在python中Template可以将字符串的格式固定下来，重复利用。 同一套测试框架为了可以复用，所以我们可以将用例部分做参数化，然后运用到各个项目中。

代码如下：

coding=utf-8

'''

作者：大石

功能：自动生成pyunit框架下的接口测试用例

环境：python2.7.6

用法：将用户给的参数处理成对应格式,然后调用模块类生成函数，并将参数传入即可

'''

from string import Template

#动态生成单个测试用例函数字符串

def singleMethodCreate(MethodList,interfaceNamePara):

code=Template('''\n def test_${testcase}(self):

u"""${testcaseName}"""

headers = $headers

data = $data

re = requests.$method(url='$url',headers=headers,data=data)

status_code = re.status_code

s = str(status_code)

json = re.text

logging.info('-'*5+'返回状态码是'+s+'-'*5)

logging.info('-'*5+'返回结果集是'+json+'-'*5)

assert status_code == 200

assert json['status'] == 'ok'

''')

string = code.substitute(testcase=MethodList["testcase"],testcaseName=MethodList["TestcaseName"],

method=MethodList['method'],url=MethodList['url'],headers=MethodList['headers'],data=MethodList['data'],

)

return string

#拼接单个的测试用例函数字符串为完整字符串并传回主函数

#MethodParaList获取测试用例部分list

def methodCreate(MethodParaList,interfaceNamePara):

string = ""

for MethodPara in MethodParaList:

string2=singleMethodCreate(MethodPara,interfaceNamePara)

string=string+string2

return string

#构造单个测试集

def singleTestsuitCreate(MethodList,parameters):

code = Template('''suite.addTest(${className}("test_${testcase}"))''')

string = code.substitute(testcase = MethodList["testcase"],className = parameters[0])

return string

#添加测试集

def addtestsuit(MethodParaList,interfaceNamePara):

string = ""

for MethodPara in MethodParaList:

string2 = singleTestsuitCreate(MethodPara,interfaceNamePara)

string=string+string2

return string

#生成测试用例类函数字符串

def modelClassCreate(parameters):

modelCode = methodCreate(parameters[2],parameters[1])

adtestsuit = addtestsuit(parameters[2],parameters)

code = Template('''#coding: utf-8

"""

作者：大石

功能：待执行的接口测试用例

环境：python2.7.6

用法：通过框架自动触发调用

"""

import unittest,requests,datetime,sys,logging,BSTestRunner,time,os

from Log import Log

class ${className}(unittest.TestCase):

u"""待测试接口：${interfaceName}"""

def setUp(self):

logging.info('-'*5+"begin test"+"-"*5)

def tearDown(self):

logging.info('-'*5+"end test"+'-'*5)

${model}

if __name__ == "__main__":

#解决UnicodeDecodeError: 'ascii' codec can't decode byte 0xe5 in position 97: ordinal not in range(128)

reload(sys)

sys.setdefaultencoding('utf8')

#构造测试集

suite = unittest.TestSuite()

${testsuite}

#定义date为日期，time为时间

date=time.strftime("%Y%m%d")

time1=time.strftime("%H%M%S")

now=time.strftime("%Y-%m-%d-%H_%M_%S",time.localtime(time.time()))

#创建路径

path='F:/test/study/yaml/test_log/'+now+"/"

#解决多次执行时报路径已存在的错误

try:

os.makedirs(path)

except:

if path!= None:

logging.error(u'当前路径已经存在')

filename=path+'Report.html'

fp=file(filename,'wb')

#日志记录

Log.log()

#执行测试

runner =BSTestRunner.BSTestRunner(stream=fp,title=u'下单平台接口测试用例',description=u'接口用例列表：')

runner.run(suite)

fp.close()

''')

fileStr = code.substitute(className=parameters[0],interfaceName=parameters[1],testsuite=adtestsuit,model=modelCode)

f=open(parameters[0]+".py",'w')

f.write(fileStr)

f.close()

然后测试用例部分如下：

parameters=["Testcase_Orders",

"/login",

[

{"TestcaseName":"测试登录","method":"post","url":"http://www.senbaba.cn/login","headers":{'content-type': 'application/json',

'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko',

'Accept':'application/x-ms-application, image/jpeg, application/xaml+xml, image/gif, image/pjpeg, application/x-ms-xbap, */*',

'Accept-Language':'zh-CN'},"data":{"uname":"187071484771","pwd":"123456"},

"testcase":"login"},

{"TestcaseName":"测试登录","method":"post","url":"http://www.senbaba.cn/login1","headers":{'content-type': 'application/json',

'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko',

'Accept':'application/x-ms-application, image/jpeg, application/xaml+xml, image/gif, image/pjpeg, application/x-ms-xbap, */*',

'Accept-Language':'zh-CN'},"data":{"uname":"187071484771","pwd":"123457"},

"testcase":"login_failed"}

]

]

自动生成的测试用例如下：

#coding: utf-8

"""

作者：大石

功能：待执行的接口测试用例

环境：python2.7.6

用法：通过框架自动触发调用

"""

import unittest,requests,datetime,sys,logging,BSTestRunner,time,os

from Log import Log

class Testcase_Orders(unittest.TestCase):

u"""待测试接口：/login"""

def setUp(self):

logging.info('-'*5+"begin test"+"-"*5)

def tearDown(self):

logging.info('-'*5+"end test"+'-'*5)

def test_login(self):

u"""测试登录"""

headers = {'Accept-Language': 'zh-CN', 'content-type': 'application/json', 'Accept': 'application/x-ms-application, image/jpeg, application/xaml+xml, image/gif, image/pjpeg, application/x-ms-xbap, */*', 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'}

data = {'uname': '187071484771', 'pwd': '123456'}

re = requests.post(url='http://www.senbaba.cn/login',headers=headers,data=data)

status_code = re.status_code

s = str(status_code)

json = re.text

logging.info('-'*5+'返回状态码是'+s+'-'*5)

logging.info('-'*5+'返回结果集是'+json+'-'*5)

assert status_code == 200

assert json['status'] == 'ok'

def test_login_failed(self):

u"""测试登录"""

headers = {'Accept-Language': 'zh-CN', 'content-type': 'application/json', 'Accept': 'application/x-ms-application, image/jpeg, application/xaml+xml, image/gif, image/pjpeg, application/x-ms-xbap, */*', 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'}

data = {'uname': '187071484771', 'pwd': '123457'}

re = requests.post(url='http://www.senbaba.cn/login1',headers=headers,data=data)

status_code = re.status_code

s = str(status_code)

json = re.text

logging.info('-'*5+'返回状态码是'+s+'-'*5)

logging.info('-'*5+'返回结果集是'+json+'-'*5)

assert status_code == 200

assert json['status'] == 'ok'

if __name__ == "__main__":

#解决UnicodeDecodeError: 'ascii' codec can't decode byte 0xe5 in position 97: ordinal not in range(128)

reload(sys)

sys.setdefaultencoding('utf8')

#构造测试集

suite = unittest.TestSuite()

suite.addTest(Testcase_Orders("test_login"))

suite.addTest(Testcase_Orders("test_login_failed"))

#定义date为日期，time为时间

date=time.strftime("%Y%m%d")

time1=time.strftime("%H%M%S")

now=time.strftime("%Y-%m-%d-%H_%M_%S",time.localtime(time.time()))

#创建路径

path='F:/test/study/yaml/test_log/'+now+"/"

#解决多次执行时报路径已存在的错误

try:

os.makedirs(path)

except:

if path!= None:

logging.error(u'当前路径已经存在')

filename=path+'Report.html'

fp=file(filename,'wb')

#日志记录

Log.log()

#执行测试

runner =BSTestRunner.BSTestRunner(stream=fp,title=u'下单平台接口测试用例',description=u'接口用例列表：')

runner.run(suite)

fp.close()

20171019添加测试集的一个简单方法：

#添加测试集

def addtestsuit(parameters):

string = ""

temp = Template('''\n suite.addTest(${className}("test_${testcase}"))

''')

l = len(parameters[2])

for i in range(0,l):

testcase1 = parameters[2][i]['testcase']

string2 = temp.substitute(className = parameters[0],testcase = testcase1)

string=string+string2

print string

return string