为authorize_download_url添加测试用例。

lib/qiniu/auth.rb

@@ -57,8 +57,8 @@ module Qiniu
           ### 生成下载授权凭证
           dntoken = "#{access_key}:#{encoded_sign}"
 
-          ### 返回下载授权URL及相关参数
-          return "#{download_url}&token=#{dntoken}", e, dntoken
+          ### 返回下载授权URL
+          return "#{download_url}&token=#{dntoken}"
         end # authorize_download_url
 
       end # class << self

spec/qiniu/auth_spec.rb

@@ -0,0 +1,78 @@
+# -*- encoding: utf-8 -*-
+
+require 'spec_helper'
+require 'qiniu/auth'
+require 'qiniu/storage'
+require 'digest/sha1'
+
+module Qiniu
+  module Auth 
+    describe Auth do
+
+      before :all do
+        @bucket = 'RubySDK-Test-Private'
+        @bucket = make_unique_bucket(@bucket)
+
+        ### 尝试创建Bucket
+        result = Qiniu::Storage.make_a_private_bucket(@bucket)
+        puts result.inspect
+      end
+
+      after :all do
+        ### 不删除Bucket以备下次使用
+      end
+
+      ### 测试私有资源下载
+      context ".download_private_file" do
+        it "should works" do
+          ### 生成Key
+          key = 'a_private_file'
+          key = make_unique_key_in_bucket(key)
+          puts "key=#{key}"
+
+          ### 上传测试文件
+          upopts = {:scope => @bucket, :expires_in => 3600, :endUser => "why404@gmail.com"}
+          uptoken = Qiniu.generate_upload_token(upopts)
+
+          code, data, raw_headers = Qiniu::Storage.upload_with_token_2(
+            uptoken,
+            __FILE__,
+            key
+          )
+          code.should == 200
+          puts data.inspect
+          puts raw_headers.inspect
+
+          ### 获取下载地址
+          code, data = Qiniu::Storage.get(@bucket, key)
+          code.should == 200
+          puts data.inspect
+
+          url = data['url']
+
+          ### 授权下载地址（不带参数）
+          download_url = Qiniu::Auth.authorize_download_url(url)
+          puts "download_url=#{download_url}"
+
+          result = RestClient.get(download_url)
+          result.code.should == 200
+          result.body.should_not be_empty
+
+          ### 授权下载地址（带参数）
+          download_url = Qiniu::Auth.authorize_download_url(url + '?download/a.m3u8')
+          puts "download_url=#{download_url}"
+
+          result = RestClient.get(download_url)
+          result.code.should == 200
+          result.body.should_not be_empty
+
+          ### 删除文件
+          code, data = Qiniu::Storage.delete(@bucket, key)
+          code.should == 200
+          puts data.inspect
+        end
+      end
+
+    end
+  end # module Storage
+end # module Qiniu