日志加密怎么测试？

最近收到一个日志加密的测试任务。
需求大致如下：根据调用的关键字出参及入参对应values进行加密
关键字：

'mobileNo|custName|money|mobile|userNo|fullName|idNo|panNo|aadhaarNo|registerMobileNo|applyMobile|phone|name|aadhaarCardNo|aadhaarCardName|custRegisterPhoneNum|phoneNumber|idNumber|mobilePhone|middleName|firstName|number|surname|pan|oriPan|userId|password|cardNo|lastName|panCode|additionalMiddleName|PANNumber|panCard|PANId|pan_code'

样例：
比如有个请求日志如下：

2020-05-16 16:22:31.195 DEBUG [apv-workflow-pool-pool-20] [e9f469a5cf79451a97589795563f0cde#14|10.11.2.126||10.11.0.8] [in.qihoo.finance.apv.modules.credit.component.creditnodeflow.impl.AbstractCreditNodeFlowProvider:239] - start checkWhetherDecisionCredit,传入参数str={'isDecisionNode':'Y','creditAdapter':'Pboc'},request={~~idNo=大大大撒21~~ , rejectReasonCode3=, rejectReasonCode2=, rejectReasonCode1=,, id=1335, state=CRING, custNameMd5x=, creditOrg=, phaseNo=AP_CREDIT, idType=P, updatedBy=SYSTEM, applyChannel=APKKR_CH_00001, , priority=, decisionCode=APPROVED, rejectMsg3=, rejectMsg2=, , rejectMsg1=, idNoMd5x=, origState=, flowNo=CREDIT_APPROVE, ,  rejectMsg=, contractNo=, dateFinished=, ~~userNo=UR121212121212121,~~  remark=, dateApplSubmit=2020-05-16T16:21:01.000+0800, dateCreated=2020-05-16T16:21:01.000+0800, eventTypeList=, taskNo=5980494681853657088, apprAutoAmt=, applNo=2020051600000201, dateAppl=2020-05-16T16:21:01.000+0800, ~~mobileNo=6212121212, custName=H162616261621~~ },creditType=EquifaxLesseePboc

为了显示其中关键字加密前类似：idNo=大大大撒21 mobileNo=6212121212userNo=UR121212121212121,~~
加密后应该是类似：idNo=大*****1 mobileNo=6******2userNo=U******1,~
日志比较少根据肉眼很好判断关键字是否被加密了，但是日志往往比较多，关键字也不少，肉眼测试难免漏掉。
思路：将日志从服务拿出来，然后根据关键字比对找到包含关键字=的字符串拿出来，包含则加密，否则未加密。并分别写入文件作为记录。
代码如下：

import numpy as np
import main
#按行件文件保存到list
def read_txt(filename):
    file = open(filename, "r",encoding='UTF-8')
    list = file.readlines()  # 每一行数据写入到list中
    print(list)
    lists = []
    # 将txt文件转换成数组形式保存
    for fields in list:
        fields = fields.strip();  # fields.strip()用来删除字符串两端的空白字符。
        # fields = fields.strip("\n");  # fields.strip("[]")用来删除字符串两端方括号。
        # fields = fields.split(",");  # fields.split(",")的作用是以逗号为分隔符，将字符串进行分隔。
        lists.append(fields)
    print(lists)
    return lists
#按关键字模糊匹配,匹中的写入文件
def write_txt(keyword,filename1,filename2,filename):
    # file = open(filename, 'a',encoding='UTF-8')
    lis=read_txt(filename1)

    for i in lis:
        j = i.split(',')
        for b in j:
        #关键字加密的
            if (keyword in b) and ('*'  in b):
                with open(filename, "a", encoding='UTF-8') as f:
                    f.write(b+"\n")
                #关键字未加密的
            elif (keyword in b) and ('*' not in b):
                with open(filename2, "a", encoding='UTF-8') as f:
                    # if keyword in str(i) :
                    f.write(b + "\n")
       
if __name__=='__main__':
    filename1=f'{main.BASE_DIR}/dataCenter/源文件.txt'
    filename=f'{main.BASE_DIR}/dataCenter/加密.txt'
    filename2=f'{main.BASE_DIR}/dataCenter/未加密.txt'
    keyword='mobileNo|custName|money|mobile|userNo|fullName|idNo|panNo|aadhaarNo|registerMobileNo|applyMobile|phone|name|aadhaarCardNo|aadhaarCardName|custRegisterPhoneNum|phoneNumber|idNumber|mobilePhone|middleName|firstName|number|surname|pan|oriPan|userId|password|cardNo|lastName|panCode|additionalMiddleName|PANNumber|panCard|PANId|pan_code'
    for keyword in keyword.split('|'):
        keyword=keyword+'='
        write_txt(keyword,filename1,filename2,filename)