use mock puppet in smoke testing

src/puppet-mock/puppet-mock.spec.ts

+#!/usr/bin/env ts-node
+
+// tslint:disable:no-shadowed-variable
+import test  from 'blue-tape'
+
+import { MemoryCard } from 'memory-card'
+
+import { PuppetMock } from './puppet-mock'
+
+class PuppetMockTest extends PuppetMock {
+}
+
+test('PuppetMock() restart without problem', async t => {
+  const puppet = new PuppetMockTest({
+    memory   : new MemoryCard(),
+  })
+  try {
+    for (let i = 0; i < 3; i++) {
+      await puppet.start()
+      await puppet.stop()
+      t.pass('start/stop-ed at #' + i)
+    }
+    t.pass('PuppetMock() start/restart successed.')
+  } catch (e) {
+    t.fail(e)
+  }
+})

src/puppet-mock/puppet-mock.ts

@@ -67,6 +67,8 @@ export interface MockRoomRawPayload {
 
 export class PuppetMock extends Puppet {
 
+  private loopTimer?: NodeJS.Timer
+
   constructor(
     public options: PuppetOptions,
   ) {
@@ -94,7 +96,7 @@ export class PuppetMock extends Puppet {
       toId      : 'xxx',
     })
 
-    setInterval(() => {
+    this.loopTimer = setInterval(() => {
       log.verbose('PuppetMock', `start() setInterval() pretending received a new message: ${MOCK_MSG_ID}`)
       this.emit('message', MOCK_MSG_ID)
     }, 3000)
@@ -111,6 +113,11 @@ export class PuppetMock extends Puppet {
     }
 
     this.state.off('pending')
+
+    if (this.loopTimer) {
+      clearInterval(this.loopTimer)
+    }
+
     // await some tasks...
     this.state.off(true)
   }

tests/fixtures/smoke-testing.ts

@@ -3,7 +3,9 @@
 import { Wechaty } from 'wechaty'
 
 async function main() {
-  const bot = Wechaty.instance()
+  const bot = Wechaty.instance({
+    puppet: 'mock',
+  })
   try {
     await bot.start()
     console.log(`Wechaty v${bot.version()} smoking test passed.`)