fix(cluster): subscription regards password setting

Closes #718

Author: luin

lib/cluster/ClusterSubscriber.ts

@@ -52,16 +52,17 @@ export default class ClusterSubscriber {
       return
     }
 
-    const {port, host} = sampleNode.options
-    debug('selected a subscriber %s:%s', host, port)
+    const {options} = sampleNode
+    debug('selected a subscriber %s:%s', options.host, options.port)
 
     // Create a specialized Redis connection for the subscription.
     // Note that auto reconnection is enabled here.
     // `enableReadyCheck` is disabled because subscription is allowed
     // when redis is loading data from the disk.
     this.subscriber = new Redis({
-      port,
-      host,
+      port: options.port,
+      host: options.host,
+      password: options.password,
       enableReadyCheck: false,
       connectionName: SUBSCRIBER_CONNECTION_NAME,
       lazyConnect: true

test/functional/cluster/pub_sub.js

@@ -45,6 +45,31 @@ describe('cluster:pub/sub', function () {
     });
   });
 
+  it('supports password', function (done) {
+    const handler = function (argv, c) {
+      if (argv[0] === 'auth') {
+        c.password = argv[1]
+        return
+      }
+      if (argv[0] === 'subscribe') {
+        expect(c.password).to.eql('abc')
+        expect(c.getConnectionName()).to.eql('ioredisClusterSubscriber')
+      }
+      if (argv[0] === 'cluster' && argv[1] === 'slots') {
+        return [
+          [0, 16383, ['127.0.0.1', 30001]]
+        ];
+      }
+    };
+    new MockServer(30001, handler);
+
+    var sub = new Redis.Cluster([{port: '30001', password: 'abc'}]);
+
+    sub.subscribe('test cluster', function () {
+      done();
+    });
+  });
+
   it('should re-subscribe after reconnection', function (done) {
     new MockServer(30001, function (argv) {
       if (argv[0] === 'cluster' && argv[1] === 'slots') {

test/helpers/mock_server.js

@@ -47,6 +47,7 @@ util.inherits(MockServer, EventEmitter);
 MockServer.prototype.connect = function () {
   var _this = this;
   this.socket = net.createServer(function (c) {
+    c.getConnectionName = () => (c._connectionName)
     var clientIndex = _this.clients.push(c) - 1;
     process.nextTick(function () {
       _this.emit('connect', c);
@@ -59,7 +60,7 @@ MockServer.prototype.connect = function () {
         if (reply.length === 3 && reply[0].toLowerCase() === 'client' && reply[1].toLowerCase() === 'setname') {
           c._connectionName = reply[2]
         }
-        _this.write(c, _this.handler && _this.handler(reply));
+        _this.write(c, _this.handler && _this.handler(reply, c));
       },
       returnError: function () { }
     });