diff --git a/lib/qingstor/sdk/request/preprocessor.rb b/lib/qingstor/sdk/request/preprocessor.rb
index d7460cf..97f0cbc 100644
--- a/lib/qingstor/sdk/request/preprocessor.rb
+++ b/lib/qingstor/sdk/request/preprocessor.rb
@@ -163,7 +163,7 @@ def self.decorate_input(input)
       def self.compact(object)
         object.each do |k, v|
           object[k] = compact v if v.is_a? Hash
-          object.delete k if v.nil? || v == '' || v == []
+          object.delete k if v.nil? || v == ''
         end
         object
       end
diff --git a/lib/qingstor/sdk/service/bucket.rb b/lib/qingstor/sdk/service/bucket.rb
index b68f73e..70c9cad 100644
--- a/lib/qingstor/sdk/service/bucket.rb
+++ b/lib/qingstor/sdk/service/bucket.rb
@@ -1059,10 +1059,6 @@ def put_acl_request(acl: [])
       def put_bucket_acl_input_validate(input)
         input.deep_stringify_keys!
 
-        unless !input['request_elements']['acl'].nil? && !input['request_elements']['acl'].empty?
-          raise ParameterRequiredError.new('acl', 'PutBucketACLInput')
-        end
-
         input['request_elements']['acl'].each do |x|
           unless x['grantee'].nil?
 
diff --git a/specs/qingstor b/specs/qingstor
index c956b1f..8c87b29 160000
--- a/specs/qingstor
+++ b/specs/qingstor
@@ -1 +1 @@
-Subproject commit c956b1f69e2b14f859474a462bfed14c10954bc2
+Subproject commit 8c87b291dd8376f914cc2b6a7858b17772a62548
diff --git a/test/bucket_acl.rb b/test/bucket_acl.rb
index 95c7989..b6c38fd 100644
--- a/test/bucket_acl.rb
+++ b/test/bucket_acl.rb
@@ -49,3 +49,16 @@
   @get_bucket_acl_output[:acl].each { |acl| ok = true if acl[:grantee][:name] == name }
   raise unless ok
 end
+
+# ----------------------------------------------------------------------------
+
+When(/^put empty bucket ACL$/) do
+  bucket = @qs_service.bucket @test_config[:bucket_name], @test_config[:zone]
+  raise if bucket.nil?
+
+  @clear_bucket_acl_output = bucket.put_acl acl: []
+end
+
+Then(/^put empty bucket ACL status code is (\d+)$/) do |status_code|
+  raise unless @clear_bucket_acl_output[:status_code].to_s == status_code.to_s
+end
diff --git a/test/bucket_lifecycle.rb b/test/bucket_lifecycle.rb
new file mode 100644
index 0000000..0e2c755
--- /dev/null
+++ b/test/bucket_lifecycle.rb
@@ -0,0 +1,61 @@
+#  +-------------------------------------------------------------------------
+#  | Copyright (C) 2016 Yunify, Inc.
+#  +-------------------------------------------------------------------------
+#  | Licensed under the Apache License, Version 2.0 (the "License");
+#  | you may not use this work except in compliance with the License.
+#  | You may obtain a copy of the License in the LICENSE file, or at:
+#  |
+#  | http://www.apache.org/licenses/LICENSE-2.0
+#  |
+#  | Unless required by applicable law or agreed to in writing, software
+#  | distributed under the License is distributed on an "AS IS" BASIS,
+#  | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  | See the License for the specific language governing permissions and
+#  | limitations under the License.
+#  +-------------------------------------------------------------------------
+
+require 'json'
+
+require './qingstor-sdk'
+
+# ----------------------------------------------------------------------------
+
+bucket = nil
+
+When(/^put bucket lifecycle:$/) do |lifecycle_string|
+  bucket = @qs_service.bucket @test_config[:bucket_name], @test_config[:zone]
+  raise if bucket.nil?
+
+  lifecycle = JSON.parse lifecycle_string
+  @put_bucket_lifecycle_output = bucket.put_lifecycle rule: lifecycle['rule']
+end
+
+Then(/^put bucket lifecycle status code is (\d+)$/) do |status_code|
+  raise unless @put_bucket_lifecycle_output[:status_code].to_s == status_code.to_s
+end
+
+# ----------------------------------------------------------------------------
+
+When(/^get bucket lifecycle$/) do
+  @get_bucket_lifecycle_output = bucket.get_lifecycle
+end
+
+Then(/^get bucket lifecycle status code is (\d+)$/) do |status_code|
+  raise unless @get_bucket_lifecycle_output[:status_code].to_s == status_code.to_s
+end
+
+Then(/^get bucket lifecycle should have filter prefix "(.*)"$/) do |name|
+  ok = false
+  @get_bucket_lifecycle_output[:rule].each { |rule| ok = true if rule[:filter][:prefix] == name }
+  raise unless ok
+end
+
+# ----------------------------------------------------------------------------
+
+When(/^delete bucket lifecycle$/) do
+  @delete_bucket_lifecycle_output = bucket.delete_lifecycle
+end
+
+Then(/^delete bucket lifecycle status code is (\d+)$/) do |status_code|
+  raise unless @delete_bucket_lifecycle_output[:status_code].to_s == status_code.to_s
+end
diff --git a/test/bucket_notification.rb b/test/bucket_notification.rb
new file mode 100644
index 0000000..a3ba907
--- /dev/null
+++ b/test/bucket_notification.rb
@@ -0,0 +1,61 @@
+#  +-------------------------------------------------------------------------
+#  | Copyright (C) 2016 Yunify, Inc.
+#  +-------------------------------------------------------------------------
+#  | Licensed under the Apache License, Version 2.0 (the "License");
+#  | you may not use this work except in compliance with the License.
+#  | You may obtain a copy of the License in the LICENSE file, or at:
+#  |
+#  | http://www.apache.org/licenses/LICENSE-2.0
+#  |
+#  | Unless required by applicable law or agreed to in writing, software
+#  | distributed under the License is distributed on an "AS IS" BASIS,
+#  | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  | See the License for the specific language governing permissions and
+#  | limitations under the License.
+#  +-------------------------------------------------------------------------
+
+require 'json'
+
+require './qingstor-sdk'
+
+# ----------------------------------------------------------------------------
+
+bucket = nil
+
+When(/^put bucket notification:$/) do |notification_string|
+  bucket = @qs_service.bucket @test_config[:bucket_name], @test_config[:zone]
+  raise if bucket.nil?
+
+  notify = JSON.parse notification_string
+  @put_bucket_notification_output = bucket.put_notification notifications: notify['notifications']
+end
+
+Then(/^put bucket notification status code is (\d+)$/) do |status_code|
+  raise unless @put_bucket_notification_output[:status_code].to_s == status_code.to_s
+end
+
+# ----------------------------------------------------------------------------
+
+When(/^get bucket notification$/) do
+  @get_bucket_notification_output = bucket.get_notification
+end
+
+Then(/^get bucket notification status code is (\d+)$/) do |status_code|
+  raise unless @get_bucket_notification_output[:status_code].to_s == status_code.to_s
+end
+
+Then(/^get bucket notification should have cloudfunc "(.*)"$/) do |name|
+  ok = false
+  @get_bucket_notification_output[:notifications].each { |notify| ok = true if notify[:cloudfunc] == name }
+  raise unless ok
+end
+
+# ----------------------------------------------------------------------------
+
+When(/^delete bucket notification$/) do
+  @delete_bucket_notification_output = bucket.delete_notification
+end
+
+Then(/^delete bucket notification status code is (\d+)$/) do |status_code|
+  raise unless @delete_bucket_notification_output[:status_code].to_s == status_code.to_s
+end
diff --git a/test/features b/test/features
index e06e815..e96a4a3 160000
--- a/test/features
+++ b/test/features
@@ -1 +1 @@
-Subproject commit e06e8155b0cfd6e7577dffb56339a298db78bc14
+Subproject commit e96a4a3420be7b47dd60172ecdc1fd40dc20d054
diff --git a/test/object.rb b/test/object.rb
index d1e73c7..7e8d757 100644
--- a/test/object.rb
+++ b/test/object.rb
@@ -40,6 +40,20 @@
   raise unless @put_object_output[:status_code].to_s == status_code.to_s
 end
 
+When(/^put object "(.+)" with metadata "(.+)":"(.+)", "(.+)":"(.+)"$/) do |object_key, k1, v1, k2, v2|
+  system 'dd if=/dev/zero of=/tmp/sdk_bin bs=1024 count=1'
+  @put_object_metadata_output = bucket.put_object(
+    "#{object_key}_meta",
+    x_qs_meta_data: {"#{k1}": v1, "#{k2}": v2},
+    body:           File.open('/tmp/sdk_bin'),
+  )
+  system 'rm -f /tmp/sdk_bin'
+end
+
+Then(/^put object with metadata status code is (\d+)$/) do |status_code|
+  raise unless @put_object_metadata_output[:status_code].to_s == status_code.to_s
+end
+
 When(/^copy object with key "(.+)"$/) do |object_key|
   @put_the_copy_object_output = bucket.put_object(
     "#{object_key}_copy",
@@ -76,6 +90,15 @@
   raise unless (@get_object_output[:body].length * 1024).to_s == length.to_s
 end
 
+When(/^get object "(.+)" and check metadata$/) do |object_key|
+  @get_object_meta_output = bucket.get_object "#{object_key}_meta"
+end
+
+Then(/^get object metadata is "(.+)":"(.+)", "(.+)":"(.+)"$/) do |k1, v1, k2, v2|
+  raise unless @get_object_meta_output[:"x_qs_meta_#{k1}"].to_s == v1
+  raise unless @get_object_meta_output[:"x_qs_meta_#{k2}"].to_s == v2
+end
+
 When(/^get object "(.+)" with content type "([^"]*)"$/) do |object_key, content_type|
   @get_object_output = bucket.get_object object_key,
                                          response_content_type: content_type
@@ -138,3 +161,11 @@
 Then(/^delete the move object status code is (\d+)$/) do |status_code|
   raise unless @delete_the_move_object_output[:status_code].to_s == status_code.to_s
 end
+
+When(/^delete object with metadata and "(.*)"$/) do |object_key|
+  @delete_obj_with_meta_output = bucket.delete_object "#{object_key}_meta"
+end
+
+Then(/^delete object with metadata status code is (\d+)$/) do |status_code|
+  raise unless @delete_obj_with_meta_output[:status_code].to_s == status_code.to_s
+end