test: feathers-client mocks call cb function

This prevents the milliion “uncaught exception” errors that happen 5 seconds after the tests finish.

test/fixtures/feathers-client.js

@@ -11,40 +11,50 @@ const baseUrl = 'http://localhost:3030'
 
 // These are fixtures used in the service-modulet.test.js under socket events.
 let id = 0
-mockServer.on('things::create', function (data) {
+mockServer.on('things::create', function (data, params, cb) {
   data.id = id
   id++
   mockServer.emit('things created', data)
+  cb(null, data)
 })
-mockServer.on('things::patch', function (id, data) {
+mockServer.on('things::patch', function (id, data, params, cb) {
   Object.assign(data, { id, test: true })
   mockServer.emit('things patched', data)
+  cb(null, data)
 })
-mockServer.on('things::update', function (id, data) {
+mockServer.on('things::update', function (id, data, params, cb) {
   Object.assign(data, { id, test: true })
   mockServer.emit('things updated', data)
+  cb(null, data)
 })
-mockServer.on('things::remove', function (id) {
-  mockServer.emit('things removed', { id, test: true })
+mockServer.on('things::remove', function (id, obj, cb) {
+  const response = { id, test: true }
+  mockServer.emit('things removed', response)
+  cb(null, response)
 })
 
 let idDebounce = 0
 
-mockServer.on('things-debounced::create', function (data) {
+mockServer.on('things-debounced::create', function (data, obj, cb) {
   data.id = idDebounce
   idDebounce++
   mockServer.emit('things-debounced created', data)
+  cb(null, data)
 })
-mockServer.on('things-debounced::patch', function (id, data) {
+mockServer.on('things-debounced::patch', function (id, data, params, cb) {
   Object.assign(data, { id, test: true })
   mockServer.emit('things-debounced patched', data)
+  cb(null, data)
 })
-mockServer.on('things-debounced::update', function (id, data) {
+mockServer.on('things-debounced::update', function (id, data, params, cb) {
   Object.assign(data, { id, test: true })
   mockServer.emit('things-debounced updated', data)
+  cb(null, data)
 })
-mockServer.on('things-debounced::remove', function (id) {
-  mockServer.emit('things-debounced removed', { id, test: true })
+mockServer.on('things-debounced::remove', function (id, params, cb) {
+  const response = { id, test: true }
+  mockServer.emit('things-debounced removed', response)
+  cb(null, response)
 })
 
 // eslint-disable-next-line @typescript-eslint/explicit-function-return-type