = `${nockBack.fixtures}/${fixture}`
+
+    t.false(exists(fixtureLoc))
+
+    const afterRecord = scopes => 'string-response'
+
+    nockBack(fixture, { afterRecord }, function(done) {
+      const server = http.createServer((request, response) => {
+        t.pass('server received a request')
+
+        response.writeHead(200)
+        response.write('server served a response')
+        response.end()
+      })
+
+      server.listen(() => {
+        const request = http.request(
+          {
+            host: 'localhost',
+            path: '/',
+            port: server.address().port,
+          },
+          response => {
+            done()
+
+            t.is(200, response.statusCode)
+            t.true(exists(fixtureLoc))
+            t.is(fs.readFileSync(fixtureLoc, 'utf8'), 'string-response')
+            fs.unlinkSync(fixtureLoc)
+
+            server.close(t.end)
+          }
+        )
+        request.on('error', t.error)
+        request.end()
+      })
+    })
+    nw.end()
+  })
 })
 
 test('nockBack lockdown tests', nw => {