Fixed the errors of the unit test.

framework/test/Volo.Abp.Sms.Aliyun.Tests/Volo/Abp/Sms/Aliyun/AliyunSmsSender_Tests.cs

@@ -20,6 +20,12 @@ namespace Volo.Abp.Sms.Aliyun
         {
             var config = _configuration.GetSection("AbpAliyunSms");
 
+            // Please fill in the real parameters in the appsettings.json file.
+            if (config["AccessKeyId"] == "<Enter your AccessKeyId from Aliyun>")
+            {
+                return;
+            }
+            
             var msg = new SmsMessage(config["TargetPhoneNumber"],
                 config["TemplateParam"]);
             msg.Properties.Add("SignName", config["SignName"]);