diff --git a/.travis.yml b/.travis.yml
index 730e58e..ed3f802 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,12 +7,14 @@ node_js:
   - "11"
 
 install:
+  - npm install
   - npm install -g codecov
   - npm install -g istanbul
 
 before_script:
-- export is_travis=true
+  - export is_travis=true
 script:
+  - npm test
   - istanbul cover ./node_modules/mocha/bin/_mocha --reporter test -- -R spec
   - codecov
 
diff --git a/qiniu/conf.js b/qiniu/conf.js
index 142dd24..6c9cb72 100644
--- a/qiniu/conf.js
+++ b/qiniu/conf.js
@@ -6,7 +6,7 @@ exports.SECRET_KEY = '<DONT SEND YOUR SECRET KEY TO ANYONE>';
 
 var defaultUserAgent = function () {
     return 'QiniuNodejs/' + pkg.version + ' (' + os.type() + '; ' + os.platform() +
-    '; ' + os.arch() + '; )';
+        '; ' + os.arch() + '; )';
 };
 
 exports.USER_AGENT = defaultUserAgent();
@@ -16,7 +16,7 @@ exports.BLOCK_SIZE = 4 * 1024 * 1024; // 4MB, never change
 exports.FormMimeUrl = 'application/x-www-form-urlencoded';
 exports.FormMimeJson = 'application/json';
 exports.FormMimeRaw = 'application/octet-stream';
-exports.RS_HOST = 'http://rs.qiniu.com';
+exports.RS_HOST = 'rs.qiniu.com';
 exports.RPC_TIMEOUT = 120000; // 120s
 exports.UC_HOST = 'uc.qbox.me';
 
@@ -24,7 +24,7 @@ exports.UC_HOST = 'uc.qbox.me';
 exports.RPC_HTTP_AGENT = null;
 exports.RPC_HTTPS_AGENT = null;
 
-exports.Config = function Config (options) {
+exports.Config = function Config(options) {
     options = options || {};
     // use http or https protocol
     this.useHttpsDomain = !!(options.useHttpsDomain || false);
@@ -51,31 +51,31 @@ exports.Zone = function (srcUpHosts, cdnUpHosts, ioHost, rsHost, rsfHost,
         if (zoneSepIndex != -1) {
             var zoneTag = ioTag.substring(zoneSepIndex + 1);
             switch (zoneTag) {
-            case 'z1':
-                this.rsHost = 'rs-z1.qiniu.com';
-                this.rsfHost = 'rsf-z1.qiniu.com';
-                this.apiHost = 'api-z1.qiniu.com';
-                break;
-            case 'z2':
-                this.rsHost = 'rs-z2.qiniu.com';
-                this.rsfHost = 'rsf-z2.qiniu.com';
-                this.apiHost = 'api-z2.qiniu.com';
-                break;
-            case 'na0':
-                this.rsHost = 'rs-na0.qiniu.com';
-                this.rsfHost = 'rsf-na0.qiniu.com';
-                this.apiHost = 'api-na0.qiniu.com';
-                break;
-            case 'as0':
-                this.rsHost = 'rs-as0.qiniu.com';
-                this.rsfHost = 'rsf-as0.qiniu.com';
-                this.apiHost = 'api-as0.qiniu.com';
-                break;
-            default:
-                this.rsHost = 'rs.qiniu.com';
-                this.rsfHost = 'rsf.qiniu.com';
-                this.apiHost = 'api.qiniu.com';
-                break;
+                case 'z1':
+                    this.rsHost = 'rs-z1.qiniu.com';
+                    this.rsfHost = 'rsf-z1.qiniu.com';
+                    this.apiHost = 'api-z1.qiniu.com';
+                    break;
+                case 'z2':
+                    this.rsHost = 'rs-z2.qiniu.com';
+                    this.rsfHost = 'rsf-z2.qiniu.com';
+                    this.apiHost = 'api-z2.qiniu.com';
+                    break;
+                case 'na0':
+                    this.rsHost = 'rs-na0.qiniu.com';
+                    this.rsfHost = 'rsf-na0.qiniu.com';
+                    this.apiHost = 'api-na0.qiniu.com';
+                    break;
+                case 'as0':
+                    this.rsHost = 'rs-as0.qiniu.com';
+                    this.rsfHost = 'rsf-as0.qiniu.com';
+                    this.apiHost = 'api-as0.qiniu.com';
+                    break;
+                default:
+                    this.rsHost = 'rs.qiniu.com';
+                    this.rsfHost = 'rsf.qiniu.com';
+                    this.apiHost = 'api.qiniu.com';
+                    break;
             }
         }
     }
diff --git a/qiniu/storage/rs.js b/qiniu/storage/rs.js
index e3c6470..dc138ef 100644
--- a/qiniu/storage/rs.js
+++ b/qiniu/storage/rs.js
@@ -8,7 +8,7 @@ const util = require('../util');
 exports.BucketManager = BucketManager;
 exports.PutPolicy = PutPolicy;
 
-function BucketManager (mac, config) {
+function BucketManager(mac, config) {
     this.mac = mac || new digest.Mac();
     this.config = config || new conf.Config();
 }
@@ -28,7 +28,7 @@ BucketManager.prototype.stat = function (bucket, key, callbackFunc) {
     });
 };
 
-function statReq (mac, config, bucket, key, callbackFunc) {
+function statReq(mac, config, bucket, key, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var statOp = exports.statOp(bucket, key);
     var requestURI = scheme + config.zone.rsHost + statOp;
@@ -53,7 +53,7 @@ BucketManager.prototype.changeMime = function (bucket, key, newMime,
     });
 };
 
-function changeMimeReq (mac, config, bucket, key, newMime, callbackFunc) {
+function changeMimeReq(mac, config, bucket, key, newMime, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var changeMimeOp = exports.changeMimeOp(bucket, key, newMime);
     var requestURI = scheme + config.zone.rsHost + changeMimeOp;
@@ -78,7 +78,7 @@ BucketManager.prototype.changeHeaders = function (bucket, key, headers,
     });
 };
 
-function changeHeadersReq (mac, config, bucket, key, headers, callbackFunc) {
+function changeHeadersReq(mac, config, bucket, key, headers, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var changeHeadersOp = exports.changeHeadersOp(bucket, key, headers);
     var requestURI = scheme + config.zone.rsHost + changeHeadersOp;
@@ -107,7 +107,7 @@ BucketManager.prototype.move = function (srcBucket, srcKey, destBucket, destKey,
     });
 };
 
-function moveReq (mac, config, srcBucket, srcKey, destBucket, destKey,
+function moveReq(mac, config, srcBucket, srcKey, destBucket, destKey,
     options, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var moveOp = exports.moveOp(srcBucket, srcKey, destBucket, destKey, options);
@@ -137,7 +137,7 @@ BucketManager.prototype.copy = function (srcBucket, srcKey, destBucket, destKey,
     });
 };
 
-function copyReq (mac, config, srcBucket, srcKey, destBucket, destKey,
+function copyReq(mac, config, srcBucket, srcKey, destBucket, destKey,
     options, callbackFunc) {
     options = options || {};
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
@@ -162,7 +162,7 @@ BucketManager.prototype.delete = function (bucket, key, callbackFunc) {
     });
 };
 
-function deleteReq (mac, config, bucket, key, callbackFunc) {
+function deleteReq(mac, config, bucket, key, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var deleteOp = exports.deleteOp(bucket, key);
     var requestURI = scheme + config.zone.rsHost + deleteOp;
@@ -187,7 +187,7 @@ BucketManager.prototype.deleteAfterDays = function (bucket, key, days,
     });
 };
 
-function deleteAfterDaysReq (mac, config, bucket, key, days, callbackFunc) {
+function deleteAfterDaysReq(mac, config, bucket, key, days, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var deleteAfterDaysOp = exports.deleteAfterDaysOp(bucket, key, days);
     var requestURI = scheme + config.zone.rsHost + deleteAfterDaysOp;
@@ -211,7 +211,7 @@ BucketManager.prototype.fetch = function (resUrl, bucket, key, callbackFunc) {
     });
 };
 
-function fetchReq (mac, config, resUrl, bucket, key, callbackFunc) {
+function fetchReq(mac, config, resUrl, bucket, key, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var encodedEntryURI = util.encodedEntry(bucket, key);
     var encodedResURL = util.urlsafeBase64Encode(resUrl);
@@ -236,7 +236,7 @@ BucketManager.prototype.prefetch = function (bucket, key, callbackFunc) {
     });
 };
 
-function prefetchReq (mac, config, bucket, key, callbackFunc) {
+function prefetchReq(mac, config, bucket, key, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var encodedEntryURI = util.encodedEntry(bucket, key);
     var requestURI = scheme + config.zone.ioHost + '/prefetch/' + encodedEntryURI;
@@ -261,7 +261,7 @@ BucketManager.prototype.changeType = function (bucket, key, newType,
     });
 };
 
-function changeTypeReq (mac, config, bucket, key, newType, callbackFunc) {
+function changeTypeReq(mac, config, bucket, key, newType, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var changeTypeOp = exports.changeTypeOp(bucket, key, newType);
     var requestURI = scheme + config.zone.rsHost + changeTypeOp;
@@ -318,7 +318,7 @@ BucketManager.prototype.listPrefix = function (bucket, options, callbackFunc) {
     });
 };
 
-function listPrefixReq (mac, config, bucket, options, callbackFunc) {
+function listPrefixReq(mac, config, bucket, options, callbackFunc) {
     options = options || {};
     // 必须参数
     var reqParams = {
@@ -376,7 +376,7 @@ BucketManager.prototype.listPrefixV2 = function (bucket, options, callbackFunc)
     });
 };
 
-function listPrefixReqV2 (mac, config, bucket, options, callbackFunc) {
+function listPrefixReqV2(mac, config, bucket, options, callbackFunc) {
     options = options || {};
     // 必须参数
     var reqParams = {
@@ -417,7 +417,8 @@ function listPrefixReqV2 (mac, config, bucket, options, callbackFunc) {
 
 // 批量文件管理请求，支持stat，chgm，chtype，delete，copy，move
 BucketManager.prototype.batch = function (operations, callbackFunc) {
-    var requestURI = conf.RS_HOST + '/batch';
+    var scheme = this.config.useHttpsDomain ? 'https://' : 'http://';
+    var requestURI = scheme + conf.RS_HOST + '/batch';
     var reqParams = {
         op: operations
     };
@@ -540,7 +541,7 @@ BucketManager.prototype.updateObjectStatus = function (bucket, key, status,
     });
 };
 
-function updateStatusReq (mac, config, bucket, key, status, callbackFunc) {
+function updateStatusReq(mac, config, bucket, key, status, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var changeStatusOp = exports.changeStatusOp(bucket, key, status);
     var requestURI = scheme + config.zone.rsHost + changeStatusOp;
@@ -582,7 +583,7 @@ BucketManager.prototype.putBucketLifecycleRule = function (bucket, options,
     PutBucketLifecycleRule(this.mac, this.config, bucket, options, callbackFunc);
 };
 
-function PutBucketLifecycleRule (mac, config, bucket, options, callbackFunc) {
+function PutBucketLifecycleRule(mac, config, bucket, options, callbackFunc) {
     options = options || {};
     var reqParams = {
         bucket: bucket,
@@ -691,7 +692,7 @@ BucketManager.prototype.putBucketEvent = function (bucket, options, callbackFunc
     PutBucketEvent(this.mac, this.config, options, bucket, callbackFunc);
 };
 
-function PutBucketEvent (mac, config, options, bucket, callbackFunc) {
+function PutBucketEvent(mac, config, options, bucket, callbackFunc) {
     options = options || {};
     var reqParams = { // 必填参数
         bucket: bucket,
@@ -736,7 +737,7 @@ BucketManager.prototype.updateBucketEvent = function (bucket, options, callbackF
     UpdateBucketEvent(this.mac, this.config, options, bucket, callbackFunc);
 };
 
-function UpdateBucketEvent (mac, config, options, bucket, callbackFunc) {
+function UpdateBucketEvent(mac, config, options, bucket, callbackFunc) {
     options = options || {};
     var reqParams = {
         bucket: bucket,
@@ -806,7 +807,7 @@ BucketManager.prototype.putReferAntiLeech = function (bucket, options, callbackF
     PutReferAntiLeech(this.mac, this.config, bucket, options, callbackFunc);
 };
 
-function PutReferAntiLeech (mac, config, bucket, options, callbackFunc) {
+function PutReferAntiLeech(mac, config, bucket, options, callbackFunc) {
     options = options || {};
     var reqParams = {
         bucket: bucket
@@ -848,7 +849,7 @@ BucketManager.prototype.putCorsRules = function (bucket, body, callbackFunc) {
     PutCorsRules(this.mac, this.config, bucket, body, callbackFunc);
 };
 
-function PutCorsRules (mac, config, bucket, body, callbackFunc) {
+function PutCorsRules(mac, config, bucket, body, callbackFunc) {
     var reqBody = JSON.stringify(body);
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var requestURI = scheme + conf.UC_HOST + '/corsRules/set/' + bucket;
@@ -861,7 +862,7 @@ BucketManager.prototype.getCorsRules = function (bucket, callbackFunc) {
     GetCorsRules(this.mac, this.config, bucket, callbackFunc);
 };
 
-function GetCorsRules (mac, config, bucket, callbackFunc) {
+function GetCorsRules(mac, config, bucket, callbackFunc) {
     var scheme = config.useHttpsDomain ? 'https://' : 'http://';
     var requestURI = scheme + conf.UC_HOST + '/corsRules/get/' + bucket;
     var digest = util.generateAccessToken(mac, requestURI, null);
@@ -976,14 +977,14 @@ BucketManager.prototype.listBucketDomains = function (bucket, callbackFunc) {
 //解冻归档存储文件
 BucketManager.prototype.restoreAr = function (entry, freezeAfterDays, callbackFunc) {
     var scheme = this.config.useHttpsDomain ? 'https://' : 'http://';
-    var requestURI = scheme + conf.RS_QBOX + "/restoreAr/"+util.urlsafeBase64Encode(entry)+"/freezeAfterDays/"+freezeAfterDays;
+    var requestURI = scheme + conf.RS_HOST + "/restoreAr/" + util.urlsafeBase64Encode(entry) + "/freezeAfterDays/" + freezeAfterDays;
     var digest = util.generateAccessToken(this.mac, requestURI, null);
     rpc.postWithoutForm(requestURI, digest, callbackFunc);
 };
 
 // 上传策略
 // @link https://developer.qiniu.com/kodo/manual/1206/put-policy
-function PutPolicy (options) {
+function PutPolicy(options) {
     if (typeof options !== 'object') {
         throw new Error('invalid putpolicy options');
     }