fix: add async support to setup (#11)

README.md

@@ -38,10 +38,10 @@ Include this badge in your readme if you make a new module that uses interface-p
 
 ### Node.js
 
-Install `interface-peer-discovery` as one of the dependencies of your project and as a test file. Then, using `mocha` (for JavaScript) or a test runner with compatible API, do:
+Install `interface-discovery` as one of the dependencies of your project and as a test file. Then, using `mocha` (for JavaScript) or a test runner with compatible API, do:
 
 ```js
-const test = require('interface-peer-discovery')
+const test = require('interface-discovery')
 
 const common = {
   setup () {

src/index.js

@@ -5,12 +5,14 @@ module.exports = (common) => {
   describe('interface-peer-discovery', () => {
     let discovery
 
-    before(() => {
+    before(async () => {
-      discovery = common.setup()
+      discovery = await common.setup()
     })
 
     after(() => common.teardown && common.teardown())
 
+    afterEach('ensure discovery was stopped', () => discovery.stop())
+
     it('can start the service', async () => {
       await discovery.start()
     })

test/compliance.spec.js

@@ -6,8 +6,12 @@ const MockDiscovery = require('./mock-discovery')
 
 describe('compliance tests', () => {
   tests({
-    setup () {
+    async setup () {
+      await new Promise(resolve => setTimeout(resolve, 10))
       return new MockDiscovery()
+    },
+    async teardown () {
+      await new Promise(resolve => setTimeout(resolve, 10))
     }
   })
 })