Pb协议的接口测试

本文节选自霍格沃兹测试学院内部教材

Protocol Buffers 是谷歌开源的序列化与反序列化框架。它与语言无关、平台无关、具有可扩展的机制。用于序列化结构化数据,此工具对标 XML
,支持自动编码,解码。比 XML 性能好,且数据易于解析。更多有关工具的介绍可参考官网。

Protocol Buffers官网:https://developers.google.com/protocol-buffers

Protocol Buffers 为跨平台设计,以 Python 为例,使用者配置 .proto 文件,利用 Protocol Buffers
工具即可生成 Python 代码,此代码就是使用者想要的数据结构。

如果编程语言换成了 Java ,使用者可使用相同的 .proto 文件,利用 Protocol Buffers 工具生成 Java
代码,此代码可被 Java 进行解析。

这么做的好处是可以跨语言交流,试想 Java 与 Python 间的数据通信,只需要利用 .proto
确定格式,就可随心编程,这个过程惬意无比。基于 Protocol Buffers 的测试也无比舒服。

你可选择自己的语言进行测试,比如 Python 。由于数据格式基于 .proto 配置文件,获取到这个文件即可生成数据类,比如下述
.proto 内容通过 protoc --python_out=./ ./addressbook.proto 命令即可生成
addressbook_pb2.py 文件:


syntax = "proto2";  
package tutorial;  
message Person {  optional string name = 1;  optional int32 id = 2;  optional string email = 3;  
  enum PhoneType {    MOBILE = 0;    HOME = 1;    WORK = 2;  }  
  message PhoneNumber {    optional string number = 1;    optional PhoneType type = 2 [default = HOME];  }  
  repeated PhoneNumber phones = 4;}  
message AddressBook {  repeated Person people = 1;}

测试人员的代码只需导入 addressbook_pb2 ,对其初始化后即可使用,比如对 Person 的字段加入一些测试值:


import addressbook_pb2person = addressbook_pb2.Person()person.id = 1234person.name = "John Doe"person.email = "jdoe@example.com"phone = person.phones.add()phone.number = "555-4321"phone.type = addressbook_pb2.Person.HOME

最后,将 person 序列化后即可传输到被测对象。如果你的业务采用文件进行数据传输,可参考官方写文件的例子(采用 python2 ):


#! /usr/bin/python  
import addressbook_pb2import sys  
# This function fills in a Person message based on user input.def PromptForAddress(person):  person.id = int(raw_input("Enter person ID number: "))  person.name = raw_input("Enter name: ")  
  email = raw_input("Enter email address (blank for none): ")  if email != "":    person.email = email  
  while True:    number = raw_input("Enter a phone number (or leave blank to finish): ")    if number == "":      break  
    phone_number = person.phones.add()    phone_number.number = number  
    type = raw_input("Is this a mobile, home, or work phone? ")    if type == "mobile":      phone_number.type = addressbook_pb2.Person.PhoneType.MOBILE    elif type == "home":      phone_number.type = addressbook_pb2.Person.PhoneType.HOME    elif type == "work":      phone_number.type = addressbook_pb2.Person.PhoneType.WORK    else:      print "Unknown phone type; leaving as default value."  
# Main procedure:  Reads the entire address book from a file,#   adds one person based on user input, then writes it back out to the same#   file.if len(sys.argv) != 2:  print "Usage:", sys.argv[0], "ADDRESS_BOOK_FILE"  sys.exit(-1)  
address_book = addressbook_pb2.AddressBook()  
# Read the existing address book.try:  f = open(sys.argv[1], "rb")  address_book.ParseFromString(f.read())  f.close()except IOError:  print sys.argv[1] + ": Could not open file.  Creating a new one."  
# Add an address.PromptForAddress(address_book.people.add())  
# Write the new address book back to disk.f = open(sys.argv[1], "wb")f.write(address_book.SerializeToString())f.close()

也可从被测对象传来的文件中读数据:


#! /usr/bin/python  
import addressbook_pb2import sys  
# Iterates though all people in the AddressBook and prints info about them.def ListPeople(address_book):  for person in address_book.people:    print "Person ID:", person.id    print "  Name:", person.name    if person.HasField('email'):      print "  E-mail address:", person.email  
    for phone_number in person.phones:      if phone_number.type == addressbook_pb2.Person.PhoneType.MOBILE:        print "  Mobile phone #: ",      elif phone_number.type == addressbook_pb2.Person.PhoneType.HOME:        print "  Home phone #: ",      elif phone_number.type == addressbook_pb2.Person.PhoneType.WORK:        print "  Work phone #: ",      print phone_number.number  
# Main procedure:  Reads the entire address book from a file and prints all#   the information inside.if len(sys.argv) != 2:  print "Usage:", sys.argv[0], "ADDRESS_BOOK_FILE"  sys.exit(-1)  
address_book = addressbook_pb2.AddressBook()  
# Read the existing address book.f = open(sys.argv[1], "rb")address_book.ParseFromString(f.read())f.close()  
ListPeople(address_book)

如果数据通过 https 传输,可采用 requests
,其它传输方式同理,请自行查阅数据传输工具。如果测试人员代码与被测对象建立了联系,即可收发测试数据,测试人员对接收到的数据编写测试用例即可。

** _
来霍格沃兹测试开发学社,学习更多软件测试与测试开发的进阶技术,知识点涵盖web自动化测试 app自动化测试、接口自动化测试、测试框架、性能测试、安全测试、持续集成/持续交付/DevOps,测试左移、测试右移、精准测试、测试平台开发、测试管理等内容,课程技术涵盖bash、pytest、junit、selenium、appium、postman、requests、httprunner、jmeter、jenkins、docker、k8s、elk、sonarqube、jacoco、jvm-sandbox等相关技术,全面提升测试开发工程师的技术实力
QQ交流群:484590337
公众号 TestingStudio
点击获取更多信息

推荐这些技术文章:

C#中接口的这种用法

using System;
namespace ConsoleApp3{ class Program { static void Main(string[] args) { IPhone phone = new HaiWei(); Person person = new Person(phone); ...

文章标题:Pb协议的接口测试
文章链接:https://www.dianjilingqu.com/4437.html
本文章来源于网络,版权归原作者所有,如果本站文章侵犯了您的权益,请联系我们删除,联系邮箱:saisai#email.cn,感谢支持理解。
THE END
< <上一篇
下一篇>>