chore: add basic discovery module for compliance spec

Author: vasco-santos

package.json

@@ -40,7 +40,9 @@
   "devDependencies": {
     "aegir": "^20.3.1",
     "chai": "^4.2.0",
-    "dirty-chai": "^2.0.1"
+    "dirty-chai": "^2.0.1",
+    "peer-id": "^0.13.3",
+    "peer-info": "^0.17.0"
   },
   "engines": {
     "node": ">=10.0.0",

test/compliance.spec.js

@@ -0,0 +1,13 @@
+/* eslint-env mocha */
+'use strict'
+
+const tests = require('../src')
+const MockDiscovery = require('./mock-discovery')
+
+describe('compliance tests', () => {
+  tests({
+    setup () {
+      return new MockDiscovery()
+    }
+  })
+})

test/mock-discovery.js

@@ -0,0 +1,48 @@
+'use strict'
+
+const { EventEmitter } = require('events')
+
+const PeerId = require('peer-id')
+const PeerInfo = require('peer-info')
+
+/**
+ * Emits 'peer' events on discovery.
+ */
+class MockDiscovery extends EventEmitter {
+  /**
+   * Constructs a new Bootstrap.
+   *
+   * @param {Object} options
+   * @param {number} options.discoveryDelay - the delay to find a peer (in milli-seconds)
+   */
+  constructor (options = {}) {
+    super()
+
+    this.options = options
+    this._isRunning = false
+    this._timer = null
+  }
+
+  start () {
+    this._isRunning = true
+    this._discoverPeer()
+  }
+
+  stop () {
+    clearTimeout(this._timer)
+    this._isRunning = false
+  }
+
+  async _discoverPeer () {
+    if (!this._isRunning) return
+
+    const peerId = await PeerId.create({ bits: 512 })
+    const peerInfo = new PeerInfo(peerId)
+
+    this._timer = setTimeout(() => {
+      this.emit('peer', peerInfo)
+    }, this.options.discoveryDelay || 1000)
+  }
+}
+
+module.exports = MockDiscovery