feat: Emits events on disconnect call

.gitignore

@@ -1,5 +1,6 @@
 .nyc_output
 .vscode
+.idea
 coverage
 junit
 lib

src/commands-utils/emitDisconnectEvent.js

@@ -0,0 +1,5 @@
+export default function emitConnectEvent(redisMock) {
+  process.nextTick(() => {
+    redisMock.emit('end')
+  })
+}

src/index.js

@@ -8,6 +8,7 @@ import createCommand, { Command } from './command'
 import * as commands from './commands'
 import * as commandsStream from './commands-stream'
 import emitConnectEvent from './commands-utils/emitConnectEvent'
+import emitDisconnectEvent from './commands-utils/emitDisconnectEvent'
 import contextMap, { createContext } from './context'
 import { createData } from './data'
 import { createExpires } from './expires'
@@ -201,6 +202,8 @@ class RedisMock extends EventEmitter {
 
     removeFrom(this.channels)
     removeFrom(this.patternChannels)
+
+    emitDisconnectEvent(this)
     // no-op
   }
 

test/integration/disconnect.js

@@ -1,8 +1,15 @@
 import Redis from 'ioredis'
 
 describe('disconnect', () => {
-  it('should be available, but do nothing', () => {
+  it('should be available and emit "end" event', async () => {
     const redis = new Redis({})
+    const events = []
+    redis.on('end', () => events.push('end'))
+
     expect(redis.disconnect()).toBe(undefined)
+
+    await new Promise(resolve => setImmediate(resolve));
+
+    expect(events).toEqual(['end'])
   })
 })