Requests the library deployment and common function

---

1.Requests常用函数讲解

import json

import jsonpath
import requests

url = "http://www.baidu.com"
res = requests.get(url)
# Print what the response came back with Binary text content
# print(res.content)
# 文本内容
# print(res.text)
# 接口地址
# print(res.url)
# cookie
# print(res.cookies)
# Print the header content
# print(res.headers)
# 打印json
# print(res.json())

# 请求不带参数 请求带参数
# url = 'http://39.98.138.157:5000/api/gettomorrow'
# data = {"city":"1"}
# res = requests.get(url = url,params = data)
# print(res.text,type(res.text))
# print(res.json(),type(res.json()))
# Get the content that comes back in the response res.json good point 数据类型 字典类型
# res.textThe content of the response comes back 字符串的类型

# post请求
# url = "http://39.98.138.157:5000/api/login"
# data={"password": "123456","username": "admin"}
# print(type(data))
# # def post(url, data=None, json=None, **kwargs): 用json
# res = requests.post(url,json=data)
# print(res.json())


# 什么时候用data,什么时候用json呢? 看content-type数据类型,如果是json,要用json传
# 非要用dataCan it be passed,可以哦


# 接口文档 It is required to passcontent-type:application/json
# data A string is required to be passed
# jsonA dictionary type is required to be passed
# url = "http://39.98.138.157:5000/api/login"
# data='{"password": "123456","username": "admin"}'
# print(type(data))
# # def post(url, data=None, json=None, **kwargs): 用json
# # 加个请求头
# header = {"content-type":"application/json"}
# res = requests.post(url,data=data,headers = header)
# print(res.headers)
# print(res.json())

# When the interface documentation does not match the actual interface parameter type,就要改 改json
# The data type is defined when developing the write interface

# dataA string is required to be passed
# Manually convert the dictionary to a string
# url = "http://39.98.138.157:5000/api/login"
# data={"password": "123456","username": "admin"}
# # dictionary to string String to dictionary eval
# data1 = json.dumps(data)
# print(type(data1))
# header = {"content-type":"application/json"}
# res = requests.post(url,data=data1,headers = header)
# # print(res.headers)
# print(res.json())


# json提交 字典类型的数据
# String to dictionary
# url = "http://39.98.138.157:5000/api/login"
# data='{"password": "123456","username": "admin"}'
# # dictionary to string String to dictionary eval
# data1 = json.loads(data)
# print(type(data1))
# header = {"content-type":"application/json"}
# res = requests.post(url,json=data1,headers = header)
# # print(res.headers)
# print(res.json())

# 总结:传json数据
# 1.可以直接用json传参
# 2.如果你要用data传参 The data is changed to string type
# json传字典 data传字符串
# String to dictionary json.loads(data) eval
# dictionary to string json.dumps(data)

# json.load 和 json.dump
# json.load:用于读取文件中json数据
# json.dump:用于写入json文件中
# url = "http://39.98.138.157:5000/api/login"
# data={"password": "123456","username": "admin"}
# f = open('tt.txt','a')
# json.dump(data,f)

# The read file is a string
# f1 = open('tt.txt','r')
# print(f1.read(),type(f1.read()))

f1 = open('tt.txt','r')
ff = json.load(f1)
print(ff,type(ff))

# Login interface test
url = "http://39.98.138.157:5000/api/login"
data='{"password": "123456","username": "admin"}'
# dictionary to string String to dictionary eval
data1 = json.loads(data)
print(type(data1))
header = {
    "content-type":"application/json"}
res = requests.post(url,json=data1,headers = header)
# print(res.headers)
print(res.json())

# If this use case returns yessuccess 用例成功 用例失败
# 预期结果
exmsg = 'success'
# 实际结果 msg的字段的值 字典取值
# 其他的方式?Get actual results 正则可以 json取值 json格式的数据
# 字典 数据类型 数据格式 通过json去取值
sjmsg = jsonpath.jsonpath(res.json(),'$.msg')[0]
# 数据,表达式
# sjmsg = res.json()['msg']
print(sjmsg)

# 判断
if exmsg == sjmsg:
    print('用例成功')
else:
    print('用例失败')
# 相等 啥事没有 不相等 报错 Tips are not friendly 有个友好的提示 用什么方式 There will be a friendly reminder
# try:
# assert exmsg == sjmsg
# print('用例成功')
# except Exception as e:
# print('用例失败')

2.JsonPath讲解

import jsonpath as jsonpath

data={
    
    "store": {
    
        "book": [
            {
    
                "category": "新闻学",
                "author": "张三",
                "title": "图书标题1",
                "price": 8.95
            },
            {
    
                "category": "金融学",
                "author": "李四",
                "title": "图书标题2",
                "price": 12.00
            },
            {
    
                "category": "计算机",
                "author": "王五",
                "title": "图书标题3",
                "isbn": "0-553-21311-3",
                "price": 9.99
            },
            {
    
                "category": "医学",
                "author": "赵六",
                "title": "图书标题4",
                "price": 22.99
            }
        ],
        "phone": {
    
            "color": "red",
            "price": 1999.00,
            "author": "孙七"
        },
        "author": "周八",
        "price": 1.00
    },
    "author": "吴九"
}

# # # 找出book的所有author ['张三', '李四', '王五', '赵六']
# jsonpath(数据,表达式)
print(jsonpath.jsonpath(data,'$.store.book[*].author'))
# # # under all nodesauthor As long as the author finds it.. ['吴九', '周八', '张三', '李四', '王五', '赵六', '孙七']
print(jsonpath.jsonpath(data,'$..author'))
# # store下的所有元素
print(jsonpath.jsonpath(data,'$.store'))
# # book的第3个元素
print(jsonpath.jsonpath(data,'$.store.book[2]'))
# # book的前面2个元素 切片 [开始值:结束值 不包含结束值]
print(jsonpath.jsonpath(data,'$.store.book[:2]'))
# # book的最后2个元素
print(jsonpath.jsonpath(data,'$.store.book[-2:]'))
# # book的第1个元素到第4个元素 不包含4的元素
print(jsonpath.jsonpath(data,'$.store.book[:4]'))
# # book中所有带有 isbn 的元素 [?(@.)]is the way to write a filter expression [?(@.isbn)]Filter other to find only the content inside the expression
print(jsonpath.jsonpath(data,'$.store.book[?(@.isbn)]'))

# 语法
# $ The entire root node object
# @ 当前节点
# .或[] 子节点
# * 任意子节点
# .. 任意后代节点

3.接口关联 实现登录 下单流程

import jsonpath
import pytest
import requests


class TestCase:
    token = None
    # 响应 tokennumber will change 响应回来的tokennumber to be extracted 保存在变量中.放在一个地方,都能拿到token
    def test_login(self):
        url = 'http://39.98.138.157:5000/api/login'
        # 张三 token 2h
        data = {
    "password": "123456","username": "admin"}
        res = requests.post(url,json=data)
        print(res.json())
        # 提取token 保存在变量中 类变量 其他方式 2.session中去取 3.返回值
        sjmsg = jsonpath.jsonpath(res.json(),'$.msg')[0]
        TestCase.token = jsonpath.jsonpath(res.json(),'$.token')[0]
        assert 'success' == sjmsg


    # Note that you need to use this when adding to the shopping cart to place an orderuserid和openid 这个怎么弄
    def test_getUserinfo(self):
        url = 'http://39.98.138.157:5000/api/getuserinfo'
        # 这个token不能写死 when getting logged intoken号
        header = {
    "token":TestCase.token}
        res = requests.get(url,headers = header)
        print(res.json())
        sjname = jsonpath.jsonpath(res.json(),'$..nikename')[0]
        assert '风清扬' == sjname

    # 选择商品
    def test_shopping(self):
        url = 'http://39.98.138.157:5000/api/getproductinfo?productid=8888'
        res = requests.get(url)
        print(res.json())
        sjproductid = jsonpath.jsonpath(res.json(),'$..productid')[0]
        assert 8888 == sjproductid

    def test_cart(self):
        pass

    def test_order(self):
        pass

if __name__ == '__main__':
    pytest.main(['-sv','test_demo3.py'])