接口自动化，断言方法，深度定位错误

接口自动化，断言方法，深度定位错误。

代码如下：

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2017-07-27 13:49

# 断言方法，比较两个list或dict的不同之处

a= {'b':[1,2,5,8],'c':3,'d':2,'f':[1,2,3],'g':[1,2,3,[2,'2',2]],'h':'5'}
b= {'b':[1,2,'3'],'c':2,'e':'4','f':[1,2,3,5],'g':[1,2,3,[1,2]],'h':[1,2]}

def compare_json_data(A, B, L = [], xpath = '.'):
    if isinstance(A, list) and isinstance(B, list):
        for i in range(len(A)):
            try:
                compare_json_data(A[i], B[i], L, xpath + '[%s]' % str(i))
            except:
                L.append('▇▇▇ A中的key %s[%s]未在B中找到
' % (xpath, i))
    if isinstance(A, dict) and isinstance(B, dict):
        for i in A:
            try:
                B[i]
            except:
                L.append('▇▇▇ A中的key %s/%s 未在B中找到
' % (xpath, i))
                continue
            if not (isinstance(A.get(i), (list, dict)) or isinstance(B.get(i), (list, dict))):
                if type(A.get(i)) != type(B.get(i)):
                    L.append('▇▇▇ 类型不同参数在[A]中的绝对路径:  %s/%s  ►►► A is %s, B is %s 
' % (xpath, i, type(A.get(i)), type(B.get(i))))
                elif A.get(i) != B.get(i):
                    L.append('▇▇▇ 仅内容不同参数在[A]中的绝对路径:  %s/%s  ►►► A is %s, B is %s 
' % (xpath, i, A.get(i), B.get(i)))
                continue
            compare_json_data(A.get(i), B.get(i), L, xpath + '/' + str(i))
        return
    if type(A) != type(B):
        L.append('▇▇▇ 类型不同参数在[A]中的绝对路径:  %s  ►►► A is %s, B is %s 
' % (xpath, type(A), type(B)))
    elif A != B and type(A) is not list:
        L.append('▇▇▇ 仅内容不同参数在[A]中的绝对路径:  %s  ►►► A is %s, B is %s 
' % (xpath, A, B))
    return L

def Assert(A,B):
    C = []
    compare_json_data(A, B, C)
    assert len(C) == 0, "
"+"".join(C)
Assert(a, b)

效果图如下：